Add an optimization to jevents using the metric code, rewrite metrics
in terms of each other in order to minimize size and improve
readability. For example, on Power8
other_stall_cpi is rewritten from:
"PM_CMPLU_STALL / PM_RUN_INST_CMPL - PM_CMPLU_STALL_BRU_CRU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_FXU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_VSU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_LSU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_NTCG_FLUSH / PM_RUN_INST_CMPL - PM_CMPLU_STALL_NO_NTF / PM_RUN_INST_CMPL"
to:
"stall_cpi - bru_cru_stall_cpi - fxu_stall_cpi - vsu_stall_cpi - lsu_stall_cpi - ntcg_flush_cpi - no_ntf_stall_cpi"
Which more closely matches the definition on Power9.
A limitation of the substitutions are that they depend on strict
equality and the shape of the tree. This means that for "a + b + c"
then a substitution of "a + b" will succeed while "b + c" will fail
(the LHS for "+ c" is "a + b" not just "b").
Separate out the events and metrics in the pmu-events tables saving
14.8% in the table size while making it that metrics no longer need to
iterate over all events and vice versa. These changes remove evsel's
direct metric support as the pmu_event no longer has a metric to
populate it. This is a minor issue as the code wasn't working
properly, metrics for this are rare and can still be properly ran
using '-M'.
Add an ability to just build certain models into the jevents generated
pmu-metrics.c code. This functionality is appropriate for operating
systems like ChromeOS, that aim to minimize binary size and know all
the target CPU models.
v5. s/list/List/ in a type annotation to fix Python 3.6 as reported by
John Garry <[email protected]>. Fix a bug in metric_test.py
where a bad character was imported. To avoid similar regressions,
run metric_test.py before generating pmu-events.c.
v4. Better support the implementor/model style --model argument for
jevents.py. Add #slots test fix. On some patches add reviewed-by
John Garry <[email protected]> and Kajol
Jain<[email protected]>.
v3. Rebase an incorporate review comments from John Garry
<[email protected]>, in particular breaking apart patch 4
into 3 patches. The no jevents breakage and then later fix is
avoided in this series too.
v2. Rebase. Modify the code that skips rewriting a metric with the
same name with itself, to make the name check case insensitive.
Ian Rogers (15):
perf jevents metric: Correct Function equality
perf jevents metric: Add ability to rewrite metrics in terms of others
perf jevents: Rewrite metrics in the same file with each other
perf pmu-events: Add separate metric from pmu_event
perf pmu-events: Separate the metrics from events for no jevents
perf pmu-events: Remove now unused event and metric variables
perf stat: Remove evsel metric_name/expr
perf jevents: Combine table prefix and suffix writing
perf pmu-events: Introduce pmu_metrics_table
perf jevents: Generate metrics and events as separate tables
perf jevents: Add model list option
perf pmu-events: Fix testing with JEVENTS_ARCH=all
perf jevents: Correct bad character encoding
tools build: Add test echo-cmd
perf jevents: Run metric_test.py at compile-time
tools/build/Makefile.build | 1 +
tools/perf/arch/arm64/util/pmu.c | 11 +-
tools/perf/arch/powerpc/util/header.c | 4 +-
tools/perf/builtin-list.c | 20 +-
tools/perf/builtin-stat.c | 1 -
tools/perf/pmu-events/Build | 16 +-
tools/perf/pmu-events/empty-pmu-events.c | 108 ++++++-
tools/perf/pmu-events/jevents.py | 357 +++++++++++++++++++----
tools/perf/pmu-events/metric.py | 79 ++++-
tools/perf/pmu-events/metric_test.py | 15 +-
tools/perf/pmu-events/pmu-events.h | 26 +-
tools/perf/tests/expand-cgroup.c | 4 +-
tools/perf/tests/parse-metric.c | 4 +-
tools/perf/tests/pmu-events.c | 69 ++---
tools/perf/util/cgroup.c | 1 -
tools/perf/util/evsel.c | 2 -
tools/perf/util/evsel.h | 2 -
tools/perf/util/expr.h | 1 +
tools/perf/util/expr.l | 8 +-
tools/perf/util/metricgroup.c | 207 +++++++------
tools/perf/util/metricgroup.h | 4 +-
tools/perf/util/parse-events.c | 2 -
tools/perf/util/pmu.c | 44 +--
tools/perf/util/pmu.h | 10 +-
tools/perf/util/print-events.c | 32 +-
tools/perf/util/print-events.h | 3 +-
tools/perf/util/python.c | 7 -
tools/perf/util/stat-shadow.c | 112 -------
tools/perf/util/stat.h | 1 -
29 files changed, 681 insertions(+), 470 deletions(-)
mode change 100644 => 100755 tools/perf/pmu-events/metric_test.py
--
2.39.1.456.gfc5497dd1b-goog
rhs may not be defined, say for source_count, so add a guard.
Reviewed-by: Kajol Jain<[email protected]>
---
tools/perf/pmu-events/metric.py | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/tools/perf/pmu-events/metric.py b/tools/perf/pmu-events/metric.py
index 4797ed4fd817..2f2fd220e843 100644
--- a/tools/perf/pmu-events/metric.py
+++ b/tools/perf/pmu-events/metric.py
@@ -261,8 +261,10 @@ class Function(Expression):
def Equals(self, other: Expression) -> bool:
if isinstance(other, Function):
- return self.fn == other.fn and self.lhs.Equals(
- other.lhs) and self.rhs.Equals(other.rhs)
+ result = self.fn == other.fn and self.lhs.Equals(other.lhs)
+ if self.rhs:
+ result = result and self.rhs.Equals(other.rhs)
+ return result
return False
--
2.39.1.456.gfc5497dd1b-goog
Add RewriteMetricsInTermsOfOthers that iterates over pairs of names
and expressions trying to replace an expression, within the current
expression, with its name.
---
tools/perf/pmu-events/metric.py | 73 +++++++++++++++++++++++++++-
tools/perf/pmu-events/metric_test.py | 10 ++++
2 files changed, 81 insertions(+), 2 deletions(-)
diff --git a/tools/perf/pmu-events/metric.py b/tools/perf/pmu-events/metric.py
index 2f2fd220e843..77ea6ff98538 100644
--- a/tools/perf/pmu-events/metric.py
+++ b/tools/perf/pmu-events/metric.py
@@ -4,7 +4,7 @@ import ast
import decimal
import json
import re
-from typing import Dict, List, Optional, Set, Union
+from typing import Dict, List, Optional, Set, Tuple, Union
class Expression:
@@ -26,6 +26,9 @@ class Expression:
"""Returns true when two expressions are the same."""
raise NotImplementedError()
+ def Substitute(self, name: str, expression: 'Expression') -> 'Expression':
+ raise NotImplementedError()
+
def __str__(self) -> str:
return self.ToPerfJson()
@@ -186,6 +189,15 @@ class Operator(Expression):
other.lhs) and self.rhs.Equals(other.rhs)
return False
+ def Substitute(self, name: str, expression: Expression) -> Expression:
+ if self.Equals(expression):
+ return Event(name)
+ lhs = self.lhs.Substitute(name, expression)
+ rhs = None
+ if self.rhs:
+ rhs = self.rhs.Substitute(name, expression)
+ return Operator(self.operator, lhs, rhs)
+
class Select(Expression):
"""Represents a select ternary in the parse tree."""
@@ -225,6 +237,14 @@ class Select(Expression):
other.false_val) and self.true_val.Equals(other.true_val)
return False
+ def Substitute(self, name: str, expression: Expression) -> Expression:
+ if self.Equals(expression):
+ return Event(name)
+ true_val = self.true_val.Substitute(name, expression)
+ cond = self.cond.Substitute(name, expression)
+ false_val = self.false_val.Substitute(name, expression)
+ return Select(true_val, cond, false_val)
+
class Function(Expression):
"""A function in an expression like min, max, d_ratio."""
@@ -267,6 +287,15 @@ class Function(Expression):
return result
return False
+ def Substitute(self, name: str, expression: Expression) -> Expression:
+ if self.Equals(expression):
+ return Event(name)
+ lhs = self.lhs.Substitute(name, expression)
+ rhs = None
+ if self.rhs:
+ rhs = self.rhs.Substitute(name, expression)
+ return Function(self.fn, lhs, rhs)
+
def _FixEscapes(s: str) -> str:
s = re.sub(r'([^\\]),', r'\1\\,', s)
@@ -293,6 +322,9 @@ class Event(Expression):
def Equals(self, other: Expression) -> bool:
return isinstance(other, Event) and self.name == other.name
+ def Substitute(self, name: str, expression: Expression) -> Expression:
+ return self
+
class Constant(Expression):
"""A constant within the expression tree."""
@@ -317,6 +349,9 @@ class Constant(Expression):
def Equals(self, other: Expression) -> bool:
return isinstance(other, Constant) and self.value == other.value
+ def Substitute(self, name: str, expression: Expression) -> Expression:
+ return self
+
class Literal(Expression):
"""A runtime literal within the expression tree."""
@@ -336,6 +371,9 @@ class Literal(Expression):
def Equals(self, other: Expression) -> bool:
return isinstance(other, Literal) and self.value == other.value
+ def Substitute(self, name: str, expression: Expression) -> Expression:
+ return self
+
def min(lhs: Union[int, float, Expression], rhs: Union[int, float,
Expression]) -> Function:
@@ -461,6 +499,7 @@ class MetricGroup:
class _RewriteIfExpToSelect(ast.NodeTransformer):
+ """Transformer to convert if-else nodes to Select expressions."""
def visit_IfExp(self, node):
# pylint: disable=invalid-name
@@ -498,7 +537,37 @@ def ParsePerfJson(orig: str) -> Expression:
for kw in keywords:
py = re.sub(rf'Event\(r"{kw}"\)', kw, py)
- parsed = ast.parse(py, mode='eval')
+ try:
+ parsed = ast.parse(py, mode='eval')
+ except SyntaxError as e:
+ raise SyntaxError(f'Parsing expression:\n{orig}') from e
_RewriteIfExpToSelect().visit(parsed)
parsed = ast.fix_missing_locations(parsed)
return _Constify(eval(compile(parsed, orig, 'eval')))
+
+
+def RewriteMetricsInTermsOfOthers(metrics: List[Tuple[str, Expression]]
+ )-> Dict[str, Expression]:
+ """Shorten metrics by rewriting in terms of others.
+
+ Args:
+ metrics (list): pairs of metric names and their expressions.
+ Returns:
+ Dict: mapping from a metric name to a shortened expression.
+ """
+ updates: Dict[str, Expression] = dict()
+ for outer_name, outer_expression in metrics:
+ updated = outer_expression
+ while True:
+ for inner_name, inner_expression in metrics:
+ if inner_name.lower() == outer_name.lower():
+ continue
+ if inner_name in updates:
+ inner_expression = updates[inner_name]
+ updated = updated.Substitute(inner_name, inner_expression)
+ if updated.Equals(outer_expression):
+ break
+ if outer_name in updates and updated.Equals(updates[outer_name]):
+ break
+ updates[outer_name] = updated
+ return updates
diff --git a/tools/perf/pmu-events/metric_test.py b/tools/perf/pmu-events/metric_test.py
index 15315d0f716c..ced5998bd827 100644
--- a/tools/perf/pmu-events/metric_test.py
+++ b/tools/perf/pmu-events/metric_test.py
@@ -2,7 +2,9 @@
import unittest
from metric import Constant
from metric import Event
+from metric import Expression
from metric import ParsePerfJson
+from metric import RewriteMetricsInTermsOfOthers
class TestMetricExpressions(unittest.TestCase):
@@ -153,5 +155,13 @@ class TestMetricExpressions(unittest.TestCase):
after = '0 * SLOTS'
self.assertEqual(ParsePerfJson(before).Simplify().ToPerfJson(), after)
+ def test_RewriteMetricsInTermsOfOthers(self):
+ Expression.__eq__ = lambda e1, e2: e1.Equals(e2)
+ before = [('m1', ParsePerfJson('a + b + c + d')),
+ ('m2', ParsePerfJson('a + b + c'))]
+ after = {'m1': ParsePerfJson('m2 + d')}
+ self.assertEqual(RewriteMetricsInTermsOfOthers(before), after)
+ Expression.__eq__ = None
+
if __name__ == '__main__':
unittest.main()
--
2.39.1.456.gfc5497dd1b-goog
Rewrite metrics within the same file in terms of each other. For example, on Power8
other_stall_cpi is rewritten from:
"PM_CMPLU_STALL / PM_RUN_INST_CMPL - PM_CMPLU_STALL_BRU_CRU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_FXU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_VSU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_LSU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_NTCG_FLUSH / PM_RUN_INST_CMPL - PM_CMPLU_STALL_NO_NTF / PM_RUN_INST_CMPL"
to:
"stall_cpi - bru_cru_stall_cpi - fxu_stall_cpi - vsu_stall_cpi - lsu_stall_cpi - ntcg_flush_cpi - no_ntf_stall_cpi"
Which more closely matches the definition on Power9.
To avoid recomputation decorate the function with a cache.
---
tools/perf/pmu-events/jevents.py | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 0416b7442171..15a1671740cc 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -3,6 +3,7 @@
"""Convert directories of JSON events to C code."""
import argparse
import csv
+from functools import lru_cache
import json
import metric
import os
@@ -337,18 +338,28 @@ class JsonEvent:
s = self.build_c_string()
return f'{{ { _bcs.offsets[s] } }}, /* {s} */\n'
-
+@lru_cache(maxsize=None)
def read_json_events(path: str, topic: str) -> Sequence[JsonEvent]:
"""Read json events from the specified file."""
-
try:
- result = json.load(open(path), object_hook=JsonEvent)
+ events = json.load(open(path), object_hook=JsonEvent)
except BaseException as err:
print(f"Exception processing {path}")
raise
- for event in result:
+ metrics: list[Tuple[str, metric.Expression]] = []
+ for event in events:
event.topic = topic
- return result
+ if event.metric_name and '-' not in event.metric_name:
+ metrics.append((event.metric_name, event.metric_expr))
+ updates = metric.RewriteMetricsInTermsOfOthers(metrics)
+ if updates:
+ for event in events:
+ if event.metric_name in updates:
+ # print(f'Updated {event.metric_name} from\n"{event.metric_expr}"\n'
+ # f'to\n"{updates[event.metric_name]}"')
+ event.metric_expr = updates[event.metric_name]
+
+ return events
def preprocess_arch_std_files(archpath: str) -> None:
"""Read in all architecture standard events."""
--
2.39.1.456.gfc5497dd1b-goog
Create a new pmu_metric for the metric related variables from
pmu_event but that is initially just a clone of pmu_event. Add
iterators for pmu_metric and use in places that metrics are desired
rather than events. Make the event iterator skip metric only events,
and the metric iterator skip event only events.
Reviewed-by: John Garry <[email protected]>
---
tools/perf/arch/powerpc/util/header.c | 4 +-
tools/perf/pmu-events/empty-pmu-events.c | 49 ++++++-
tools/perf/pmu-events/jevents.py | 62 ++++++++-
tools/perf/pmu-events/pmu-events.h | 26 ++++
tools/perf/tests/pmu-events.c | 35 +++--
tools/perf/util/metricgroup.c | 161 +++++++++++------------
tools/perf/util/metricgroup.h | 2 +-
7 files changed, 228 insertions(+), 111 deletions(-)
diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c
index e8fe36b10d20..78eef77d8a8d 100644
--- a/tools/perf/arch/powerpc/util/header.c
+++ b/tools/perf/arch/powerpc/util/header.c
@@ -40,11 +40,11 @@ get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
return bufp;
}
-int arch_get_runtimeparam(const struct pmu_event *pe)
+int arch_get_runtimeparam(const struct pmu_metric *pm)
{
int count;
char path[PATH_MAX] = "/devices/hv_24x7/interface/";
- atoi(pe->aggr_mode) == PerChip ? strcat(path, "sockets") : strcat(path, "coresperchip");
+ atoi(pm->aggr_mode) == PerChip ? strcat(path, "sockets") : strcat(path, "coresperchip");
return sysfs__read_int(path, &count) < 0 ? 1 : count;
}
diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
index 480e8f0d30c8..4e39d1a8d6d6 100644
--- a/tools/perf/pmu-events/empty-pmu-events.c
+++ b/tools/perf/pmu-events/empty-pmu-events.c
@@ -181,6 +181,11 @@ struct pmu_events_table {
const struct pmu_event *entries;
};
+/* Struct used to make the PMU metric table implementation opaque to callers. */
+struct pmu_metrics_table {
+ const struct pmu_metric *entries;
+};
+
/*
* Map a CPU to its table of PMU events. The CPU is identified by the
* cpuid field, which is an arch-specific identifier for the CPU.
@@ -254,11 +259,29 @@ static const struct pmu_sys_events pmu_sys_event_tables[] = {
int pmu_events_table_for_each_event(const struct pmu_events_table *table, pmu_event_iter_fn fn,
void *data)
{
- for (const struct pmu_event *pe = &table->entries[0];
- pe->name || pe->metric_group || pe->metric_name;
- pe++) {
- int ret = fn(pe, table, data);
+ for (const struct pmu_event *pe = &table->entries[0]; pe->name || pe->metric_expr; pe++) {
+ int ret;
+ if (!pe->name)
+ continue;
+ ret = fn(pe, table, data);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+int pmu_events_table_for_each_metric(const struct pmu_events_table *etable, pmu_metric_iter_fn fn,
+ void *data)
+{
+ struct pmu_metrics_table *table = (struct pmu_metrics_table *)etable;
+
+ for (const struct pmu_metric *pm = &table->entries[0]; pm->name || pm->metric_expr; pm++) {
+ int ret;
+
+ if (!pm->metric_expr)
+ continue;
+ ret = fn(pm, etable, data);
if (ret)
return ret;
}
@@ -305,11 +328,22 @@ const struct pmu_events_table *find_core_events_table(const char *arch, const ch
}
int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data)
+{
+ for (const struct pmu_events_map *tables = &pmu_events_map[0]; tables->arch; tables++) {
+ int ret = pmu_events_table_for_each_event(&tables->table, fn, data);
+
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data)
{
for (const struct pmu_events_map *tables = &pmu_events_map[0];
tables->arch;
tables++) {
- int ret = pmu_events_table_for_each_event(&tables->table, fn, data);
+ int ret = pmu_events_table_for_each_metric(&tables->table, fn, data);
if (ret)
return ret;
@@ -340,3 +374,8 @@ int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data)
}
return 0;
}
+
+int pmu_for_each_sys_metric(pmu_metric_iter_fn fn __maybe_unused, void *data __maybe_unused)
+{
+ return 0;
+}
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 15a1671740cc..858787a12302 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -564,7 +564,19 @@ static const struct pmu_sys_events pmu_sys_event_tables[] = {
\t},
};
-static void decompress(int offset, struct pmu_event *pe)
+static void decompress_event(int offset, struct pmu_event *pe)
+{
+\tconst char *p = &big_c_string[offset];
+""")
+ for attr in _json_event_attributes:
+ _args.output_file.write(f"""
+\tpe->{attr} = (*p == '\\0' ? NULL : p);
+""")
+ if attr == _json_event_attributes[-1]:
+ continue
+ _args.output_file.write('\twhile (*p++);')
+ _args.output_file.write("""}
+static void decompress_metric(int offset, struct pmu_metric *pe)
{
\tconst char *p = &big_c_string[offset];
""")
@@ -585,7 +597,9 @@ int pmu_events_table_for_each_event(const struct pmu_events_table *table,
struct pmu_event pe;
int ret;
- decompress(table->entries[i].offset, &pe);
+ decompress_event(table->entries[i].offset, &pe);
+ if (!pe.name)
+ continue;
ret = fn(&pe, table, data);
if (ret)
return ret;
@@ -593,6 +607,24 @@ int pmu_events_table_for_each_event(const struct pmu_events_table *table,
return 0;
}
+int pmu_events_table_for_each_metric(const struct pmu_events_table *table,
+ pmu_metric_iter_fn fn,
+ void *data)
+{
+ for (size_t i = 0; i < table->length; i++) {
+ struct pmu_metric pm;
+ int ret;
+
+ decompress_metric(table->entries[i].offset, &pm);
+ if (!pm.metric_expr)
+ continue;
+ ret = fn(&pm, table, data);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
const struct pmu_events_table *perf_pmu__find_table(struct perf_pmu *pmu)
{
const struct pmu_events_table *table = NULL;
@@ -644,6 +676,19 @@ int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data)
return 0;
}
+int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data)
+{
+ for (const struct pmu_events_map *tables = &pmu_events_map[0];
+ tables->arch;
+ tables++) {
+ int ret = pmu_events_table_for_each_metric(&tables->table, fn, data);
+
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
const struct pmu_events_table *find_sys_events_table(const char *name)
{
for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
@@ -667,6 +712,19 @@ int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data)
}
return 0;
}
+
+int pmu_for_each_sys_metric(pmu_metric_iter_fn fn, void *data)
+{
+ for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
+ tables->name;
+ tables++) {
+ int ret = pmu_events_table_for_each_metric(&tables->table, fn, data);
+
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
""")
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index fe343c4d8016..45c0f508af23 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -30,20 +30,46 @@ struct pmu_event {
const char *metric_constraint;
};
+struct pmu_metric {
+ const char *name;
+ const char *compat;
+ const char *event;
+ const char *desc;
+ const char *topic;
+ const char *long_desc;
+ const char *pmu;
+ const char *unit;
+ const char *perpkg;
+ const char *aggr_mode;
+ const char *metric_expr;
+ const char *metric_name;
+ const char *metric_group;
+ const char *deprecated;
+ const char *metric_constraint;
+};
+
struct pmu_events_table;
typedef int (*pmu_event_iter_fn)(const struct pmu_event *pe,
const struct pmu_events_table *table,
void *data);
+typedef int (*pmu_metric_iter_fn)(const struct pmu_metric *pm,
+ const struct pmu_events_table *table,
+ void *data);
+
int pmu_events_table_for_each_event(const struct pmu_events_table *table, pmu_event_iter_fn fn,
void *data);
+int pmu_events_table_for_each_metric(const struct pmu_events_table *table, pmu_metric_iter_fn fn,
+ void *data);
const struct pmu_events_table *perf_pmu__find_table(struct perf_pmu *pmu);
const struct pmu_events_table *find_core_events_table(const char *arch, const char *cpuid);
int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data);
+int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data);
const struct pmu_events_table *find_sys_events_table(const char *name);
int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data);
+int pmu_for_each_sys_metric(pmu_metric_iter_fn fn, void *data);
#endif
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index a9f2330f6257..e5fb3d5a06c3 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -840,7 +840,7 @@ struct metric {
struct metric_ref metric_ref;
};
-static int test__parsing_callback(const struct pmu_event *pe, const struct pmu_events_table *table,
+static int test__parsing_callback(const struct pmu_metric *pm, const struct pmu_events_table *table,
void *data)
{
int *failures = data;
@@ -854,10 +854,10 @@ static int test__parsing_callback(const struct pmu_event *pe, const struct pmu_e
};
int err = 0;
- if (!pe->metric_expr)
+ if (!pm->metric_expr)
return 0;
- pr_debug("Found metric '%s'\n", pe->metric_name);
+ pr_debug("Found metric '%s'\n", pm->metric_name);
(*failures)++;
/*
@@ -877,14 +877,14 @@ static int test__parsing_callback(const struct pmu_event *pe, const struct pmu_e
perf_evlist__set_maps(&evlist->core, cpus, NULL);
runtime_stat__init(&st);
- err = metricgroup__parse_groups_test(evlist, table, pe->metric_name,
+ err = metricgroup__parse_groups_test(evlist, table, pm->metric_name,
false, false,
&metric_events);
if (err) {
- if (!strcmp(pe->metric_name, "M1") || !strcmp(pe->metric_name, "M2") ||
- !strcmp(pe->metric_name, "M3")) {
+ if (!strcmp(pm->metric_name, "M1") || !strcmp(pm->metric_name, "M2") ||
+ !strcmp(pm->metric_name, "M3")) {
(*failures)--;
- pr_debug("Expected broken metric %s skipping\n", pe->metric_name);
+ pr_debug("Expected broken metric %s skipping\n", pm->metric_name);
err = 0;
}
goto out_err;
@@ -912,7 +912,7 @@ static int test__parsing_callback(const struct pmu_event *pe, const struct pmu_e
struct metric_expr *mexp;
list_for_each_entry (mexp, &me->head, nd) {
- if (strcmp(mexp->metric_name, pe->metric_name))
+ if (strcmp(mexp->metric_name, pm->metric_name))
continue;
pr_debug("Result %f\n", test_generic_metric(mexp, 0, &st));
err = 0;
@@ -921,11 +921,11 @@ static int test__parsing_callback(const struct pmu_event *pe, const struct pmu_e
}
}
}
- pr_debug("Didn't find parsed metric %s", pe->metric_name);
+ pr_debug("Didn't find parsed metric %s", pm->metric_name);
err = 1;
out_err:
if (err)
- pr_debug("Broken metric %s\n", pe->metric_name);
+ pr_debug("Broken metric %s\n", pm->metric_name);
/* ... cleanup. */
metricgroup__rblist_exit(&metric_events);
@@ -941,8 +941,8 @@ static int test__parsing(struct test_suite *test __maybe_unused,
{
int failures = 0;
- pmu_for_each_core_event(test__parsing_callback, &failures);
- pmu_for_each_sys_event(test__parsing_callback, &failures);
+ pmu_for_each_core_metric(test__parsing_callback, &failures);
+ pmu_for_each_sys_metric(test__parsing_callback, &failures);
return failures == 0 ? TEST_OK : TEST_FAIL;
}
@@ -1021,14 +1021,11 @@ static int metric_parse_fake(const char *metric_name, const char *str)
return ret;
}
-static int test__parsing_fake_callback(const struct pmu_event *pe,
+static int test__parsing_fake_callback(const struct pmu_metric *pm,
const struct pmu_events_table *table __maybe_unused,
void *data __maybe_unused)
{
- if (!pe->metric_expr)
- return 0;
-
- return metric_parse_fake(pe->metric_name, pe->metric_expr);
+ return metric_parse_fake(pm->metric_name, pm->metric_expr);
}
/*
@@ -1047,11 +1044,11 @@ static int test__parsing_fake(struct test_suite *test __maybe_unused,
return err;
}
- err = pmu_for_each_core_event(test__parsing_fake_callback, NULL);
+ err = pmu_for_each_core_metric(test__parsing_fake_callback, NULL);
if (err)
return err;
- return pmu_for_each_sys_event(test__parsing_fake_callback, NULL);
+ return pmu_for_each_sys_metric(test__parsing_fake_callback, NULL);
}
static struct test_case pmu_events_tests[] = {
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index b9c273ed080a..47fd02af66f1 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -167,14 +167,14 @@ static void metricgroup___watchdog_constraint_hint(const char *name, bool foot)
" echo 1 > /proc/sys/kernel/nmi_watchdog\n");
}
-static bool metricgroup__has_constraint(const struct pmu_event *pe)
+static bool metricgroup__has_constraint(const struct pmu_metric *pm)
{
- if (!pe->metric_constraint)
+ if (!pm->metric_constraint)
return false;
- if (!strcmp(pe->metric_constraint, "NO_NMI_WATCHDOG") &&
+ if (!strcmp(pm->metric_constraint, "NO_NMI_WATCHDOG") &&
sysctl__nmi_watchdog_enabled()) {
- metricgroup___watchdog_constraint_hint(pe->metric_name, false);
+ metricgroup___watchdog_constraint_hint(pm->metric_name, false);
return true;
}
@@ -193,7 +193,7 @@ static void metric__free(struct metric *m)
free(m);
}
-static struct metric *metric__new(const struct pmu_event *pe,
+static struct metric *metric__new(const struct pmu_metric *pm,
const char *modifier,
bool metric_no_group,
int runtime,
@@ -210,15 +210,15 @@ static struct metric *metric__new(const struct pmu_event *pe,
if (!m->pctx)
goto out_err;
- m->metric_name = pe->metric_name;
+ m->metric_name = pm->metric_name;
m->modifier = NULL;
if (modifier) {
m->modifier = strdup(modifier);
if (!m->modifier)
goto out_err;
}
- m->metric_expr = pe->metric_expr;
- m->metric_unit = pe->unit;
+ m->metric_expr = pm->metric_expr;
+ m->metric_unit = pm->unit;
m->pctx->sctx.user_requested_cpu_list = NULL;
if (user_requested_cpu_list) {
m->pctx->sctx.user_requested_cpu_list = strdup(user_requested_cpu_list);
@@ -227,7 +227,7 @@ static struct metric *metric__new(const struct pmu_event *pe,
}
m->pctx->sctx.runtime = runtime;
m->pctx->sctx.system_wide = system_wide;
- m->has_constraint = metric_no_group || metricgroup__has_constraint(pe);
+ m->has_constraint = metric_no_group || metricgroup__has_constraint(pm);
m->metric_refs = NULL;
m->evlist = NULL;
@@ -348,10 +348,10 @@ static bool match_metric(const char *n, const char *list)
return false;
}
-static bool match_pe_metric(const struct pmu_event *pe, const char *metric)
+static bool match_pm_metric(const struct pmu_metric *pm, const char *metric)
{
- return match_metric(pe->metric_group, metric) ||
- match_metric(pe->metric_name, metric);
+ return match_metric(pm->metric_group, metric) ||
+ match_metric(pm->metric_name, metric);
}
/** struct mep - RB-tree node for building printing information. */
@@ -420,13 +420,13 @@ static struct mep *mep_lookup(struct rblist *groups, const char *metric_group,
return NULL;
}
-static int metricgroup__add_to_mep_groups(const struct pmu_event *pe,
+static int metricgroup__add_to_mep_groups(const struct pmu_metric *pm,
struct rblist *groups)
{
const char *g;
char *omg, *mg;
- mg = strdup(pe->metric_group ?: "No_group");
+ mg = strdup(pm->metric_group ?: "No_group");
if (!mg)
return -ENOMEM;
omg = mg;
@@ -435,15 +435,15 @@ static int metricgroup__add_to_mep_groups(const struct pmu_event *pe,
g = skip_spaces(g);
if (strlen(g))
- me = mep_lookup(groups, g, pe->metric_name);
+ me = mep_lookup(groups, g, pm->metric_name);
else
- me = mep_lookup(groups, "No_group", pe->metric_name);
+ me = mep_lookup(groups, "No_group", pm->metric_name);
if (me) {
- me->metric_desc = pe->desc;
- me->metric_long_desc = pe->long_desc;
- me->metric_expr = pe->metric_expr;
- me->metric_unit = pe->unit;
+ me->metric_desc = pm->desc;
+ me->metric_long_desc = pm->long_desc;
+ me->metric_expr = pm->metric_expr;
+ me->metric_unit = pm->unit;
}
}
free(omg);
@@ -452,40 +452,37 @@ static int metricgroup__add_to_mep_groups(const struct pmu_event *pe,
}
struct metricgroup_iter_data {
- pmu_event_iter_fn fn;
+ pmu_metric_iter_fn fn;
void *data;
};
-static int metricgroup__sys_event_iter(const struct pmu_event *pe,
+static int metricgroup__sys_event_iter(const struct pmu_metric *pm,
const struct pmu_events_table *table,
void *data)
{
struct metricgroup_iter_data *d = data;
struct perf_pmu *pmu = NULL;
- if (!pe->metric_expr || !pe->compat)
+ if (!pm->metric_expr || !pm->compat)
return 0;
while ((pmu = perf_pmu__scan(pmu))) {
- if (!pmu->id || strcmp(pmu->id, pe->compat))
+ if (!pmu->id || strcmp(pmu->id, pm->compat))
continue;
- return d->fn(pe, table, d->data);
+ return d->fn(pm, table, d->data);
}
return 0;
}
-static int metricgroup__add_to_mep_groups_callback(const struct pmu_event *pe,
+static int metricgroup__add_to_mep_groups_callback(const struct pmu_metric *pm,
const struct pmu_events_table *table __maybe_unused,
void *vdata)
{
struct rblist *groups = vdata;
- if (!pe->metric_name)
- return 0;
-
- return metricgroup__add_to_mep_groups(pe, groups);
+ return metricgroup__add_to_mep_groups(pm, groups);
}
void metricgroup__print(const struct print_callbacks *print_cb, void *print_state)
@@ -500,16 +497,16 @@ void metricgroup__print(const struct print_callbacks *print_cb, void *print_stat
groups.node_delete = mep_delete;
table = pmu_events_table__find();
if (table) {
- pmu_events_table_for_each_event(table,
- metricgroup__add_to_mep_groups_callback,
- &groups);
+ pmu_events_table_for_each_metric(table,
+ metricgroup__add_to_mep_groups_callback,
+ &groups);
}
{
struct metricgroup_iter_data data = {
.fn = metricgroup__add_to_mep_groups_callback,
.data = &groups,
};
- pmu_for_each_sys_event(metricgroup__sys_event_iter, &data);
+ pmu_for_each_sys_metric(metricgroup__sys_event_iter, &data);
}
for (node = rb_first_cached(&groups.entries); node; node = next) {
@@ -743,7 +740,7 @@ static int metricgroup__build_event_string(struct strbuf *events,
#undef RETURN_IF_NON_ZERO
}
-int __weak arch_get_runtimeparam(const struct pmu_event *pe __maybe_unused)
+int __weak arch_get_runtimeparam(const struct pmu_metric *pm __maybe_unused)
{
return 1;
}
@@ -773,10 +770,10 @@ struct metricgroup_add_iter_data {
static bool metricgroup__find_metric(const char *metric,
const struct pmu_events_table *table,
- struct pmu_event *pe);
+ struct pmu_metric *pm);
static int add_metric(struct list_head *metric_list,
- const struct pmu_event *pe,
+ const struct pmu_metric *pm,
const char *modifier,
bool metric_no_group,
const char *user_requested_cpu_list,
@@ -816,10 +813,10 @@ static int resolve_metric(struct list_head *metric_list,
size_t bkt;
struct to_resolve {
/* The metric to resolve. */
- struct pmu_event pe;
+ struct pmu_metric pm;
/*
* The key in the IDs map, this may differ from in case,
- * etc. from pe->metric_name.
+ * etc. from pm->metric_name.
*/
const char *key;
} *pending = NULL;
@@ -830,15 +827,15 @@ static int resolve_metric(struct list_head *metric_list,
* the pending array.
*/
hashmap__for_each_entry(root_metric->pctx->ids, cur, bkt) {
- struct pmu_event pe;
+ struct pmu_metric pm;
- if (metricgroup__find_metric(cur->pkey, table, &pe)) {
+ if (metricgroup__find_metric(cur->pkey, table, &pm)) {
pending = realloc(pending,
(pending_cnt + 1) * sizeof(struct to_resolve));
if (!pending)
return -ENOMEM;
- memcpy(&pending[pending_cnt].pe, &pe, sizeof(pe));
+ memcpy(&pending[pending_cnt].pm, &pm, sizeof(pm));
pending[pending_cnt].key = cur->pkey;
pending_cnt++;
}
@@ -853,7 +850,7 @@ static int resolve_metric(struct list_head *metric_list,
* context.
*/
for (i = 0; i < pending_cnt; i++) {
- ret = add_metric(metric_list, &pending[i].pe, modifier, metric_no_group,
+ ret = add_metric(metric_list, &pending[i].pm, modifier, metric_no_group,
user_requested_cpu_list, system_wide, root_metric, visited,
table);
if (ret)
@@ -867,7 +864,7 @@ static int resolve_metric(struct list_head *metric_list,
/**
* __add_metric - Add a metric to metric_list.
* @metric_list: The list the metric is added to.
- * @pe: The pmu_event containing the metric to be added.
+ * @pm: The pmu_metric containing the metric to be added.
* @modifier: if non-null event modifiers like "u".
* @metric_no_group: Should events written to events be grouped "{}" or
* global. Grouping is the default but due to multiplexing the
@@ -884,7 +881,7 @@ static int resolve_metric(struct list_head *metric_list,
* architecture perf is running upon.
*/
static int __add_metric(struct list_head *metric_list,
- const struct pmu_event *pe,
+ const struct pmu_metric *pm,
const char *modifier,
bool metric_no_group,
int runtime,
@@ -898,13 +895,13 @@ static int __add_metric(struct list_head *metric_list,
int ret;
bool is_root = !root_metric;
struct visited_metric visited_node = {
- .name = pe->metric_name,
+ .name = pm->metric_name,
.parent = visited,
};
for (vm = visited; vm; vm = vm->parent) {
- if (!strcmp(pe->metric_name, vm->name)) {
- pr_err("failed: recursion detected for %s\n", pe->metric_name);
+ if (!strcmp(pm->metric_name, vm->name)) {
+ pr_err("failed: recursion detected for %s\n", pm->metric_name);
return -1;
}
}
@@ -914,7 +911,7 @@ static int __add_metric(struct list_head *metric_list,
* This metric is the root of a tree and may reference other
* metrics that are added recursively.
*/
- root_metric = metric__new(pe, modifier, metric_no_group, runtime,
+ root_metric = metric__new(pm, modifier, metric_no_group, runtime,
user_requested_cpu_list, system_wide);
if (!root_metric)
return -ENOMEM;
@@ -929,7 +926,7 @@ static int __add_metric(struct list_head *metric_list,
*/
if (root_metric->metric_refs) {
for (; root_metric->metric_refs[cnt].metric_name; cnt++) {
- if (!strcmp(pe->metric_name,
+ if (!strcmp(pm->metric_name,
root_metric->metric_refs[cnt].metric_name))
return 0;
}
@@ -947,8 +944,8 @@ static int __add_metric(struct list_head *metric_list,
* need to change them, so there's no need to create
* our own copy.
*/
- root_metric->metric_refs[cnt].metric_name = pe->metric_name;
- root_metric->metric_refs[cnt].metric_expr = pe->metric_expr;
+ root_metric->metric_refs[cnt].metric_name = pm->metric_name;
+ root_metric->metric_refs[cnt].metric_expr = pm->metric_expr;
/* Null terminate array. */
root_metric->metric_refs[cnt+1].metric_name = NULL;
@@ -959,7 +956,7 @@ static int __add_metric(struct list_head *metric_list,
* For both the parent and referenced metrics, we parse
* all the metric's IDs and add it to the root context.
*/
- if (expr__find_ids(pe->metric_expr, NULL, root_metric->pctx) < 0) {
+ if (expr__find_ids(pm->metric_expr, NULL, root_metric->pctx) < 0) {
/* Broken metric. */
ret = -EINVAL;
} else {
@@ -981,37 +978,37 @@ static int __add_metric(struct list_head *metric_list,
struct metricgroup__find_metric_data {
const char *metric;
- struct pmu_event *pe;
+ struct pmu_metric *pm;
};
-static int metricgroup__find_metric_callback(const struct pmu_event *pe,
+static int metricgroup__find_metric_callback(const struct pmu_metric *pm,
const struct pmu_events_table *table __maybe_unused,
void *vdata)
{
struct metricgroup__find_metric_data *data = vdata;
- if (!match_metric(pe->metric_name, data->metric))
+ if (!match_metric(pm->metric_name, data->metric))
return 0;
- memcpy(data->pe, pe, sizeof(*pe));
+ memcpy(data->pm, pm, sizeof(*pm));
return 1;
}
static bool metricgroup__find_metric(const char *metric,
const struct pmu_events_table *table,
- struct pmu_event *pe)
+ struct pmu_metric *pm)
{
struct metricgroup__find_metric_data data = {
.metric = metric,
- .pe = pe,
+ .pm = pm,
};
- return pmu_events_table_for_each_event(table, metricgroup__find_metric_callback, &data)
+ return pmu_events_table_for_each_metric(table, metricgroup__find_metric_callback, &data)
? true : false;
}
static int add_metric(struct list_head *metric_list,
- const struct pmu_event *pe,
+ const struct pmu_metric *pm,
const char *modifier,
bool metric_no_group,
const char *user_requested_cpu_list,
@@ -1022,16 +1019,16 @@ static int add_metric(struct list_head *metric_list,
{
int ret = 0;
- pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
+ pr_debug("metric expr %s for %s\n", pm->metric_expr, pm->metric_name);
- if (!strstr(pe->metric_expr, "?")) {
- ret = __add_metric(metric_list, pe, modifier, metric_no_group, 0,
+ if (!strstr(pm->metric_expr, "?")) {
+ ret = __add_metric(metric_list, pm, modifier, metric_no_group, 0,
user_requested_cpu_list, system_wide, root_metric,
visited, table);
} else {
int j, count;
- count = arch_get_runtimeparam(pe);
+ count = arch_get_runtimeparam(pm);
/* This loop is added to create multiple
* events depend on count value and add
@@ -1039,7 +1036,7 @@ static int add_metric(struct list_head *metric_list,
*/
for (j = 0; j < count && !ret; j++)
- ret = __add_metric(metric_list, pe, modifier, metric_no_group, j,
+ ret = __add_metric(metric_list, pm, modifier, metric_no_group, j,
user_requested_cpu_list, system_wide,
root_metric, visited, table);
}
@@ -1047,17 +1044,17 @@ static int add_metric(struct list_head *metric_list,
return ret;
}
-static int metricgroup__add_metric_sys_event_iter(const struct pmu_event *pe,
+static int metricgroup__add_metric_sys_event_iter(const struct pmu_metric *pm,
const struct pmu_events_table *table __maybe_unused,
void *data)
{
struct metricgroup_add_iter_data *d = data;
int ret;
- if (!match_pe_metric(pe, d->metric_name))
+ if (!match_pm_metric(pm, d->metric_name))
return 0;
- ret = add_metric(d->metric_list, pe, d->modifier, d->metric_no_group,
+ ret = add_metric(d->metric_list, pm, d->modifier, d->metric_no_group,
d->user_requested_cpu_list, d->system_wide,
d->root_metric, d->visited, d->table);
if (ret)
@@ -1107,19 +1104,19 @@ struct metricgroup__add_metric_data {
bool has_match;
};
-static int metricgroup__add_metric_callback(const struct pmu_event *pe,
+static int metricgroup__add_metric_callback(const struct pmu_metric *pm,
const struct pmu_events_table *table,
void *vdata)
{
struct metricgroup__add_metric_data *data = vdata;
int ret = 0;
- if (pe->metric_expr &&
- (match_metric(pe->metric_group, data->metric_name) ||
- match_metric(pe->metric_name, data->metric_name))) {
+ if (pm->metric_expr &&
+ (match_metric(pm->metric_group, data->metric_name) ||
+ match_metric(pm->metric_name, data->metric_name))) {
data->has_match = true;
- ret = add_metric(data->list, pe, data->modifier, data->metric_no_group,
+ ret = add_metric(data->list, pm, data->modifier, data->metric_no_group,
data->user_requested_cpu_list, data->system_wide,
/*root_metric=*/NULL, /*visited_metrics=*/NULL, table);
}
@@ -1166,8 +1163,8 @@ static int metricgroup__add_metric(const char *metric_name, const char *modifier
* Iterate over all metrics seeing if metric matches either the
* name or group. When it does add the metric to the list.
*/
- ret = pmu_events_table_for_each_event(table, metricgroup__add_metric_callback,
- &data);
+ ret = pmu_events_table_for_each_metric(table, metricgroup__add_metric_callback,
+ &data);
if (ret)
goto out;
@@ -1189,7 +1186,7 @@ static int metricgroup__add_metric(const char *metric_name, const char *modifier
},
};
- pmu_for_each_sys_event(metricgroup__sys_event_iter, &data);
+ pmu_for_each_sys_metric(metricgroup__sys_event_iter, &data);
}
/* End of pmu events. */
if (!has_match)
@@ -1603,16 +1600,16 @@ int metricgroup__parse_groups_test(struct evlist *evlist,
&perf_pmu__fake, metric_events, table);
}
-static int metricgroup__has_metric_callback(const struct pmu_event *pe,
+static int metricgroup__has_metric_callback(const struct pmu_metric *pm,
const struct pmu_events_table *table __maybe_unused,
void *vdata)
{
const char *metric = vdata;
- if (!pe->metric_expr)
+ if (!pm->metric_expr)
return 0;
- if (match_metric(pe->metric_name, metric))
+ if (match_metric(pm->metric_name, metric))
return 1;
return 0;
@@ -1625,8 +1622,8 @@ bool metricgroup__has_metric(const char *metric)
if (!table)
return false;
- return pmu_events_table_for_each_event(table, metricgroup__has_metric_callback,
- (void *)metric) ? true : false;
+ return pmu_events_table_for_each_metric(table, metricgroup__has_metric_callback,
+ (void *)metric) ? true : false;
}
int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
index 0013cf582173..b1f186d0f514 100644
--- a/tools/perf/util/metricgroup.h
+++ b/tools/perf/util/metricgroup.h
@@ -81,7 +81,7 @@ int metricgroup__parse_groups_test(struct evlist *evlist,
void metricgroup__print(const struct print_callbacks *print_cb, void *print_state);
bool metricgroup__has_metric(const char *metric);
-int arch_get_runtimeparam(const struct pmu_event *pe __maybe_unused);
+int arch_get_runtimeparam(const struct pmu_metric *pm);
void metricgroup__rblist_exit(struct rblist *metric_events);
int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
--
2.39.1.456.gfc5497dd1b-goog
Separate the event and metric table when building without jevents. Add
find_core_metrics_table and perf_pmu__find_metrics_table while
renaming existing utilities to be event specific, so that users can
find the right table for their need.
Reviewed-by: John Garry <[email protected]>
---
tools/perf/pmu-events/empty-pmu-events.c | 88 ++++++++++++++++++------
tools/perf/pmu-events/jevents.py | 7 +-
tools/perf/pmu-events/pmu-events.h | 4 +-
tools/perf/tests/expand-cgroup.c | 2 +-
tools/perf/tests/parse-metric.c | 2 +-
tools/perf/util/pmu.c | 4 +-
6 files changed, 79 insertions(+), 28 deletions(-)
diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
index 4e39d1a8d6d6..10bd4943ebf8 100644
--- a/tools/perf/pmu-events/empty-pmu-events.c
+++ b/tools/perf/pmu-events/empty-pmu-events.c
@@ -11,7 +11,7 @@
#include <string.h>
#include <stddef.h>
-static const struct pmu_event pme_test_soc_cpu[] = {
+static const struct pmu_event pmu_events__test_soc_cpu[] = {
{
.name = "l3_cache_rd",
.event = "event=0x40",
@@ -105,6 +105,14 @@ static const struct pmu_event pme_test_soc_cpu[] = {
.desc = "L2 BTB Correction",
.topic = "branch",
},
+ {
+ .name = 0,
+ .event = 0,
+ .desc = 0,
+ },
+};
+
+static const struct pmu_metric pmu_metrics__test_soc_cpu[] = {
{
.metric_expr = "1 / IPC",
.metric_name = "CPI",
@@ -170,9 +178,8 @@ static const struct pmu_event pme_test_soc_cpu[] = {
.metric_name = "L1D_Cache_Fill_BW",
},
{
- .name = 0,
- .event = 0,
- .desc = 0,
+ .metric_expr = 0,
+ .metric_name = 0,
},
};
@@ -197,7 +204,8 @@ struct pmu_metrics_table {
struct pmu_events_map {
const char *arch;
const char *cpuid;
- const struct pmu_events_table table;
+ const struct pmu_events_table event_table;
+ const struct pmu_metrics_table metric_table;
};
/*
@@ -208,12 +216,14 @@ static const struct pmu_events_map pmu_events_map[] = {
{
.arch = "testarch",
.cpuid = "testcpu",
- .table = { pme_test_soc_cpu },
+ .event_table = { pmu_events__test_soc_cpu },
+ .metric_table = { pmu_metrics__test_soc_cpu },
},
{
.arch = 0,
.cpuid = 0,
- .table = { 0 },
+ .event_table = { 0 },
+ .metric_table = { 0 },
},
};
@@ -259,12 +269,9 @@ static const struct pmu_sys_events pmu_sys_event_tables[] = {
int pmu_events_table_for_each_event(const struct pmu_events_table *table, pmu_event_iter_fn fn,
void *data)
{
- for (const struct pmu_event *pe = &table->entries[0]; pe->name || pe->metric_expr; pe++) {
- int ret;
+ for (const struct pmu_event *pe = &table->entries[0]; pe->name; pe++) {
+ int ret = fn(pe, table, data);
- if (!pe->name)
- continue;
- ret = fn(pe, table, data);
if (ret)
return ret;
}
@@ -276,19 +283,44 @@ int pmu_events_table_for_each_metric(const struct pmu_events_table *etable, pmu_
{
struct pmu_metrics_table *table = (struct pmu_metrics_table *)etable;
- for (const struct pmu_metric *pm = &table->entries[0]; pm->name || pm->metric_expr; pm++) {
- int ret;
+ for (const struct pmu_metric *pm = &table->entries[0]; pm->metric_expr; pm++) {
+ int ret = fn(pm, etable, data);
- if (!pm->metric_expr)
- continue;
- ret = fn(pm, etable, data);
if (ret)
return ret;
}
return 0;
}
-const struct pmu_events_table *perf_pmu__find_table(struct perf_pmu *pmu)
+const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
+{
+ const struct pmu_events_table *table = NULL;
+ char *cpuid = perf_pmu__getcpuid(pmu);
+ int i;
+
+ /* on some platforms which uses cpus map, cpuid can be NULL for
+ * PMUs other than CORE PMUs.
+ */
+ if (!cpuid)
+ return NULL;
+
+ i = 0;
+ for (;;) {
+ const struct pmu_events_map *map = &pmu_events_map[i++];
+
+ if (!map->cpuid)
+ break;
+
+ if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
+ table = &map->event_table;
+ break;
+ }
+ }
+ free(cpuid);
+ return table;
+}
+
+const struct pmu_events_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu)
{
const struct pmu_events_table *table = NULL;
char *cpuid = perf_pmu__getcpuid(pmu);
@@ -308,7 +340,7 @@ const struct pmu_events_table *perf_pmu__find_table(struct perf_pmu *pmu)
break;
if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
- table = &map->table;
+ table = (const struct pmu_events_table *)&map->metric_table;
break;
}
}
@@ -322,7 +354,18 @@ const struct pmu_events_table *find_core_events_table(const char *arch, const ch
tables->arch;
tables++) {
if (!strcmp(tables->arch, arch) && !strcmp_cpuid_str(tables->cpuid, cpuid))
- return &tables->table;
+ return &tables->event_table;
+ }
+ return NULL;
+}
+
+const struct pmu_events_table *find_core_metrics_table(const char *arch, const char *cpuid)
+{
+ for (const struct pmu_events_map *tables = &pmu_events_map[0];
+ tables->arch;
+ tables++) {
+ if (!strcmp(tables->arch, arch) && !strcmp_cpuid_str(tables->cpuid, cpuid))
+ return (const struct pmu_events_table *)&tables->metric_table;
}
return NULL;
}
@@ -330,7 +373,7 @@ const struct pmu_events_table *find_core_events_table(const char *arch, const ch
int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data)
{
for (const struct pmu_events_map *tables = &pmu_events_map[0]; tables->arch; tables++) {
- int ret = pmu_events_table_for_each_event(&tables->table, fn, data);
+ int ret = pmu_events_table_for_each_event(&tables->event_table, fn, data);
if (ret)
return ret;
@@ -343,7 +386,8 @@ int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data)
for (const struct pmu_events_map *tables = &pmu_events_map[0];
tables->arch;
tables++) {
- int ret = pmu_events_table_for_each_metric(&tables->table, fn, data);
+ int ret = pmu_events_table_for_each_metric(
+ (const struct pmu_events_table *)&tables->metric_table, fn, data);
if (ret)
return ret;
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 858787a12302..8df14ab14fcf 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -625,7 +625,7 @@ int pmu_events_table_for_each_metric(const struct pmu_events_table *table,
return 0;
}
-const struct pmu_events_table *perf_pmu__find_table(struct perf_pmu *pmu)
+const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
{
const struct pmu_events_table *table = NULL;
char *cpuid = perf_pmu__getcpuid(pmu);
@@ -663,6 +663,11 @@ const struct pmu_events_table *find_core_events_table(const char *arch, const ch
return NULL;
}
+const struct pmu_events_table *find_core_metrics_table(const char *arch, const char *cpuid)
+{
+ return (struct pmu_events_table *)find_core_events_table(arch, cpuid);
+}
+
int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data)
{
for (const struct pmu_events_map *tables = &pmu_events_map[0];
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index 45c0f508af23..e2cd3e61acef 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -63,8 +63,10 @@ int pmu_events_table_for_each_event(const struct pmu_events_table *table, pmu_ev
int pmu_events_table_for_each_metric(const struct pmu_events_table *table, pmu_metric_iter_fn fn,
void *data);
-const struct pmu_events_table *perf_pmu__find_table(struct perf_pmu *pmu);
+const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu);
+const struct pmu_events_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu);
const struct pmu_events_table *find_core_events_table(const char *arch, const char *cpuid);
+const struct pmu_events_table *find_core_metrics_table(const char *arch, const char *cpuid);
int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data);
int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data);
diff --git a/tools/perf/tests/expand-cgroup.c b/tools/perf/tests/expand-cgroup.c
index 51fb5f34c1dd..4f3195b84463 100644
--- a/tools/perf/tests/expand-cgroup.c
+++ b/tools/perf/tests/expand-cgroup.c
@@ -186,7 +186,7 @@ static int expand_metric_events(void)
TEST_ASSERT_VAL("failed to get evlist", evlist);
rblist__init(&metric_events);
- pme_test = find_core_events_table("testarch", "testcpu");
+ pme_test = find_core_metrics_table("testarch", "testcpu");
ret = metricgroup__parse_groups_test(evlist, pme_test, metric_str,
false, false, &metric_events);
if (ret < 0) {
diff --git a/tools/perf/tests/parse-metric.c b/tools/perf/tests/parse-metric.c
index 21b7ac00d798..6c527cd805fe 100644
--- a/tools/perf/tests/parse-metric.c
+++ b/tools/perf/tests/parse-metric.c
@@ -96,7 +96,7 @@ static int __compute_metric(const char *name, struct value *vals,
runtime_stat__init(&st);
/* Parse the metric into metric_events list. */
- pme_test = find_core_events_table("testarch", "testcpu");
+ pme_test = find_core_metrics_table("testarch", "testcpu");
err = metricgroup__parse_groups_test(evlist, pme_test, name,
false, false,
&metric_events);
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 8abf5b8439a7..3a67b17b4a16 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -663,7 +663,7 @@ char *perf_pmu__getcpuid(struct perf_pmu *pmu)
__weak const struct pmu_events_table *pmu_events_table__find(void)
{
- return perf_pmu__find_table(NULL);
+ return perf_pmu__find_events_table(NULL);
}
/*
@@ -794,7 +794,7 @@ static void pmu_add_cpu_aliases(struct list_head *head, struct perf_pmu *pmu)
{
const struct pmu_events_table *table;
- table = perf_pmu__find_table(pmu);
+ table = perf_pmu__find_events_table(pmu);
if (!table)
return;
--
2.39.1.456.gfc5497dd1b-goog
Previous changes separated the uses of pmu_event and pmu_metric,
however, both structures contained all the variables of event and
metric. This change removes the event variables from metric and the
metric variables from event.
Note, this change removes the setting of evsel's metric_name/expr as
these fields are no longer part of struct pmu_event. The metric
remains but is no longer implicitly requested when the event is. This
impacts a few Intel uncore events, however, as the ScaleUnit is shared
by the event and the metric this utility is questionable. Also the
MetricNames look broken (contain spaces) in some cases and when trying
to use the functionality with '-e' the metrics fail but regular
metrics with '-M' work. For example, on SkylakeX '-M' works:
```
$ perf stat -M LLC_MISSES.PCIE_WRITE -a sleep 1
Performance counter stats for 'system wide':
0 UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART2 # 57896.0 Bytes LLC_MISSES.PCIE_WRITE (49.84%)
7,174 UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART1 (49.85%)
0 UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART3 (50.16%)
63 UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART0 (50.15%)
1.004576381 seconds time elapsed
```
whilst the event '-e' version is broken even with --group/-g (fwiw, we should also remove -g [1]):
```
$ perf stat -g -e LLC_MISSES.PCIE_WRITE -g -a sleep 1
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART2 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART1 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART3 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART0 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART2 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART1 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART3 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART0 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART2 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART1 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART3 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART0 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART2 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART1 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART3 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART0 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART2 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART1 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART3 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART0 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART2 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART1 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART3 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Add UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART0 event to groups to get metric expression for LLC_MISSES.PCIE_WRITE
Performance counter stats for 'system wide':
27,316 Bytes LLC_MISSES.PCIE_WRITE
1.004505469 seconds time elapsed
```
The code also carries warnings where the user is supposed to select
events for metrics [2] but given the lack of use of such a feature,
let's clean the code and just remove.
[1] https://lore.kernel.org/lkml/[email protected]/
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/perf/util/stat-shadow.c?id=01b8957b738f42f96a130079bc951b3cc78c5b8a#n425
Reviewed-by: John Garry <[email protected]>
---
tools/perf/builtin-list.c | 20 ++---------------
tools/perf/pmu-events/jevents.py | 20 +++++++++++++----
tools/perf/pmu-events/pmu-events.h | 22 +++++--------------
tools/perf/tests/pmu-events.c | 27 -----------------------
tools/perf/util/parse-events.c | 2 --
tools/perf/util/pmu.c | 35 +++---------------------------
tools/perf/util/pmu.h | 9 --------
tools/perf/util/print-events.c | 32 +++++++--------------------
tools/perf/util/print-events.h | 3 +--
9 files changed, 36 insertions(+), 134 deletions(-)
diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index 137d73edb541..791f513ae5b4 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -99,8 +99,7 @@ static void default_print_event(void *ps, const char *pmu_name, const char *topi
const char *scale_unit __maybe_unused,
bool deprecated, const char *event_type_desc,
const char *desc, const char *long_desc,
- const char *encoding_desc,
- const char *metric_name, const char *metric_expr)
+ const char *encoding_desc)
{
struct print_state *print_state = ps;
int pos;
@@ -159,10 +158,6 @@ static void default_print_event(void *ps, const char *pmu_name, const char *topi
if (print_state->detailed && encoding_desc) {
printf("%*s", 8, "");
wordwrap(encoding_desc, 8, pager_get_columns(), 0);
- if (metric_name)
- printf(" MetricName: %s", metric_name);
- if (metric_expr)
- printf(" MetricExpr: %s", metric_expr);
putchar('\n');
}
}
@@ -308,8 +303,7 @@ static void json_print_event(void *ps, const char *pmu_name, const char *topic,
const char *scale_unit,
bool deprecated, const char *event_type_desc,
const char *desc, const char *long_desc,
- const char *encoding_desc,
- const char *metric_name, const char *metric_expr)
+ const char *encoding_desc)
{
struct json_print_state *print_state = ps;
bool need_sep = false;
@@ -366,16 +360,6 @@ static void json_print_event(void *ps, const char *pmu_name, const char *topic,
encoding_desc);
need_sep = true;
}
- if (metric_name) {
- fix_escape_printf(&buf, "%s\t\"MetricName\": \"%S\"", need_sep ? ",\n" : "",
- metric_name);
- need_sep = true;
- }
- if (metric_expr) {
- fix_escape_printf(&buf, "%s\t\"MetricExpr\": \"%S\"", need_sep ? ",\n" : "",
- metric_expr);
- need_sep = true;
- }
printf("%s}", need_sep ? "\n" : "");
strbuf_release(&buf);
}
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 8df14ab14fcf..4cdbf34b7298 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -37,6 +37,11 @@ _json_event_attributes = [
'metric_constraint', 'metric_expr', 'long_desc'
]
+# Attributes that are in pmu_metric rather than pmu_event.
+_json_metric_attributes = [
+ 'metric_name', 'metric_group', 'metric_constraint', 'metric_expr', 'desc',
+ 'long_desc', 'unit', 'compat', 'aggr_mode'
+]
def removesuffix(s: str, suffix: str) -> str:
"""Remove the suffix from a string
@@ -569,21 +574,28 @@ static void decompress_event(int offset, struct pmu_event *pe)
\tconst char *p = &big_c_string[offset];
""")
for attr in _json_event_attributes:
- _args.output_file.write(f"""
+ if attr in _json_metric_attributes and 'metric_' in attr:
+ _args.output_file.write(f'\n\t/* Skip {attr} */\n')
+ else:
+ _args.output_file.write(f"""
\tpe->{attr} = (*p == '\\0' ? NULL : p);
""")
if attr == _json_event_attributes[-1]:
continue
_args.output_file.write('\twhile (*p++);')
_args.output_file.write("""}
-static void decompress_metric(int offset, struct pmu_metric *pe)
+
+static void decompress_metric(int offset, struct pmu_metric *pm)
{
\tconst char *p = &big_c_string[offset];
""")
for attr in _json_event_attributes:
- _args.output_file.write(f"""
-\tpe->{attr} = (*p == '\\0' ? NULL : p);
+ if attr in _json_metric_attributes:
+ _args.output_file.write(f"""
+\tpm->{attr} = (*p == '\\0' ? NULL : p);
""")
+ else:
+ _args.output_file.write(f'\n\t/* Skip {attr} */\n')
if attr == _json_event_attributes[-1]:
continue
_args.output_file.write('\twhile (*p++);')
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index e2cd3e61acef..dca32979d6a4 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -23,29 +23,19 @@ struct pmu_event {
const char *unit;
const char *perpkg;
const char *aggr_mode;
- const char *metric_expr;
- const char *metric_name;
- const char *metric_group;
const char *deprecated;
- const char *metric_constraint;
};
struct pmu_metric {
- const char *name;
- const char *compat;
- const char *event;
- const char *desc;
- const char *topic;
- const char *long_desc;
- const char *pmu;
- const char *unit;
- const char *perpkg;
- const char *aggr_mode;
- const char *metric_expr;
const char *metric_name;
const char *metric_group;
- const char *deprecated;
+ const char *metric_expr;
+ const char *unit;
+ const char *compat;
+ const char *aggr_mode;
const char *metric_constraint;
+ const char *desc;
+ const char *long_desc;
};
struct pmu_events_table;
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index e5fb3d5a06c3..c2b3ada57cbc 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -337,36 +337,12 @@ static int compare_pmu_events(const struct pmu_event *e1, const struct pmu_event
return -1;
}
- if (!is_same(e1->metric_expr, e2->metric_expr)) {
- pr_debug2("testing event e1 %s: mismatched metric_expr, %s vs %s\n",
- e1->name, e1->metric_expr, e2->metric_expr);
- return -1;
- }
-
- if (!is_same(e1->metric_name, e2->metric_name)) {
- pr_debug2("testing event e1 %s: mismatched metric_name, %s vs %s\n",
- e1->name, e1->metric_name, e2->metric_name);
- return -1;
- }
-
- if (!is_same(e1->metric_group, e2->metric_group)) {
- pr_debug2("testing event e1 %s: mismatched metric_group, %s vs %s\n",
- e1->name, e1->metric_group, e2->metric_group);
- return -1;
- }
-
if (!is_same(e1->deprecated, e2->deprecated)) {
pr_debug2("testing event e1 %s: mismatched deprecated, %s vs %s\n",
e1->name, e1->deprecated, e2->deprecated);
return -1;
}
- if (!is_same(e1->metric_constraint, e2->metric_constraint)) {
- pr_debug2("testing event e1 %s: mismatched metric_constant, %s vs %s\n",
- e1->name, e1->metric_constraint, e2->metric_constraint);
- return -1;
- }
-
return 0;
}
@@ -432,9 +408,6 @@ static int test__pmu_event_table_core_callback(const struct pmu_event *pe,
struct perf_pmu_test_event const **test_event_table;
bool found = false;
- if (!pe->name)
- return 0;
-
if (pe->pmu)
test_event_table = &uncore_events[0];
else
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 21cce83462b3..0336ff27c15f 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1570,8 +1570,6 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
evsel->scale = info.scale;
evsel->per_pkg = info.per_pkg;
evsel->snapshot = info.snapshot;
- evsel->metric_expr = info.metric_expr;
- evsel->metric_name = info.metric_name;
return 0;
}
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 3a67b17b4a16..f8c214d8815f 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -280,10 +280,6 @@ static void perf_pmu_update_alias(struct perf_pmu_alias *old,
perf_pmu_assign_str(old->name, "long_desc", &old->long_desc,
&newalias->long_desc);
perf_pmu_assign_str(old->name, "topic", &old->topic, &newalias->topic);
- perf_pmu_assign_str(old->name, "metric_expr", &old->metric_expr,
- &newalias->metric_expr);
- perf_pmu_assign_str(old->name, "metric_name", &old->metric_name,
- &newalias->metric_name);
perf_pmu_assign_str(old->name, "value", &old->str, &newalias->str);
old->scale = newalias->scale;
old->per_pkg = newalias->per_pkg;
@@ -299,8 +295,6 @@ void perf_pmu_free_alias(struct perf_pmu_alias *newalias)
zfree(&newalias->long_desc);
zfree(&newalias->topic);
zfree(&newalias->str);
- zfree(&newalias->metric_expr);
- zfree(&newalias->metric_name);
zfree(&newalias->pmu_name);
parse_events_terms__purge(&newalias->terms);
free(newalias);
@@ -337,16 +331,13 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
int num;
char newval[256];
char *long_desc = NULL, *topic = NULL, *unit = NULL, *perpkg = NULL,
- *metric_expr = NULL, *metric_name = NULL, *deprecated = NULL,
- *pmu_name = NULL;
+ *deprecated = NULL, *pmu_name = NULL;
if (pe) {
long_desc = (char *)pe->long_desc;
topic = (char *)pe->topic;
unit = (char *)pe->unit;
perpkg = (char *)pe->perpkg;
- metric_expr = (char *)pe->metric_expr;
- metric_name = (char *)pe->metric_name;
deprecated = (char *)pe->deprecated;
pmu_name = (char *)pe->pmu;
}
@@ -401,8 +392,6 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
perf_pmu__parse_snapshot(alias, dir, name);
}
- alias->metric_expr = metric_expr ? strdup(metric_expr) : NULL;
- alias->metric_name = metric_name ? strdup(metric_name): NULL;
alias->desc = desc ? strdup(desc) : NULL;
alias->long_desc = long_desc ? strdup(long_desc) :
desc ? strdup(desc) : NULL;
@@ -756,9 +745,6 @@ static int pmu_add_cpu_aliases_map_callback(const struct pmu_event *pe,
struct pmu_add_cpu_aliases_map_data *data = vdata;
const char *pname = pe->pmu ? pe->pmu : data->cpu_name;
- if (!pe->name)
- return 0;
-
if (data->pmu->is_uncore && pmu_uncore_alias_match(pname, data->name))
goto new_alias;
@@ -813,12 +799,6 @@ static int pmu_add_sys_aliases_iter_fn(const struct pmu_event *pe,
struct pmu_sys_event_iter_data *idata = data;
struct perf_pmu *pmu = idata->pmu;
- if (!pe->name) {
- if (pe->metric_group || pe->metric_name)
- return 0;
- return -EINVAL;
- }
-
if (!pe->compat || !pe->pmu)
return 0;
@@ -1400,8 +1380,6 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
info->unit = NULL;
info->scale = 0.0;
info->snapshot = false;
- info->metric_expr = NULL;
- info->metric_name = NULL;
list_for_each_entry_safe(term, h, head_terms, list) {
alias = pmu_find_alias(pmu, term);
@@ -1417,8 +1395,6 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
if (alias->per_pkg)
info->per_pkg = true;
- info->metric_expr = alias->metric_expr;
- info->metric_name = alias->metric_name;
list_del_init(&term->list);
parse_events_term__delete(term);
@@ -1634,8 +1610,7 @@ void print_pmu_events(const struct print_callbacks *print_cb, void *print_state)
for (j = 0; j < len; j++) {
const char *name, *alias = NULL, *scale_unit = NULL,
*desc = NULL, *long_desc = NULL,
- *encoding_desc = NULL, *topic = NULL,
- *metric_name = NULL, *metric_expr = NULL;
+ *encoding_desc = NULL, *topic = NULL;
bool deprecated = false;
size_t buf_used;
@@ -1673,8 +1648,6 @@ void print_pmu_events(const struct print_callbacks *print_cb, void *print_state)
buf_used += snprintf(buf + buf_used, sizeof(buf) - buf_used,
"%s/%s/", aliases[j].pmu->name,
aliases[j].event->str) + 1;
- metric_name = aliases[j].event->metric_name;
- metric_expr = aliases[j].event->metric_expr;
deprecated = aliases[j].event->deprecated;
}
print_cb->print_event(print_state,
@@ -1687,9 +1660,7 @@ void print_pmu_events(const struct print_callbacks *print_cb, void *print_state)
"Kernel PMU event",
desc,
long_desc,
- encoding_desc,
- metric_name,
- metric_expr);
+ encoding_desc);
}
if (printed && pager_in_use())
printf("\n");
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 2bdc560f19c7..64c596a358cc 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -132,8 +132,6 @@ extern struct perf_pmu perf_pmu__fake;
struct perf_pmu_info {
const char *unit;
- const char *metric_expr;
- const char *metric_name;
double scale;
bool per_pkg;
bool snapshot;
@@ -187,13 +185,6 @@ struct perf_pmu_alias {
* default.
*/
bool deprecated;
- /**
- * @metric_expr: A metric expression associated with an event. Doing
- * this makes little sense due to scale and unit applying to both.
- */
- char *metric_expr;
- /** @metric_name: A name for the metric. unit applying to both. */
- char *metric_name;
/** @pmu_name: The name copied from struct perf_pmu. */
char *pmu_name;
};
diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c
index 2646ae18d9f9..62e9ea7dcf40 100644
--- a/tools/perf/util/print-events.c
+++ b/tools/perf/util/print-events.c
@@ -101,9 +101,7 @@ void print_tracepoint_events(const struct print_callbacks *print_cb, void *print
"Tracepoint event",
/*desc=*/NULL,
/*long_desc=*/NULL,
- /*encoding_desc=*/NULL,
- /*metric_name=*/NULL,
- /*metric_expr=*/NULL);
+ /*encoding_desc=*/NULL);
}
free(dir_path);
free(evt_namelist);
@@ -195,9 +193,7 @@ void print_sdt_events(const struct print_callbacks *print_cb, void *print_state)
"SDT event",
/*desc=*/NULL,
/*long_desc=*/NULL,
- /*encoding_desc=*/NULL,
- /*metric_name=*/NULL,
- /*metric_expr=*/NULL);
+ /*encoding_desc=*/NULL);
free(evt_name);
}
@@ -255,9 +251,7 @@ int print_hwcache_events(const struct print_callbacks *print_cb, void *print_sta
event_type_descriptors[PERF_TYPE_HW_CACHE],
/*desc=*/NULL,
/*long_desc=*/NULL,
- /*encoding_desc=*/NULL,
- /*metric_name=*/NULL,
- /*metric_expr=*/NULL);
+ /*encoding_desc=*/NULL);
}
strlist__delete(evt_name_list);
return 0;
@@ -277,9 +271,7 @@ void print_tool_events(const struct print_callbacks *print_cb, void *print_state
"Tool event",
/*desc=*/NULL,
/*long_desc=*/NULL,
- /*encoding_desc=*/NULL,
- /*metric_name=*/NULL,
- /*metric_expr=*/NULL);
+ /*encoding_desc=*/NULL);
}
}
@@ -331,9 +323,7 @@ void print_symbol_events(const struct print_callbacks *print_cb, void *print_sta
event_type_descriptors[type],
/*desc=*/NULL,
/*long_desc=*/NULL,
- /*encoding_desc=*/NULL,
- /*metric_name=*/NULL,
- /*metric_expr=*/NULL);
+ /*encoding_desc=*/NULL);
}
strlist__delete(evt_name_list);
}
@@ -364,9 +354,7 @@ void print_events(const struct print_callbacks *print_cb, void *print_state)
event_type_descriptors[PERF_TYPE_RAW],
/*desc=*/NULL,
/*long_desc=*/NULL,
- /*encoding_desc=*/NULL,
- /*metric_name=*/NULL,
- /*metric_expr=*/NULL);
+ /*encoding_desc=*/NULL);
print_cb->print_event(print_state,
/*topic=*/NULL,
@@ -378,9 +366,7 @@ void print_events(const struct print_callbacks *print_cb, void *print_state)
event_type_descriptors[PERF_TYPE_RAW],
"(see 'man perf-list' on how to encode it)",
/*long_desc=*/NULL,
- /*encoding_desc=*/NULL,
- /*metric_name=*/NULL,
- /*metric_expr=*/NULL);
+ /*encoding_desc=*/NULL);
print_cb->print_event(print_state,
/*topic=*/NULL,
@@ -392,9 +378,7 @@ void print_events(const struct print_callbacks *print_cb, void *print_state)
event_type_descriptors[PERF_TYPE_BREAKPOINT],
/*desc=*/NULL,
/*long_desc=*/NULL,
- /*encoding_desc=*/NULL,
- /*metric_name=*/NULL,
- /*metric_expr=*/NULL);
+ /*encoding_desc=*/NULL);
print_tracepoint_events(print_cb, print_state);
diff --git a/tools/perf/util/print-events.h b/tools/perf/util/print-events.h
index c237e53c4487..716dcf4b4859 100644
--- a/tools/perf/util/print-events.h
+++ b/tools/perf/util/print-events.h
@@ -16,8 +16,7 @@ struct print_callbacks {
const char *scale_unit,
bool deprecated, const char *event_type_desc,
const char *desc, const char *long_desc,
- const char *encoding_desc,
- const char *metric_name, const char *metric_expr);
+ const char *encoding_desc);
void (*print_metric)(void *print_state,
const char *group,
const char *name,
--
2.39.1.456.gfc5497dd1b-goog
Metrics are their own unit and these variables held broken metrics
previously and now just hold the value NULL. Remove code that used
these variables.
Reviewed-by: John Garry <[email protected]>
---
tools/perf/builtin-stat.c | 1 -
tools/perf/util/cgroup.c | 1 -
tools/perf/util/evsel.c | 2 -
tools/perf/util/evsel.h | 2 -
tools/perf/util/python.c | 7 ---
tools/perf/util/stat-shadow.c | 112 ----------------------------------
tools/perf/util/stat.h | 1 -
7 files changed, 126 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 9f3e4b257516..5d18a5a6f662 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -2524,7 +2524,6 @@ int cmd_stat(int argc, const char **argv)
&stat_config.metric_events);
zfree(&metrics);
}
- perf_stat__collect_metric_expr(evsel_list);
perf_stat__init_shadow_stats();
if (add_default_attributes())
diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c
index cd978c240e0d..bfb13306d82c 100644
--- a/tools/perf/util/cgroup.c
+++ b/tools/perf/util/cgroup.c
@@ -481,7 +481,6 @@ int evlist__expand_cgroup(struct evlist *evlist, const char *str,
nr_cgroups++;
if (metric_events) {
- perf_stat__collect_metric_expr(tmp_list);
if (metricgroup__copy_metric_events(tmp_list, cgrp,
metric_events,
&orig_metric_events) < 0)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 8550638587e5..a90e998826e0 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -285,8 +285,6 @@ void evsel__init(struct evsel *evsel,
evsel->sample_size = __evsel__sample_size(attr->sample_type);
evsel__calc_id_pos(evsel);
evsel->cmdline_group_boundary = false;
- evsel->metric_expr = NULL;
- evsel->metric_name = NULL;
evsel->metric_events = NULL;
evsel->per_pkg_mask = NULL;
evsel->collect_stat = false;
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index d572be41b960..24cb807ef6ce 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -105,8 +105,6 @@ struct evsel {
* metric fields are similar, but needs more care as they can have
* references to other metric (evsel).
*/
- const char * metric_expr;
- const char * metric_name;
struct evsel **metric_events;
struct evsel *metric_leader;
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 9e5d881b0987..42e8b813d010 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -76,13 +76,6 @@ const char *perf_env__arch(struct perf_env *env __maybe_unused)
return NULL;
}
-/*
- * Add this one here not to drag util/stat-shadow.c
- */
-void perf_stat__collect_metric_expr(struct evlist *evsel_list)
-{
-}
-
/*
* These ones are needed not to drag the PMU bandwagon, jevents generated
* pmu_sys_event_tables, etc and evsel__find_pmu() is used so far just for
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index cadb2df23c87..35ea4813f468 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -346,114 +346,6 @@ static const char *get_ratio_color(enum grc_type type, double ratio)
return color;
}
-static struct evsel *perf_stat__find_event(struct evlist *evsel_list,
- const char *name)
-{
- struct evsel *c2;
-
- evlist__for_each_entry (evsel_list, c2) {
- if (!strcasecmp(c2->name, name) && !c2->collect_stat)
- return c2;
- }
- return NULL;
-}
-
-/* Mark MetricExpr target events and link events using them to them. */
-void perf_stat__collect_metric_expr(struct evlist *evsel_list)
-{
- struct evsel *counter, *leader, **metric_events, *oc;
- bool found;
- struct expr_parse_ctx *ctx;
- struct hashmap_entry *cur;
- size_t bkt;
- int i;
-
- ctx = expr__ctx_new();
- if (!ctx) {
- pr_debug("expr__ctx_new failed");
- return;
- }
- evlist__for_each_entry(evsel_list, counter) {
- bool invalid = false;
-
- leader = evsel__leader(counter);
- if (!counter->metric_expr)
- continue;
-
- expr__ctx_clear(ctx);
- metric_events = counter->metric_events;
- if (!metric_events) {
- if (expr__find_ids(counter->metric_expr,
- counter->name,
- ctx) < 0)
- continue;
-
- metric_events = calloc(sizeof(struct evsel *),
- hashmap__size(ctx->ids) + 1);
- if (!metric_events) {
- expr__ctx_free(ctx);
- return;
- }
- counter->metric_events = metric_events;
- }
-
- i = 0;
- hashmap__for_each_entry(ctx->ids, cur, bkt) {
- const char *metric_name = cur->pkey;
-
- found = false;
- if (leader) {
- /* Search in group */
- for_each_group_member (oc, leader) {
- if (!strcasecmp(oc->name,
- metric_name) &&
- !oc->collect_stat) {
- found = true;
- break;
- }
- }
- }
- if (!found) {
- /* Search ignoring groups */
- oc = perf_stat__find_event(evsel_list,
- metric_name);
- }
- if (!oc) {
- /* Deduping one is good enough to handle duplicated PMUs. */
- static char *printed;
-
- /*
- * Adding events automatically would be difficult, because
- * it would risk creating groups that are not schedulable.
- * perf stat doesn't understand all the scheduling constraints
- * of events. So we ask the user instead to add the missing
- * events.
- */
- if (!printed ||
- strcasecmp(printed, metric_name)) {
- fprintf(stderr,
- "Add %s event to groups to get metric expression for %s\n",
- metric_name,
- counter->name);
- free(printed);
- printed = strdup(metric_name);
- }
- invalid = true;
- continue;
- }
- metric_events[i++] = oc;
- oc->collect_stat = true;
- }
- metric_events[i] = NULL;
- if (invalid) {
- free(metric_events);
- counter->metric_events = NULL;
- counter->metric_expr = NULL;
- }
- }
- expr__ctx_free(ctx);
-}
-
static double runtime_stat_avg(struct runtime_stat *st,
enum stat_type type, int map_idx,
struct runtime_stat_data *rsd)
@@ -1299,10 +1191,6 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
color = NULL;
print_metric(config, ctxp, color, "%8.1f%%", "Core Bound",
core_bound * 100.);
- } else if (evsel->metric_expr) {
- generic_metric(config, evsel->metric_expr, evsel->metric_events, NULL,
- evsel->name, evsel->metric_name, NULL, 1,
- map_idx, out, st);
} else if (runtime_stat_n(st, STAT_NSECS, map_idx, &rsd) != 0) {
char unit = ' ';
char unit_buf[10] = "/sec";
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 499c3bf81333..b1c29156c560 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -257,7 +257,6 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
struct perf_stat_output_ctx *out,
struct rblist *metric_events,
struct runtime_stat *st);
-void perf_stat__collect_metric_expr(struct evlist *);
int evlist__alloc_stats(struct perf_stat_config *config,
struct evlist *evlist, bool alloc_raw);
--
2.39.1.456.gfc5497dd1b-goog
Combine into a single function to simplify, in a later change, writing
metrics separately.
---
tools/perf/pmu-events/jevents.py | 36 +++++++++++++-------------------
1 file changed, 14 insertions(+), 22 deletions(-)
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 4cdbf34b7298..5f8d490c7269 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -19,10 +19,10 @@ _sys_event_tables = []
# JsonEvent. Architecture standard events are in json files in the top
# f'{_args.starting_dir}/{_args.arch}' directory.
_arch_std_events = {}
-# Track whether an events table is currently being defined and needs closing.
-_close_table = False
# Events to write out when the table is closed
_pending_events = []
+# Name of table to be written out
+_pending_events_tblname = None
# Global BigCString shared by all structures.
_bcs = None
# Order specific JsonEvent attributes will be visited.
@@ -378,24 +378,13 @@ def preprocess_arch_std_files(archpath: str) -> None:
_arch_std_events[event.metric_name.lower()] = event
-def print_events_table_prefix(tblname: str) -> None:
- """Called when a new events table is started."""
- global _close_table
- if _close_table:
- raise IOError('Printing table prefix but last table has no suffix')
- _args.output_file.write(f'static const struct compact_pmu_event {tblname}[] = {{\n')
- _close_table = True
-
-
def add_events_table_entries(item: os.DirEntry, topic: str) -> None:
"""Add contents of file to _pending_events table."""
- if not _close_table:
- raise IOError('Table entries missing prefix')
for e in read_json_events(item.path, topic):
_pending_events.append(e)
-def print_events_table_suffix() -> None:
+def print_pending_events() -> None:
"""Optionally close events table."""
def event_cmp_key(j: JsonEvent) -> Tuple[bool, str, str, str, str]:
@@ -407,17 +396,19 @@ def print_events_table_suffix() -> None:
return (j.desc is not None, fix_none(j.topic), fix_none(j.name), fix_none(j.pmu),
fix_none(j.metric_name))
- global _close_table
- if not _close_table:
+ global _pending_events
+ if not _pending_events:
return
- global _pending_events
+ global _pending_events_tblname
+ _args.output_file.write(
+ f'static const struct compact_pmu_event {_pending_events_tblname}[] = {{\n')
+
for event in sorted(_pending_events, key=event_cmp_key):
_args.output_file.write(event.to_c_string())
- _pending_events = []
+ _pending_events = []
_args.output_file.write('};\n\n')
- _close_table = False
def get_topic(topic: str) -> str:
if topic.endswith('metrics.json'):
@@ -455,12 +446,13 @@ def process_one_file(parents: Sequence[str], item: os.DirEntry) -> None:
# model directory, reset topic
if item.is_dir() and is_leaf_dir(item.path):
- print_events_table_suffix()
+ print_pending_events()
tblname = file_name_to_table_name(parents, item.name)
if item.name == 'sys':
_sys_event_tables.append(tblname)
- print_events_table_prefix(tblname)
+ global _pending_events_tblname
+ _pending_events_tblname = tblname
return
# base dir or too deep
@@ -809,7 +801,7 @@ struct compact_pmu_event {
for arch in archs:
arch_path = f'{_args.starting_dir}/{arch}'
ftw(arch_path, [], process_one_file)
- print_events_table_suffix()
+ print_pending_events()
print_mapping_table(archs)
print_system_mapping_table()
--
2.39.1.456.gfc5497dd1b-goog
Add a metrics table that is just a cast from pmu_events_table. This
changes the APIs so that event and metric usage of the underlying
table is different. For the no jevents case the tables are already
separate, later changes will separate the tables for the jevents case.
---
tools/perf/arch/arm64/util/pmu.c | 11 ++++-
tools/perf/pmu-events/empty-pmu-events.c | 21 ++++-----
tools/perf/pmu-events/jevents.py | 21 ++++++---
tools/perf/pmu-events/pmu-events.h | 10 +++--
tools/perf/tests/expand-cgroup.c | 2 +-
tools/perf/tests/parse-metric.c | 2 +-
tools/perf/tests/pmu-events.c | 5 ++-
tools/perf/util/metricgroup.c | 54 ++++++++++++------------
tools/perf/util/metricgroup.h | 2 +-
tools/perf/util/pmu.c | 5 +++
tools/perf/util/pmu.h | 1 +
11 files changed, 78 insertions(+), 56 deletions(-)
diff --git a/tools/perf/arch/arm64/util/pmu.c b/tools/perf/arch/arm64/util/pmu.c
index 801bf52e2ea6..2779840d8896 100644
--- a/tools/perf/arch/arm64/util/pmu.c
+++ b/tools/perf/arch/arm64/util/pmu.c
@@ -22,7 +22,14 @@ static struct perf_pmu *pmu__find_core_pmu(void)
return NULL;
return pmu;
- }
+}
+
+const struct pmu_metrics_table *pmu_metrics_table__find(void)
+{
+ struct perf_pmu *pmu = pmu__find_core_pmu();
+
+ if (pmu)
+ return perf_pmu__find_metrics_table(pmu);
return NULL;
}
@@ -32,7 +39,7 @@ const struct pmu_events_table *pmu_events_table__find(void)
struct perf_pmu *pmu = pmu__find_core_pmu();
if (pmu)
- return perf_pmu__find_table(pmu);
+ return perf_pmu__find_events_table(pmu);
return NULL;
}
diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
index 10bd4943ebf8..a938b74cf487 100644
--- a/tools/perf/pmu-events/empty-pmu-events.c
+++ b/tools/perf/pmu-events/empty-pmu-events.c
@@ -278,13 +278,11 @@ int pmu_events_table_for_each_event(const struct pmu_events_table *table, pmu_ev
return 0;
}
-int pmu_events_table_for_each_metric(const struct pmu_events_table *etable, pmu_metric_iter_fn fn,
- void *data)
+int pmu_metrics_table_for_each_metric(const struct pmu_metrics_table *table, pmu_metric_iter_fn fn,
+ void *data)
{
- struct pmu_metrics_table *table = (struct pmu_metrics_table *)etable;
-
for (const struct pmu_metric *pm = &table->entries[0]; pm->metric_expr; pm++) {
- int ret = fn(pm, etable, data);
+ int ret = fn(pm, table, data);
if (ret)
return ret;
@@ -320,9 +318,9 @@ const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
return table;
}
-const struct pmu_events_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu)
+const struct pmu_metrics_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu)
{
- const struct pmu_events_table *table = NULL;
+ const struct pmu_metrics_table *table = NULL;
char *cpuid = perf_pmu__getcpuid(pmu);
int i;
@@ -340,7 +338,7 @@ const struct pmu_events_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu
break;
if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
- table = (const struct pmu_events_table *)&map->metric_table;
+ table = &map->metric_table;
break;
}
}
@@ -359,13 +357,13 @@ const struct pmu_events_table *find_core_events_table(const char *arch, const ch
return NULL;
}
-const struct pmu_events_table *find_core_metrics_table(const char *arch, const char *cpuid)
+const struct pmu_metrics_table *find_core_metrics_table(const char *arch, const char *cpuid)
{
for (const struct pmu_events_map *tables = &pmu_events_map[0];
tables->arch;
tables++) {
if (!strcmp(tables->arch, arch) && !strcmp_cpuid_str(tables->cpuid, cpuid))
- return (const struct pmu_events_table *)&tables->metric_table;
+ return &tables->metric_table;
}
return NULL;
}
@@ -386,8 +384,7 @@ int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data)
for (const struct pmu_events_map *tables = &pmu_events_map[0];
tables->arch;
tables++) {
- int ret = pmu_events_table_for_each_metric(
- (const struct pmu_events_table *)&tables->metric_table, fn, data);
+ int ret = pmu_metrics_table_for_each_metric(&tables->metric_table, fn, data);
if (ret)
return ret;
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 5f8d490c7269..d83cc94af51f 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -611,10 +611,12 @@ int pmu_events_table_for_each_event(const struct pmu_events_table *table,
return 0;
}
-int pmu_events_table_for_each_metric(const struct pmu_events_table *table,
+int pmu_metrics_table_for_each_metric(const struct pmu_metrics_table *mtable,
pmu_metric_iter_fn fn,
void *data)
{
+ const struct pmu_events_table *table = (const struct pmu_events_table *)mtable;
+
for (size_t i = 0; i < table->length; i++) {
struct pmu_metric pm;
int ret;
@@ -622,7 +624,7 @@ int pmu_events_table_for_each_metric(const struct pmu_events_table *table,
decompress_metric(table->entries[i].offset, &pm);
if (!pm.metric_expr)
continue;
- ret = fn(&pm, table, data);
+ ret = fn(&pm, mtable, data);
if (ret)
return ret;
}
@@ -656,6 +658,11 @@ const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
return table;
}
+const struct pmu_metrics_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu)
+{
+ return (struct pmu_metrics_table *)perf_pmu__find_events_table(pmu);
+}
+
const struct pmu_events_table *find_core_events_table(const char *arch, const char *cpuid)
{
for (const struct pmu_events_map *tables = &pmu_events_map[0];
@@ -667,9 +674,9 @@ const struct pmu_events_table *find_core_events_table(const char *arch, const ch
return NULL;
}
-const struct pmu_events_table *find_core_metrics_table(const char *arch, const char *cpuid)
+const struct pmu_metrics_table *find_core_metrics_table(const char *arch, const char *cpuid)
{
- return (struct pmu_events_table *)find_core_events_table(arch, cpuid);
+ return (struct pmu_metrics_table *)find_core_events_table(arch, cpuid);
}
int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data)
@@ -690,7 +697,8 @@ int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data)
for (const struct pmu_events_map *tables = &pmu_events_map[0];
tables->arch;
tables++) {
- int ret = pmu_events_table_for_each_metric(&tables->table, fn, data);
+ int ret = pmu_metrics_table_for_each_metric(
+ (struct pmu_metrics_table *)&tables->table, fn, data);
if (ret)
return ret;
@@ -727,7 +735,8 @@ int pmu_for_each_sys_metric(pmu_metric_iter_fn fn, void *data)
for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
tables->name;
tables++) {
- int ret = pmu_events_table_for_each_metric(&tables->table, fn, data);
+ int ret = pmu_metrics_table_for_each_metric(
+ (struct pmu_metrics_table *)&tables->table, fn, data);
if (ret)
return ret;
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index dca32979d6a4..b7d4a66b8ad2 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -39,28 +39,30 @@ struct pmu_metric {
};
struct pmu_events_table;
+struct pmu_metrics_table;
typedef int (*pmu_event_iter_fn)(const struct pmu_event *pe,
const struct pmu_events_table *table,
void *data);
typedef int (*pmu_metric_iter_fn)(const struct pmu_metric *pm,
- const struct pmu_events_table *table,
+ const struct pmu_metrics_table *table,
void *data);
int pmu_events_table_for_each_event(const struct pmu_events_table *table, pmu_event_iter_fn fn,
void *data);
-int pmu_events_table_for_each_metric(const struct pmu_events_table *table, pmu_metric_iter_fn fn,
+int pmu_metrics_table_for_each_metric(const struct pmu_metrics_table *table, pmu_metric_iter_fn fn,
void *data);
const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu);
-const struct pmu_events_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu);
+const struct pmu_metrics_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu);
const struct pmu_events_table *find_core_events_table(const char *arch, const char *cpuid);
-const struct pmu_events_table *find_core_metrics_table(const char *arch, const char *cpuid);
+const struct pmu_metrics_table *find_core_metrics_table(const char *arch, const char *cpuid);
int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data);
int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data);
const struct pmu_events_table *find_sys_events_table(const char *name);
+const struct pmu_metrics_table *find_sys_metrics_table(const char *name);
int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data);
int pmu_for_each_sys_metric(pmu_metric_iter_fn fn, void *data);
diff --git a/tools/perf/tests/expand-cgroup.c b/tools/perf/tests/expand-cgroup.c
index 4f3195b84463..672a27f37060 100644
--- a/tools/perf/tests/expand-cgroup.c
+++ b/tools/perf/tests/expand-cgroup.c
@@ -180,7 +180,7 @@ static int expand_metric_events(void)
struct evlist *evlist;
struct rblist metric_events;
const char metric_str[] = "CPI";
- const struct pmu_events_table *pme_test;
+ const struct pmu_metrics_table *pme_test;
evlist = evlist__new();
TEST_ASSERT_VAL("failed to get evlist", evlist);
diff --git a/tools/perf/tests/parse-metric.c b/tools/perf/tests/parse-metric.c
index 6c527cd805fe..9fec6040950c 100644
--- a/tools/perf/tests/parse-metric.c
+++ b/tools/perf/tests/parse-metric.c
@@ -72,7 +72,7 @@ static int __compute_metric(const char *name, struct value *vals,
struct rblist metric_events = {
.nr_entries = 0,
};
- const struct pmu_events_table *pme_test;
+ const struct pmu_metrics_table *pme_test;
struct perf_cpu_map *cpus;
struct runtime_stat st;
struct evlist *evlist;
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index c2b3ada57cbc..9f2e385e0991 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -813,7 +813,8 @@ struct metric {
struct metric_ref metric_ref;
};
-static int test__parsing_callback(const struct pmu_metric *pm, const struct pmu_events_table *table,
+static int test__parsing_callback(const struct pmu_metric *pm,
+ const struct pmu_metrics_table *table,
void *data)
{
int *failures = data;
@@ -995,7 +996,7 @@ static int metric_parse_fake(const char *metric_name, const char *str)
}
static int test__parsing_fake_callback(const struct pmu_metric *pm,
- const struct pmu_events_table *table __maybe_unused,
+ const struct pmu_metrics_table *table __maybe_unused,
void *data __maybe_unused)
{
return metric_parse_fake(pm->metric_name, pm->metric_expr);
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 47fd02af66f1..f3559be95541 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -457,7 +457,7 @@ struct metricgroup_iter_data {
};
static int metricgroup__sys_event_iter(const struct pmu_metric *pm,
- const struct pmu_events_table *table,
+ const struct pmu_metrics_table *table,
void *data)
{
struct metricgroup_iter_data *d = data;
@@ -477,8 +477,8 @@ static int metricgroup__sys_event_iter(const struct pmu_metric *pm,
}
static int metricgroup__add_to_mep_groups_callback(const struct pmu_metric *pm,
- const struct pmu_events_table *table __maybe_unused,
- void *vdata)
+ const struct pmu_metrics_table *table __maybe_unused,
+ void *vdata)
{
struct rblist *groups = vdata;
@@ -488,16 +488,16 @@ static int metricgroup__add_to_mep_groups_callback(const struct pmu_metric *pm,
void metricgroup__print(const struct print_callbacks *print_cb, void *print_state)
{
struct rblist groups;
- const struct pmu_events_table *table;
+ const struct pmu_metrics_table *table;
struct rb_node *node, *next;
rblist__init(&groups);
groups.node_new = mep_new;
groups.node_cmp = mep_cmp;
groups.node_delete = mep_delete;
- table = pmu_events_table__find();
+ table = pmu_metrics_table__find();
if (table) {
- pmu_events_table_for_each_metric(table,
+ pmu_metrics_table_for_each_metric(table,
metricgroup__add_to_mep_groups_callback,
&groups);
}
@@ -765,11 +765,11 @@ struct metricgroup_add_iter_data {
bool system_wide;
struct metric *root_metric;
const struct visited_metric *visited;
- const struct pmu_events_table *table;
+ const struct pmu_metrics_table *table;
};
static bool metricgroup__find_metric(const char *metric,
- const struct pmu_events_table *table,
+ const struct pmu_metrics_table *table,
struct pmu_metric *pm);
static int add_metric(struct list_head *metric_list,
@@ -780,7 +780,7 @@ static int add_metric(struct list_head *metric_list,
bool system_wide,
struct metric *root_metric,
const struct visited_metric *visited,
- const struct pmu_events_table *table);
+ const struct pmu_metrics_table *table);
/**
* resolve_metric - Locate metrics within the root metric and recursively add
@@ -807,7 +807,7 @@ static int resolve_metric(struct list_head *metric_list,
bool system_wide,
struct metric *root_metric,
const struct visited_metric *visited,
- const struct pmu_events_table *table)
+ const struct pmu_metrics_table *table)
{
struct hashmap_entry *cur;
size_t bkt;
@@ -889,7 +889,7 @@ static int __add_metric(struct list_head *metric_list,
bool system_wide,
struct metric *root_metric,
const struct visited_metric *visited,
- const struct pmu_events_table *table)
+ const struct pmu_metrics_table *table)
{
const struct visited_metric *vm;
int ret;
@@ -982,7 +982,7 @@ struct metricgroup__find_metric_data {
};
static int metricgroup__find_metric_callback(const struct pmu_metric *pm,
- const struct pmu_events_table *table __maybe_unused,
+ const struct pmu_metrics_table *table __maybe_unused,
void *vdata)
{
struct metricgroup__find_metric_data *data = vdata;
@@ -995,7 +995,7 @@ static int metricgroup__find_metric_callback(const struct pmu_metric *pm,
}
static bool metricgroup__find_metric(const char *metric,
- const struct pmu_events_table *table,
+ const struct pmu_metrics_table *table,
struct pmu_metric *pm)
{
struct metricgroup__find_metric_data data = {
@@ -1003,7 +1003,7 @@ static bool metricgroup__find_metric(const char *metric,
.pm = pm,
};
- return pmu_events_table_for_each_metric(table, metricgroup__find_metric_callback, &data)
+ return pmu_metrics_table_for_each_metric(table, metricgroup__find_metric_callback, &data)
? true : false;
}
@@ -1015,7 +1015,7 @@ static int add_metric(struct list_head *metric_list,
bool system_wide,
struct metric *root_metric,
const struct visited_metric *visited,
- const struct pmu_events_table *table)
+ const struct pmu_metrics_table *table)
{
int ret = 0;
@@ -1045,8 +1045,8 @@ static int add_metric(struct list_head *metric_list,
}
static int metricgroup__add_metric_sys_event_iter(const struct pmu_metric *pm,
- const struct pmu_events_table *table __maybe_unused,
- void *data)
+ const struct pmu_metrics_table *table __maybe_unused,
+ void *data)
{
struct metricgroup_add_iter_data *d = data;
int ret;
@@ -1105,7 +1105,7 @@ struct metricgroup__add_metric_data {
};
static int metricgroup__add_metric_callback(const struct pmu_metric *pm,
- const struct pmu_events_table *table,
+ const struct pmu_metrics_table *table,
void *vdata)
{
struct metricgroup__add_metric_data *data = vdata;
@@ -1143,7 +1143,7 @@ static int metricgroup__add_metric(const char *metric_name, const char *modifier
const char *user_requested_cpu_list,
bool system_wide,
struct list_head *metric_list,
- const struct pmu_events_table *table)
+ const struct pmu_metrics_table *table)
{
LIST_HEAD(list);
int ret;
@@ -1163,7 +1163,7 @@ static int metricgroup__add_metric(const char *metric_name, const char *modifier
* Iterate over all metrics seeing if metric matches either the
* name or group. When it does add the metric to the list.
*/
- ret = pmu_events_table_for_each_metric(table, metricgroup__add_metric_callback,
+ ret = pmu_metrics_table_for_each_metric(table, metricgroup__add_metric_callback,
&data);
if (ret)
goto out;
@@ -1219,7 +1219,7 @@ static int metricgroup__add_metric(const char *metric_name, const char *modifier
static int metricgroup__add_metric_list(const char *list, bool metric_no_group,
const char *user_requested_cpu_list,
bool system_wide, struct list_head *metric_list,
- const struct pmu_events_table *table)
+ const struct pmu_metrics_table *table)
{
char *list_itr, *list_copy, *metric_name, *modifier;
int ret, count = 0;
@@ -1429,7 +1429,7 @@ static int parse_groups(struct evlist *perf_evlist, const char *str,
bool system_wide,
struct perf_pmu *fake_pmu,
struct rblist *metric_events_list,
- const struct pmu_events_table *table)
+ const struct pmu_metrics_table *table)
{
struct evlist *combined_evlist = NULL;
LIST_HEAD(metric_list);
@@ -1577,7 +1577,7 @@ int metricgroup__parse_groups(struct evlist *perf_evlist,
bool system_wide,
struct rblist *metric_events)
{
- const struct pmu_events_table *table = pmu_events_table__find();
+ const struct pmu_metrics_table *table = pmu_metrics_table__find();
if (!table)
return -EINVAL;
@@ -1588,7 +1588,7 @@ int metricgroup__parse_groups(struct evlist *perf_evlist,
}
int metricgroup__parse_groups_test(struct evlist *evlist,
- const struct pmu_events_table *table,
+ const struct pmu_metrics_table *table,
const char *str,
bool metric_no_group,
bool metric_no_merge,
@@ -1601,7 +1601,7 @@ int metricgroup__parse_groups_test(struct evlist *evlist,
}
static int metricgroup__has_metric_callback(const struct pmu_metric *pm,
- const struct pmu_events_table *table __maybe_unused,
+ const struct pmu_metrics_table *table __maybe_unused,
void *vdata)
{
const char *metric = vdata;
@@ -1617,12 +1617,12 @@ static int metricgroup__has_metric_callback(const struct pmu_metric *pm,
bool metricgroup__has_metric(const char *metric)
{
- const struct pmu_events_table *table = pmu_events_table__find();
+ const struct pmu_metrics_table *table = pmu_metrics_table__find();
if (!table)
return false;
- return pmu_events_table_for_each_metric(table, metricgroup__has_metric_callback,
+ return pmu_metrics_table_for_each_metric(table, metricgroup__has_metric_callback,
(void *)metric) ? true : false;
}
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
index b1f186d0f514..84030321a057 100644
--- a/tools/perf/util/metricgroup.h
+++ b/tools/perf/util/metricgroup.h
@@ -73,7 +73,7 @@ int metricgroup__parse_groups(struct evlist *perf_evlist,
bool system_wide,
struct rblist *metric_events);
int metricgroup__parse_groups_test(struct evlist *evlist,
- const struct pmu_events_table *table,
+ const struct pmu_metrics_table *table,
const char *str,
bool metric_no_group,
bool metric_no_merge,
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index f8c214d8815f..c256b29defad 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -655,6 +655,11 @@ __weak const struct pmu_events_table *pmu_events_table__find(void)
return perf_pmu__find_events_table(NULL);
}
+__weak const struct pmu_metrics_table *pmu_metrics_table__find(void)
+{
+ return perf_pmu__find_metrics_table(NULL);
+}
+
/*
* Suffix must be in form tok_{digits}, or tok{digits}, or same as pmu_name
* to be valid.
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 64c596a358cc..6b770f17eb86 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -231,6 +231,7 @@ void pmu_add_cpu_aliases_table(struct list_head *head, struct perf_pmu *pmu,
char *perf_pmu__getcpuid(struct perf_pmu *pmu);
const struct pmu_events_table *pmu_events_table__find(void);
+const struct pmu_metrics_table *pmu_metrics_table__find(void);
bool pmu_uncore_alias_match(const char *pmu_name, const char *name);
void perf_pmu_free_alias(struct perf_pmu_alias *alias);
--
2.39.1.456.gfc5497dd1b-goog
Turn a perf json event into an event, metric or both. This reduces the
number of events needed to scan to find an event or metric. As events
no longer need the relatively seldom used metric fields, 4 bytes is
saved per event. This reduces the big C string's size by 335kb (14.8%)
on x86.
Note, for the test PMU architecture pme_test_soc_cpu is renamed
pmu_events__test_soc_cpu for consistency with the event vs metric
naming convention.
---
tools/perf/pmu-events/jevents.py | 244 +++++++++++++++++++++++--------
tools/perf/tests/pmu-events.c | 3 +-
2 files changed, 189 insertions(+), 58 deletions(-)
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index d83cc94af51f..627ee817f57f 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -13,28 +13,40 @@ import collections
# Global command line arguments.
_args = None
+# List of regular event tables.
+_event_tables = []
# List of event tables generated from "/sys" directories.
_sys_event_tables = []
+# List of regular metric tables.
+_metric_tables = []
+# List of metric tables generated from "/sys" directories.
+_sys_metric_tables = []
+# Mapping between sys event table names and sys metric table names.
+_sys_event_table_to_metric_table_mapping = {}
# Map from an event name to an architecture standard
# JsonEvent. Architecture standard events are in json files in the top
# f'{_args.starting_dir}/{_args.arch}' directory.
_arch_std_events = {}
# Events to write out when the table is closed
_pending_events = []
-# Name of table to be written out
+# Name of events table to be written out
_pending_events_tblname = None
+# Metrics to write out when the table is closed
+_pending_metrics = []
+# Name of metrics table to be written out
+_pending_metrics_tblname = None
# Global BigCString shared by all structures.
_bcs = None
# Order specific JsonEvent attributes will be visited.
_json_event_attributes = [
# cmp_sevent related attributes.
- 'name', 'pmu', 'topic', 'desc', 'metric_name', 'metric_group',
+ 'name', 'pmu', 'topic', 'desc',
# Seems useful, put it early.
'event',
# Short things in alphabetical order.
'aggr_mode', 'compat', 'deprecated', 'perpkg', 'unit',
# Longer things (the last won't be iterated over during decompress).
- 'metric_constraint', 'metric_expr', 'long_desc'
+ 'long_desc'
]
# Attributes that are in pmu_metric rather than pmu_event.
@@ -52,14 +64,16 @@ def removesuffix(s: str, suffix: str) -> str:
return s[0:-len(suffix)] if s.endswith(suffix) else s
-def file_name_to_table_name(parents: Sequence[str], dirname: str) -> str:
+def file_name_to_table_name(prefix: str, parents: Sequence[str],
+ dirname: str) -> str:
"""Generate a C table name from directory names."""
- tblname = 'pme'
+ tblname = prefix
for p in parents:
tblname += '_' + p
tblname += '_' + dirname
return tblname.replace('-', '_')
+
def c_len(s: str) -> int:
"""Return the length of s a C string
@@ -277,7 +291,7 @@ class JsonEvent:
self.metric_constraint = jd.get('MetricConstraint')
self.metric_expr = None
if 'MetricExpr' in jd:
- self.metric_expr = metric.ParsePerfJson(jd['MetricExpr']).Simplify()
+ self.metric_expr = metric.ParsePerfJson(jd['MetricExpr']).Simplify()
arch_std = jd.get('ArchStdEvent')
if precise and self.desc and '(Precise Event)' not in self.desc:
@@ -326,23 +340,24 @@ class JsonEvent:
s += f'\t{attr} = {value},\n'
return s + '}'
- def build_c_string(self) -> str:
+ def build_c_string(self, metric: bool) -> str:
s = ''
- for attr in _json_event_attributes:
+ for attr in _json_metric_attributes if metric else _json_event_attributes:
x = getattr(self, attr)
- if x and attr == 'metric_expr':
+ if metric and x and attr == 'metric_expr':
# Convert parsed metric expressions into a string. Slashes
# must be doubled in the file.
x = x.ToPerfJson().replace('\\', '\\\\')
s += f'{x}\\000' if x else '\\000'
return s
- def to_c_string(self) -> str:
+ def to_c_string(self, metric: bool) -> str:
"""Representation of the event as a C struct initializer."""
- s = self.build_c_string()
+ s = self.build_c_string(metric)
return f'{{ { _bcs.offsets[s] } }}, /* {s} */\n'
+
@lru_cache(maxsize=None)
def read_json_events(path: str, topic: str) -> Sequence[JsonEvent]:
"""Read json events from the specified file."""
@@ -381,7 +396,10 @@ def preprocess_arch_std_files(archpath: str) -> None:
def add_events_table_entries(item: os.DirEntry, topic: str) -> None:
"""Add contents of file to _pending_events table."""
for e in read_json_events(item.path, topic):
- _pending_events.append(e)
+ if e.name:
+ _pending_events.append(e)
+ if e.metric_name:
+ _pending_metrics.append(e)
def print_pending_events() -> None:
@@ -401,15 +419,54 @@ def print_pending_events() -> None:
return
global _pending_events_tblname
+ if _pending_events_tblname.endswith('_sys'):
+ global _sys_event_tables
+ _sys_event_tables.append(_pending_events_tblname)
+ else:
+ global event_tables
+ _event_tables.append(_pending_events_tblname)
+
_args.output_file.write(
f'static const struct compact_pmu_event {_pending_events_tblname}[] = {{\n')
for event in sorted(_pending_events, key=event_cmp_key):
- _args.output_file.write(event.to_c_string())
+ _args.output_file.write(event.to_c_string(metric=False))
_pending_events = []
_args.output_file.write('};\n\n')
+def print_pending_metrics() -> None:
+ """Optionally close metrics table."""
+
+ def metric_cmp_key(j: JsonEvent) -> Tuple[bool, str, str]:
+ def fix_none(s: Optional[str]) -> str:
+ if s is None:
+ return ''
+ return s
+
+ return (j.desc is not None, fix_none(j.pmu), fix_none(j.metric_name))
+
+ global _pending_metrics
+ if not _pending_metrics:
+ return
+
+ global _pending_metrics_tblname
+ if _pending_metrics_tblname.endswith('_sys'):
+ global _sys_metric_tables
+ _sys_metric_tables.append(_pending_metrics_tblname)
+ else:
+ global metric_tables
+ _metric_tables.append(_pending_metrics_tblname)
+
+ _args.output_file.write(
+ f'static const struct compact_pmu_event {_pending_metrics_tblname}[] = {{\n')
+
+ for metric in sorted(_pending_metrics, key=metric_cmp_key):
+ _args.output_file.write(metric.to_c_string(metric=True))
+ _pending_metrics = []
+
+ _args.output_file.write('};\n\n')
+
def get_topic(topic: str) -> str:
if topic.endswith('metrics.json'):
return 'metrics'
@@ -432,12 +489,13 @@ def preprocess_one_file(parents: Sequence[str], item: os.DirEntry) -> None:
topic = get_topic(item.name)
for event in read_json_events(item.path, topic):
- _bcs.add(event.build_c_string())
+ if event.name:
+ _bcs.add(event.build_c_string(metric=False))
+ if event.metric_name:
+ _bcs.add(event.build_c_string(metric=True))
def process_one_file(parents: Sequence[str], item: os.DirEntry) -> None:
"""Process a JSON file during the main walk."""
- global _sys_event_tables
-
def is_leaf_dir(path: str) -> bool:
for item in os.scandir(path):
if item.is_dir():
@@ -447,12 +505,15 @@ def process_one_file(parents: Sequence[str], item: os.DirEntry) -> None:
# model directory, reset topic
if item.is_dir() and is_leaf_dir(item.path):
print_pending_events()
+ print_pending_metrics()
- tblname = file_name_to_table_name(parents, item.name)
- if item.name == 'sys':
- _sys_event_tables.append(tblname)
global _pending_events_tblname
- _pending_events_tblname = tblname
+ _pending_events_tblname = file_name_to_table_name('pmu_events_', parents, item.name)
+ global _pending_metrics_tblname
+ _pending_metrics_tblname = file_name_to_table_name('pmu_metrics_', parents, item.name)
+
+ if item.name == 'sys':
+ _sys_event_table_to_metric_table_mapping[_pending_events_tblname] = _pending_metrics_tblname
return
# base dir or too deep
@@ -477,6 +538,12 @@ struct pmu_events_table {
size_t length;
};
+/* Struct used to make the PMU metric table implementation opaque to callers. */
+struct pmu_metrics_table {
+ const struct compact_pmu_event *entries;
+ size_t length;
+};
+
/*
* Map a CPU to its table of PMU events. The CPU is identified by the
* cpuid field, which is an arch-specific identifier for the CPU.
@@ -488,7 +555,8 @@ struct pmu_events_table {
struct pmu_events_map {
const char *arch;
const char *cpuid;
- struct pmu_events_table table;
+ struct pmu_events_table event_table;
+ struct pmu_metrics_table metric_table;
};
/*
@@ -502,9 +570,13 @@ const struct pmu_events_map pmu_events_map[] = {
_args.output_file.write("""{
\t.arch = "testarch",
\t.cpuid = "testcpu",
-\t.table = {
-\t.entries = pme_test_soc_cpu,
-\t.length = ARRAY_SIZE(pme_test_soc_cpu),
+\t.event_table = {
+\t\t.entries = pmu_events__test_soc_cpu,
+\t\t.length = ARRAY_SIZE(pmu_events__test_soc_cpu),
+\t},
+\t.metric_table = {
+\t\t.entries = pmu_metrics__test_soc_cpu,
+\t\t.length = ARRAY_SIZE(pmu_metrics__test_soc_cpu),
\t}
},
""")
@@ -515,14 +587,29 @@ const struct pmu_events_map pmu_events_map[] = {
for row in table:
# Skip the first row or any row beginning with #.
if not first and len(row) > 0 and not row[0].startswith('#'):
- tblname = file_name_to_table_name([], row[2].replace('/', '_'))
+ event_tblname = file_name_to_table_name('pmu_events_', [], row[2].replace('/', '_'))
+ if event_tblname in _event_tables:
+ event_size = f'ARRAY_SIZE({event_tblname})'
+ else:
+ event_tblname = 'NULL'
+ event_size = '0'
+ metric_tblname = file_name_to_table_name('pmu_metrics_', [], row[2].replace('/', '_'))
+ if metric_tblname in _metric_tables:
+ metric_size = f'ARRAY_SIZE({metric_tblname})'
+ else:
+ metric_tblname = 'NULL'
+ metric_size = '0'
cpuid = row[0].replace('\\', '\\\\')
_args.output_file.write(f"""{{
\t.arch = "{arch}",
\t.cpuid = "{cpuid}",
-\t.table = {{
-\t\t.entries = {tblname},
-\t\t.length = ARRAY_SIZE({tblname})
+\t.event_table = {{
+\t\t.entries = {event_tblname},
+\t\t.length = {event_size}
+\t}},
+\t.metric_table = {{
+\t\t.entries = {metric_tblname},
+\t\t.length = {metric_size}
\t}}
}},
""")
@@ -531,7 +618,8 @@ const struct pmu_events_map pmu_events_map[] = {
_args.output_file.write("""{
\t.arch = 0,
\t.cpuid = 0,
-\t.table = { 0, 0 },
+\t.event_table = { 0, 0 },
+\t.metric_table = { 0, 0 },
}
};
""")
@@ -542,14 +630,36 @@ def print_system_mapping_table() -> None:
_args.output_file.write("""
struct pmu_sys_events {
\tconst char *name;
-\tstruct pmu_events_table table;
+\tstruct pmu_events_table event_table;
+\tstruct pmu_metrics_table metric_table;
};
static const struct pmu_sys_events pmu_sys_event_tables[] = {
""")
+ printed_metric_tables = []
for tblname in _sys_event_tables:
_args.output_file.write(f"""\t{{
-\t\t.table = {{
+\t\t.event_table = {{
+\t\t\t.entries = {tblname},
+\t\t\t.length = ARRAY_SIZE({tblname})
+\t\t}},""")
+ metric_tblname = _sys_event_table_to_metric_table_mapping[tblname]
+ if metric_tblname in _sys_metric_tables:
+ _args.output_file.write(f"""
+\t\t.metric_table = {{
+\t\t\t.entries = {metric_tblname},
+\t\t\t.length = ARRAY_SIZE({metric_tblname})
+\t\t}},""")
+ printed_metric_tables.append(metric_tblname)
+ _args.output_file.write(f"""
+\t\t.name = \"{tblname}\",
+\t}},
+""")
+ for tblname in _sys_metric_tables:
+ if tblname in printed_metric_tables:
+ continue
+ _args.output_file.write(f"""\t{{
+\t\t.metric_table = {{
\t\t\t.entries = {tblname},
\t\t\t.length = ARRAY_SIZE({tblname})
\t\t}},
@@ -557,7 +667,8 @@ static const struct pmu_sys_events pmu_sys_event_tables[] = {
\t}},
""")
_args.output_file.write("""\t{
-\t\t.table = { 0, 0 }
+\t\t.event_table = { 0, 0 },
+\t\t.metric_table = { 0, 0 },
\t},
};
@@ -566,10 +677,7 @@ static void decompress_event(int offset, struct pmu_event *pe)
\tconst char *p = &big_c_string[offset];
""")
for attr in _json_event_attributes:
- if attr in _json_metric_attributes and 'metric_' in attr:
- _args.output_file.write(f'\n\t/* Skip {attr} */\n')
- else:
- _args.output_file.write(f"""
+ _args.output_file.write(f"""
\tpe->{attr} = (*p == '\\0' ? NULL : p);
""")
if attr == _json_event_attributes[-1]:
@@ -581,14 +689,11 @@ static void decompress_metric(int offset, struct pmu_metric *pm)
{
\tconst char *p = &big_c_string[offset];
""")
- for attr in _json_event_attributes:
- if attr in _json_metric_attributes:
- _args.output_file.write(f"""
+ for attr in _json_metric_attributes:
+ _args.output_file.write(f"""
\tpm->{attr} = (*p == '\\0' ? NULL : p);
""")
- else:
- _args.output_file.write(f'\n\t/* Skip {attr} */\n')
- if attr == _json_event_attributes[-1]:
+ if attr == _json_metric_attributes[-1]:
continue
_args.output_file.write('\twhile (*p++);')
_args.output_file.write("""}
@@ -611,12 +716,10 @@ int pmu_events_table_for_each_event(const struct pmu_events_table *table,
return 0;
}
-int pmu_metrics_table_for_each_metric(const struct pmu_metrics_table *mtable,
+int pmu_metrics_table_for_each_metric(const struct pmu_metrics_table *table,
pmu_metric_iter_fn fn,
void *data)
{
- const struct pmu_events_table *table = (const struct pmu_events_table *)mtable;
-
for (size_t i = 0; i < table->length; i++) {
struct pmu_metric pm;
int ret;
@@ -624,7 +727,7 @@ int pmu_metrics_table_for_each_metric(const struct pmu_metrics_table *mtable,
decompress_metric(table->entries[i].offset, &pm);
if (!pm.metric_expr)
continue;
- ret = fn(&pm, mtable, data);
+ ret = fn(&pm, table, data);
if (ret)
return ret;
}
@@ -650,7 +753,7 @@ const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
break;
if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
- table = &map->table;
+ table = &map->event_table;
break;
}
}
@@ -660,7 +763,29 @@ const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
const struct pmu_metrics_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu)
{
- return (struct pmu_metrics_table *)perf_pmu__find_events_table(pmu);
+ const struct pmu_metrics_table *table = NULL;
+ char *cpuid = perf_pmu__getcpuid(pmu);
+ int i;
+
+ /* on some platforms which uses cpus map, cpuid can be NULL for
+ * PMUs other than CORE PMUs.
+ */
+ if (!cpuid)
+ return NULL;
+
+ i = 0;
+ for (;;) {
+ const struct pmu_events_map *map = &pmu_events_map[i++];
+ if (!map->arch)
+ break;
+
+ if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
+ table = &map->metric_table;
+ break;
+ }
+ }
+ free(cpuid);
+ return table;
}
const struct pmu_events_table *find_core_events_table(const char *arch, const char *cpuid)
@@ -669,14 +794,20 @@ const struct pmu_events_table *find_core_events_table(const char *arch, const ch
tables->arch;
tables++) {
if (!strcmp(tables->arch, arch) && !strcmp_cpuid_str(tables->cpuid, cpuid))
- return &tables->table;
+ return &tables->event_table;
}
return NULL;
}
const struct pmu_metrics_table *find_core_metrics_table(const char *arch, const char *cpuid)
{
- return (struct pmu_metrics_table *)find_core_events_table(arch, cpuid);
+ for (const struct pmu_events_map *tables = &pmu_events_map[0];
+ tables->arch;
+ tables++) {
+ if (!strcmp(tables->arch, arch) && !strcmp_cpuid_str(tables->cpuid, cpuid))
+ return &tables->metric_table;
+ }
+ return NULL;
}
int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data)
@@ -684,7 +815,7 @@ int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data)
for (const struct pmu_events_map *tables = &pmu_events_map[0];
tables->arch;
tables++) {
- int ret = pmu_events_table_for_each_event(&tables->table, fn, data);
+ int ret = pmu_events_table_for_each_event(&tables->event_table, fn, data);
if (ret)
return ret;
@@ -697,8 +828,7 @@ int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data)
for (const struct pmu_events_map *tables = &pmu_events_map[0];
tables->arch;
tables++) {
- int ret = pmu_metrics_table_for_each_metric(
- (struct pmu_metrics_table *)&tables->table, fn, data);
+ int ret = pmu_metrics_table_for_each_metric(&tables->metric_table, fn, data);
if (ret)
return ret;
@@ -712,7 +842,7 @@ const struct pmu_events_table *find_sys_events_table(const char *name)
tables->name;
tables++) {
if (!strcmp(tables->name, name))
- return &tables->table;
+ return &tables->event_table;
}
return NULL;
}
@@ -722,7 +852,7 @@ int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data)
for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
tables->name;
tables++) {
- int ret = pmu_events_table_for_each_event(&tables->table, fn, data);
+ int ret = pmu_events_table_for_each_event(&tables->event_table, fn, data);
if (ret)
return ret;
@@ -735,8 +865,7 @@ int pmu_for_each_sys_metric(pmu_metric_iter_fn fn, void *data)
for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
tables->name;
tables++) {
- int ret = pmu_metrics_table_for_each_metric(
- (struct pmu_metrics_table *)&tables->table, fn, data);
+ int ret = pmu_metrics_table_for_each_metric(&tables->metric_table, fn, data);
if (ret)
return ret;
@@ -811,6 +940,7 @@ struct compact_pmu_event {
arch_path = f'{_args.starting_dir}/{arch}'
ftw(arch_path, [], process_one_file)
print_pending_events()
+ print_pending_metrics()
print_mapping_table(archs)
print_system_mapping_table()
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 9f2e385e0991..962c3c0d53ba 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -469,7 +469,8 @@ static int test__pmu_event_table_sys_callback(const struct pmu_event *pe,
static int test__pmu_event_table(struct test_suite *test __maybe_unused,
int subtest __maybe_unused)
{
- const struct pmu_events_table *sys_event_table = find_sys_events_table("pme_test_soc_sys");
+ const struct pmu_events_table *sys_event_table =
+ find_sys_events_table("pmu_events__test_soc_sys");
const struct pmu_events_table *table = find_core_events_table("testarch", "testcpu");
int map_events = 0, expected_events, err;
--
2.39.1.456.gfc5497dd1b-goog
This allows the set of generated jevents events and metrics be limited
to a subset of the model names. Appropriate if trying to minimize the
binary size where only a set of models are possible.
---
tools/perf/pmu-events/Build | 3 ++-
tools/perf/pmu-events/jevents.py | 14 ++++++++++++++
2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/tools/perf/pmu-events/Build b/tools/perf/pmu-events/Build
index 15b9e8fdbffa..a14de24ecb69 100644
--- a/tools/perf/pmu-events/Build
+++ b/tools/perf/pmu-events/Build
@@ -10,6 +10,7 @@ JEVENTS_PY = pmu-events/jevents.py
ifeq ($(JEVENTS_ARCH),)
JEVENTS_ARCH=$(SRCARCH)
endif
+JEVENTS_MODEL ?= all
#
# Locate/process JSON files in pmu-events/arch/
@@ -23,5 +24,5 @@ $(OUTPUT)pmu-events/pmu-events.c: pmu-events/empty-pmu-events.c
else
$(OUTPUT)pmu-events/pmu-events.c: $(JSON) $(JSON_TEST) $(JEVENTS_PY) pmu-events/metric.py
$(call rule_mkdir)
- $(Q)$(call echo-cmd,gen)$(PYTHON) $(JEVENTS_PY) $(JEVENTS_ARCH) pmu-events/arch $@
+ $(Q)$(call echo-cmd,gen)$(PYTHON) $(JEVENTS_PY) $(JEVENTS_ARCH) $(JEVENTS_MODEL) pmu-events/arch $@
endif
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 627ee817f57f..2bcd07ce609f 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -599,6 +599,8 @@ const struct pmu_events_map pmu_events_map[] = {
else:
metric_tblname = 'NULL'
metric_size = '0'
+ if event_size == '0' and metric_size == '0':
+ continue
cpuid = row[0].replace('\\', '\\\\')
_args.output_file.write(f"""{{
\t.arch = "{arch}",
@@ -888,12 +890,24 @@ def main() -> None:
action: Callable[[Sequence[str], os.DirEntry], None]) -> None:
"""Replicate the directory/file walking behavior of C's file tree walk."""
for item in os.scandir(path):
+ if _args.model != 'all' and item.is_dir():
+ # Check if the model matches one in _args.model.
+ if len(parents) == _args.model.split(',')[0].count('/'):
+ # We're testing the correct directory.
+ item_path = '/'.join(parents) + ('/' if len(parents) > 0 else '') + item.name
+ if 'test' not in item_path and item_path not in _args.model.split(','):
+ continue
action(parents, item)
if item.is_dir():
ftw(item.path, parents + [item.name], action)
ap = argparse.ArgumentParser()
ap.add_argument('arch', help='Architecture name like x86')
+ ap.add_argument('model', help='''Select a model such as skylake to
+reduce the code size. Normally set to "all". For architectures like
+ARM64 with an implementor/model, the model must include the implementor
+such as "arm/cortex-a34".''',
+ default='all')
ap.add_argument(
'starting_dir',
type=dir_path,
--
2.39.1.456.gfc5497dd1b-goog
The #slots literal will return NAN when not on ARM64 which causes a
perf test failure when not on an ARM64 for a JEVENTS_ARCH=all build:
..
10.4: Parsing of PMU event table metrics with fake PMUs : FAILED!
..
Add an is_test boolean so that the failure can be avoided when running
as a test.
Fixes: acef233b7ca7 ("perf pmu: Add #slots literal support for arm64")
---
tools/perf/tests/pmu-events.c | 1 +
tools/perf/util/expr.h | 1 +
tools/perf/util/expr.l | 8 +++++---
3 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 962c3c0d53ba..accf44b3d968 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -950,6 +950,7 @@ static int metric_parse_fake(const char *metric_name, const char *str)
pr_debug("expr__ctx_new failed");
return TEST_FAIL;
}
+ ctx->sctx.is_test = true;
if (expr__find_ids(str, NULL, ctx) < 0) {
pr_err("expr__find_ids failed\n");
return -1;
diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
index 029271540fb0..eaa44b24c555 100644
--- a/tools/perf/util/expr.h
+++ b/tools/perf/util/expr.h
@@ -9,6 +9,7 @@ struct expr_scanner_ctx {
char *user_requested_cpu_list;
int runtime;
bool system_wide;
+ bool is_test;
};
struct expr_parse_ctx {
diff --git a/tools/perf/util/expr.l b/tools/perf/util/expr.l
index 0168a9637330..72ff4f3d6d4b 100644
--- a/tools/perf/util/expr.l
+++ b/tools/perf/util/expr.l
@@ -84,9 +84,11 @@ static int literal(yyscan_t scanner, const struct expr_scanner_ctx *sctx)
YYSTYPE *yylval = expr_get_lval(scanner);
yylval->num = expr__get_literal(expr_get_text(scanner), sctx);
- if (isnan(yylval->num))
- return EXPR_ERROR;
-
+ if (isnan(yylval->num)) {
+ if (!sctx->is_test)
+ return EXPR_ERROR;
+ yylval->num = 1;
+ }
return LITERAL;
}
%}
--
2.39.1.456.gfc5497dd1b-goog
A character encoding issue added a "3D" character that breaks the
metrics test.
Fixes: 40769665b63d ("perf jevents: Parse metrics during conversion")
---
tools/perf/pmu-events/metric_test.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/pmu-events/metric_test.py b/tools/perf/pmu-events/metric_test.py
index ced5998bd827..e4c792428277 100644
--- a/tools/perf/pmu-events/metric_test.py
+++ b/tools/perf/pmu-events/metric_test.py
@@ -89,8 +89,8 @@ class TestMetricExpressions(unittest.TestCase):
after = r'min((a + b if c > 1 else c + d), e + f)'
self.assertEqual(ParsePerfJson(before).ToPerfJson(), after)
- before =3D r'a if b else c if d else e'
- after =3D r'(a if b else (c if d else e))'
+ before = r'a if b else c if d else e'
+ after = r'(a if b else (c if d else e))'
self.assertEqual(ParsePerfJson(before).ToPerfJson(), after)
def test_ToPython(self):
--
2.39.1.456.gfc5497dd1b-goog
Add quiet_cmd_test so that:
$(Q)$(call echo-cmd,test)
will print:
TEST <path>
This is useful for executing compile-time tests similar to what
happens for fortify tests in the kernel's lib directory.
---
tools/build/Makefile.build | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
index 715092fc6a23..89430338a3d9 100644
--- a/tools/build/Makefile.build
+++ b/tools/build/Makefile.build
@@ -53,6 +53,7 @@ build-file := $(dir)/Build
quiet_cmd_flex = FLEX $@
quiet_cmd_bison = BISON $@
+quiet_cmd_test = TEST $@
# Create directory unless it exists
quiet_cmd_mkdir = MKDIR $(dir $@)
--
2.39.1.456.gfc5497dd1b-goog
Add a target that generates a log file for running metric_test.py and
make this a dependency on generating pmu-events.c. The log output is
displayed if the test fails like (the test was modified to make it
fail):
```
TEST /tmp/perf/pmu-events/metric_test.log
F......
======================================================================
FAIL: test_Brackets (__main__.TestMetricExpressions)
----------------------------------------------------------------------
Traceback (most recent call last):
File "tools/perf/pmu-events/metric_test.py", line 33, in test_Brackets
self.assertEqual((a * b + c).ToPerfJson(), 'a * b + d')
AssertionError: 'a * b + c' != 'a * b + d'
- a * b + c
? ^
+ a * b + d
? ^
----------------------------------------------------------------------
Ran 7 tests in 0.004s
FAILED (failures=1)
make[3]: *** [pmu-events/Build:32: /tmp/perf/pmu-events/metric_test.log] Error 1
```
However, normal execution will just show the TEST line.
This is roughly modeled on fortify testing in the kernel lib directory.
Modify metric_test.py so that it is executable. This is necessary when
PYTHON isn't specified in the build, the normal case.
Use variables to make the paths to files clearer and more consistent.
---
tools/perf/pmu-events/Build | 13 +++++++++++--
tools/perf/pmu-events/metric_test.py | 1 +
2 files changed, 12 insertions(+), 2 deletions(-)
mode change 100644 => 100755 tools/perf/pmu-events/metric_test.py
diff --git a/tools/perf/pmu-events/Build b/tools/perf/pmu-events/Build
index a14de24ecb69..150765f2baee 100644
--- a/tools/perf/pmu-events/Build
+++ b/tools/perf/pmu-events/Build
@@ -6,6 +6,11 @@ JDIR_TEST = pmu-events/arch/test
JSON_TEST = $(shell [ -d $(JDIR_TEST) ] && \
find $(JDIR_TEST) -name '*.json')
JEVENTS_PY = pmu-events/jevents.py
+METRIC_PY = pmu-events/metric.py
+METRIC_TEST_PY = pmu-events/metric_test.py
+EMPTY_PMU_EVENTS_C = pmu-events/empty-pmu-events.c
+PMU_EVENTS_C = $(OUTPUT)pmu-events/pmu-events.c
+METRIC_TEST_LOG = $(OUTPUT)pmu-events/metric_test.log
ifeq ($(JEVENTS_ARCH),)
JEVENTS_ARCH=$(SRCARCH)
@@ -18,11 +23,15 @@ JEVENTS_MODEL ?= all
#
ifeq ($(NO_JEVENTS),1)
-$(OUTPUT)pmu-events/pmu-events.c: pmu-events/empty-pmu-events.c
+$(PMU_EVENTS_C): $(EMPTY_PMU_EVENTS_C)
$(call rule_mkdir)
$(Q)$(call echo-cmd,gen)cp $< $@
else
-$(OUTPUT)pmu-events/pmu-events.c: $(JSON) $(JSON_TEST) $(JEVENTS_PY) pmu-events/metric.py
+$(METRIC_TEST_LOG): $(METRIC_TEST_PY) $(METRIC_PY)
+ $(call rule_mkdir)
+ $(Q)$(call echo-cmd,test)$(PYTHON) $< 2> $@ || (cat $@ && false)
+
+$(PMU_EVENTS_C): $(JSON) $(JSON_TEST) $(JEVENTS_PY) $(METRIC_PY) $(METRIC_TEST_LOG)
$(call rule_mkdir)
$(Q)$(call echo-cmd,gen)$(PYTHON) $(JEVENTS_PY) $(JEVENTS_ARCH) $(JEVENTS_MODEL) pmu-events/arch $@
endif
diff --git a/tools/perf/pmu-events/metric_test.py b/tools/perf/pmu-events/metric_test.py
old mode 100644
new mode 100755
index e4c792428277..40a3c7d8b2bc
--- a/tools/perf/pmu-events/metric_test.py
+++ b/tools/perf/pmu-events/metric_test.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
import unittest
from metric import Constant
--
2.39.1.456.gfc5497dd1b-goog
On 26/01/2023 23:36, Ian Rogers wrote:
> This allows the set of generated jevents events and metrics be limited
> to a subset of the model names. Appropriate if trying to minimize the
> binary size where only a set of models are possible.
No SoB or RB tags at all.
Thanks,
John
> ---
> tools/perf/pmu-events/Build | 3 ++-
> tools/perf/pmu-events/jevents.py | 14 ++++++++++++++
> 2 files changed, 16 insertions(+), 1 deletion(-)
On 26/01/2023 23:36, Ian Rogers wrote:
> The #slots literal will return NAN when not on ARM64 which causes a
> perf test failure when not on an ARM64 for a JEVENTS_ARCH=all build:
> ..
> 10.4: Parsing of PMU event table metrics with fake PMUs : FAILED!
> ..
> Add an is_test boolean so that the failure can be avoided when running
> as a test.
>
> Fixes: acef233b7ca7 ("perf pmu: Add #slots literal support for arm64")
> ---
Again, no SoB here.
For me, though:
Reviewed-by: John Garry <[email protected]>
On 26/01/2023 23:36, Ian Rogers wrote:
Hi Ian,
At a glance, none of this series has your Signed-off-by tag..
Thanks,
John
> Add an optimization to jevents using the metric code, rewrite metrics
> in terms of each other in order to minimize size and improve
> readability. For example, on Power8
> other_stall_cpi is rewritten from:
> "PM_CMPLU_STALL / PM_RUN_INST_CMPL - PM_CMPLU_STALL_BRU_CRU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_FXU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_VSU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_LSU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_NTCG_FLUSH / PM_RUN_INST_CMPL - PM_CMPLU_STALL_NO_NTF / PM_RUN_INST_CMPL"
> to:
> "stall_cpi - bru_cru_stall_cpi - fxu_stall_cpi - vsu_stall_cpi - lsu_stall_cpi - ntcg_flush_cpi - no_ntf_stall_cpi"
> Which more closely matches the definition on Power9.
>
> A limitation of the substitutions are that they depend on strict
> equality and the shape of the tree. This means that for "a + b + c"
> then a substitution of "a + b" will succeed while "b + c" will fail
> (the LHS for "+ c" is "a + b" not just "b").
>
> Separate out the events and metrics in the pmu-events tables saving
> 14.8% in the table size while making it that metrics no longer need to
> iterate over all events and vice versa. These changes remove evsel's
> direct metric support as the pmu_event no longer has a metric to
> populate it. This is a minor issue as the code wasn't working
> properly, metrics for this are rare and can still be properly ran
> using '-M'.
>
> Add an ability to just build certain models into the jevents generated
> pmu-metrics.c code. This functionality is appropriate for operating
> systems like ChromeOS, that aim to minimize binary size and know all
> the target CPU models.
On 27/01/2023 13:48, Ian Rogers wrote:
> On Fri, Jan 27, 2023, 5:20 AM John Garry <[email protected]
> <mailto:[email protected]>> wrote:
>
> On 26/01/2023 23:36, Ian Rogers wrote:
>
> Hi Ian,
>
> At a glance, none of this series has your Signed-off-by tag..
>
> Thanks,
> John
>
>
>
> Thanks John, will fix. Is there anything else?
Not yet, but I am just trying to get through it - there's a lot here...
Thanks,
John
On 27/01/2023 13:48, Ian Rogers wrote:
> On Fri, Jan 27, 2023, 5:20 AM John Garry <[email protected]
> <mailto:[email protected]>> wrote:
>
> On 26/01/2023 23:36, Ian Rogers wrote:
>
> Hi Ian,
>
> At a glance, none of this series has your Signed-off-by tag..
>
> Thanks,
> John
>
>
>
> Thanks John, will fix. Is there anything else?
Do you think that pmu-events/__pycache__/metric.cpython-36.pyc should be
deleted with a make clean? I would expect stuff like this to be deleted
(with a clean), but I am not sure if we have a policy on this (pyc files)
Thanks,
John
On 26/01/2023 23:36, Ian Rogers wrote:
> @@ -660,7 +763,29 @@ const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
>
> const struct pmu_metrics_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu)
> {
> - return (struct pmu_metrics_table *)perf_pmu__find_events_table(pmu);
> + const struct pmu_metrics_table *table = NULL;
> + char *cpuid = perf_pmu__getcpuid(pmu);
> + int i;
> +
> + /* on some platforms which uses cpus map, cpuid can be NULL for
> + * PMUs other than CORE PMUs.
> + */
> + if (!cpuid)
> + return NULL;
> +
> + i = 0;
> + for (;;) {
> + const struct pmu_events_map *map = &pmu_events_map[i++];
> + if (!map->arch)
> + break;
> +
> + if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
> + table = &map->metric_table;
> + break;
> + }
> + }
> + free(cpuid);
> + return table;
> }
This is almost identical to generated perf_pmu__find_events_table(),
except we return a pmu_metrics_table * (instead of a pmu_events_table *)
and also return the metric table member (instead of event table). But
the definitions are:
/* Struct used to make the PMU event table implementation opaque to
callers. */
struct pmu_events_table {
const struct compact_pmu_event *entries;
size_t length;
};
/* Struct used to make the PMU metric table implementation opaque to
callers. */
struct pmu_metrics_table {
const struct compact_pmu_event *entries;
size_t length;
};
Those structs are defined to be the same thing, so I am failing to see
the point in a) separate structure types b) why so much duplication
As for b), I know that they are generated and the python code may be
simpler this way (is it?), but still...
Thanks,
John
On Mon, Jan 30, 2023 at 8:07 AM John Garry <[email protected]> wrote:
>
> On 26/01/2023 23:36, Ian Rogers wrote:
> > @@ -660,7 +763,29 @@ const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
> >
> > const struct pmu_metrics_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu)
> > {
> > - return (struct pmu_metrics_table *)perf_pmu__find_events_table(pmu);
> > + const struct pmu_metrics_table *table = NULL;
> > + char *cpuid = perf_pmu__getcpuid(pmu);
> > + int i;
> > +
> > + /* on some platforms which uses cpus map, cpuid can be NULL for
> > + * PMUs other than CORE PMUs.
> > + */
> > + if (!cpuid)
> > + return NULL;
> > +
> > + i = 0;
> > + for (;;) {
> > + const struct pmu_events_map *map = &pmu_events_map[i++];
> > + if (!map->arch)
> > + break;
> > +
> > + if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
> > + table = &map->metric_table;
> > + break;
> > + }
> > + }
> > + free(cpuid);
> > + return table;
> > }
>
> This is almost identical to generated perf_pmu__find_events_table(),
> except we return a pmu_metrics_table * (instead of a pmu_events_table *)
> and also return the metric table member (instead of event table). But
> the definitions are:
>
> /* Struct used to make the PMU event table implementation opaque to
> callers. */
> struct pmu_events_table {
> const struct compact_pmu_event *entries;
> size_t length;
> };
>
> /* Struct used to make the PMU metric table implementation opaque to
> callers. */
> struct pmu_metrics_table {
> const struct compact_pmu_event *entries;
> size_t length;
> };
>
> Those structs are defined to be the same thing, so I am failing to see
> the point in a) separate structure types b) why so much duplication
>
> As for b), I know that they are generated and the python code may be
> simpler this way (is it?), but still...
Agreed. The point is to separate the two tables for the typing at the
API layer, internally the representation is the same. When we decode
one we get a pmu_event and the other we get a pmu_metric, so we don't
want to allow the tables to be switched - hence two types.
Thanks,
Ian
> Thanks,
> John
On Mon, Jan 30, 2023 at 7:22 AM John Garry <[email protected]> wrote:
>
> On 27/01/2023 13:48, Ian Rogers wrote:
> > On Fri, Jan 27, 2023, 5:20 AM John Garry <[email protected]
> > <mailto:[email protected]>> wrote:
> >
> > On 26/01/2023 23:36, Ian Rogers wrote:
> >
> > Hi Ian,
> >
> > At a glance, none of this series has your Signed-off-by tag..
> >
> > Thanks,
> > John
> >
> >
> >
> > Thanks John, will fix. Is there anything else?
>
> Do you think that pmu-events/__pycache__/metric.cpython-36.pyc should be
> deleted with a make clean? I would expect stuff like this to be deleted
> (with a clean), but I am not sure if we have a policy on this (pyc files)
Should they be covered by the existing clean target?
https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/tree/tools/perf/Makefile.perf?h=perf/core#n1102
Thanks,
Ian
> Thanks,
> John
On 31/01/2023 00:39, Ian Rogers wrote:
>>> Thanks John, will fix. Is there anything else?
>> Do you think that pmu-events/__pycache__/metric.cpython-36.pyc should be
>> deleted with a make clean? I would expect stuff like this to be deleted
>> (with a clean), but I am not sure if we have a policy on this (pyc files)
> Should they be covered by the existing clean target?
> https://urldefense.com/v3/__https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/tree/tools/perf/Makefile.perf?h=perf*core*n1102__;LyM!!ACWV5N9M2RV99hQ!IqhXlW8RwYRwSK4Gq_djcf1C7Zjp_q6OmUE8Kb6Cei9CvHFBoJWyMfT3IR8RHRS8iKkd7ZlvE4mvil-4Aos$
Well it didn't seem to work for me and I was using acme tmp.perf/core
branch.
Thanks,
John
On 30/01/2023 22:54, Ian Rogers wrote:
>> This is almost identical to generated perf_pmu__find_events_table(),
>> except we return a pmu_metrics_table * (instead of a pmu_events_table *)
>> and also return the metric table member (instead of event table). But
>> the definitions are:
>>
>> /* Struct used to make the PMU event table implementation opaque to
>> callers. */
>> struct pmu_events_table {
>> const struct compact_pmu_event *entries;
>> size_t length;
>> };
>>
>> /* Struct used to make the PMU metric table implementation opaque to
>> callers. */
>> struct pmu_metrics_table {
>> const struct compact_pmu_event *entries;
>> size_t length;
>> };
>>
>> Those structs are defined to be the same thing, so I am failing to see
>> the point in a) separate structure types b) why so much duplication
>>
>> As for b), I know that they are generated and the python code may be
>> simpler this way (is it?), but still...
> Agreed. The point is to separate the two tables for the typing at the
> API layer, internally the representation is the same. When we decode
> one we get a pmu_event and the other we get a pmu_metric, so we don't
> want to allow the tables to be switched - hence two types.
I do see the advantage of stronger types but it does seem a bit odd to
achieve it like this.
Thanks,
John
Patchset looks goot to me
Reviewed-By: Kajol Jain<[email protected]>
On 1/27/23 05:06, Ian Rogers wrote:
> Add an optimization to jevents using the metric code, rewrite metrics
> in terms of each other in order to minimize size and improve
> readability. For example, on Power8
> other_stall_cpi is rewritten from:
> "PM_CMPLU_STALL / PM_RUN_INST_CMPL - PM_CMPLU_STALL_BRU_CRU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_FXU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_VSU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_LSU / PM_RUN_INST_CMPL - PM_CMPLU_STALL_NTCG_FLUSH / PM_RUN_INST_CMPL - PM_CMPLU_STALL_NO_NTF / PM_RUN_INST_CMPL"
> to:
> "stall_cpi - bru_cru_stall_cpi - fxu_stall_cpi - vsu_stall_cpi - lsu_stall_cpi - ntcg_flush_cpi - no_ntf_stall_cpi"
> Which more closely matches the definition on Power9.
>
> A limitation of the substitutions are that they depend on strict
> equality and the shape of the tree. This means that for "a + b + c"
> then a substitution of "a + b" will succeed while "b + c" will fail
> (the LHS for "+ c" is "a + b" not just "b").
>
> Separate out the events and metrics in the pmu-events tables saving
> 14.8% in the table size while making it that metrics no longer need to
> iterate over all events and vice versa. These changes remove evsel's
> direct metric support as the pmu_event no longer has a metric to
> populate it. This is a minor issue as the code wasn't working
> properly, metrics for this are rare and can still be properly ran
> using '-M'.
>
> Add an ability to just build certain models into the jevents generated
> pmu-metrics.c code. This functionality is appropriate for operating
> systems like ChromeOS, that aim to minimize binary size and know all
> the target CPU models.
>
> v5. s/list/List/ in a type annotation to fix Python 3.6 as reported by
> John Garry <[email protected]>. Fix a bug in metric_test.py
> where a bad character was imported. To avoid similar regressions,
> run metric_test.py before generating pmu-events.c.
> v4. Better support the implementor/model style --model argument for
> jevents.py. Add #slots test fix. On some patches add reviewed-by
> John Garry <[email protected]> and Kajol
> Jain<[email protected]>.
> v3. Rebase an incorporate review comments from John Garry
> <[email protected]>, in particular breaking apart patch 4
> into 3 patches. The no jevents breakage and then later fix is
> avoided in this series too.
> v2. Rebase. Modify the code that skips rewriting a metric with the
> same name with itself, to make the name check case insensitive.
>
> Ian Rogers (15):
> perf jevents metric: Correct Function equality
> perf jevents metric: Add ability to rewrite metrics in terms of others
> perf jevents: Rewrite metrics in the same file with each other
> perf pmu-events: Add separate metric from pmu_event
> perf pmu-events: Separate the metrics from events for no jevents
> perf pmu-events: Remove now unused event and metric variables
> perf stat: Remove evsel metric_name/expr
> perf jevents: Combine table prefix and suffix writing
> perf pmu-events: Introduce pmu_metrics_table
> perf jevents: Generate metrics and events as separate tables
> perf jevents: Add model list option
> perf pmu-events: Fix testing with JEVENTS_ARCH=all
> perf jevents: Correct bad character encoding
> tools build: Add test echo-cmd
> perf jevents: Run metric_test.py at compile-time
>
> tools/build/Makefile.build | 1 +
> tools/perf/arch/arm64/util/pmu.c | 11 +-
> tools/perf/arch/powerpc/util/header.c | 4 +-
> tools/perf/builtin-list.c | 20 +-
> tools/perf/builtin-stat.c | 1 -
> tools/perf/pmu-events/Build | 16 +-
> tools/perf/pmu-events/empty-pmu-events.c | 108 ++++++-
> tools/perf/pmu-events/jevents.py | 357 +++++++++++++++++++----
> tools/perf/pmu-events/metric.py | 79 ++++-
> tools/perf/pmu-events/metric_test.py | 15 +-
> tools/perf/pmu-events/pmu-events.h | 26 +-
> tools/perf/tests/expand-cgroup.c | 4 +-
> tools/perf/tests/parse-metric.c | 4 +-
> tools/perf/tests/pmu-events.c | 69 ++---
> tools/perf/util/cgroup.c | 1 -
> tools/perf/util/evsel.c | 2 -
> tools/perf/util/evsel.h | 2 -
> tools/perf/util/expr.h | 1 +
> tools/perf/util/expr.l | 8 +-
> tools/perf/util/metricgroup.c | 207 +++++++------
> tools/perf/util/metricgroup.h | 4 +-
> tools/perf/util/parse-events.c | 2 -
> tools/perf/util/pmu.c | 44 +--
> tools/perf/util/pmu.h | 10 +-
> tools/perf/util/print-events.c | 32 +-
> tools/perf/util/print-events.h | 3 +-
> tools/perf/util/python.c | 7 -
> tools/perf/util/stat-shadow.c | 112 -------
> tools/perf/util/stat.h | 1 -
> 29 files changed, 681 insertions(+), 470 deletions(-)
> mode change 100644 => 100755 tools/perf/pmu-events/metric_test.py
>
Em Thu, Jan 26, 2023 at 03:36:45PM -0800, Ian Rogers escreveu:
> Add a target that generates a log file for running metric_test.py and
> make this a dependency on generating pmu-events.c. The log output is
> displayed if the test fails like (the test was modified to make it
> fail):
>
> ```
> TEST /tmp/perf/pmu-events/metric_test.log
> F......
> ======================================================================
> FAIL: test_Brackets (__main__.TestMetricExpressions)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File "tools/perf/pmu-events/metric_test.py", line 33, in test_Brackets
> self.assertEqual((a * b + c).ToPerfJson(), 'a * b + d')
> AssertionError: 'a * b + c' != 'a * b + d'
> - a * b + c
> ? ^
> + a * b + d
Added this:
diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index 05806ecfc33c12a1..f533e76fb48002b7 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -38,6 +38,7 @@ arch/*/include/generated/
trace/beauty/generated/
pmu-events/pmu-events.c
pmu-events/jevents
+pmu-events/metric_test.log
feature/
libapi/
libbpf/
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index b7d9c42062300d04..bac9272682b759e9 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -1103,6 +1103,7 @@ clean:: $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBSYMBOL)-clean $(
$(OUTPUT)util/intel-pt-decoder/inat-tables.c \
$(OUTPUT)tests/llvm-src-{base,kbuild,prologue,relocation}.c \
$(OUTPUT)pmu-events/pmu-events.c \
+ $(OUTPUT)pmu-events/metric_test.log \
$(OUTPUT)$(fadvise_advice_array) \
$(OUTPUT)$(fsconfig_arrays) \
$(OUTPUT)$(fsmount_arrays) \
On Fri, Feb 3, 2023 at 12:15 PM Arnaldo Carvalho de Melo
<[email protected]> wrote:
>
> Em Thu, Jan 26, 2023 at 03:36:45PM -0800, Ian Rogers escreveu:
> > Add a target that generates a log file for running metric_test.py and
> > make this a dependency on generating pmu-events.c. The log output is
> > displayed if the test fails like (the test was modified to make it
> > fail):
> >
> > ```
> > TEST /tmp/perf/pmu-events/metric_test.log
> > F......
> > ======================================================================
> > FAIL: test_Brackets (__main__.TestMetricExpressions)
> > ----------------------------------------------------------------------
> > Traceback (most recent call last):
> > File "tools/perf/pmu-events/metric_test.py", line 33, in test_Brackets
> > self.assertEqual((a * b + c).ToPerfJson(), 'a * b + d')
> > AssertionError: 'a * b + c' != 'a * b + d'
> > - a * b + c
> > ? ^
> > + a * b + d
>
> Added this:
>
> diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
> index 05806ecfc33c12a1..f533e76fb48002b7 100644
> --- a/tools/perf/.gitignore
> +++ b/tools/perf/.gitignore
> @@ -38,6 +38,7 @@ arch/*/include/generated/
> trace/beauty/generated/
> pmu-events/pmu-events.c
> pmu-events/jevents
> +pmu-events/metric_test.log
> feature/
> libapi/
> libbpf/
> diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> index b7d9c42062300d04..bac9272682b759e9 100644
> --- a/tools/perf/Makefile.perf
> +++ b/tools/perf/Makefile.perf
> @@ -1103,6 +1103,7 @@ clean:: $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBSYMBOL)-clean $(
> $(OUTPUT)util/intel-pt-decoder/inat-tables.c \
> $(OUTPUT)tests/llvm-src-{base,kbuild,prologue,relocation}.c \
> $(OUTPUT)pmu-events/pmu-events.c \
> + $(OUTPUT)pmu-events/metric_test.log \
> $(OUTPUT)$(fadvise_advice_array) \
> $(OUTPUT)$(fsconfig_arrays) \
> $(OUTPUT)$(fsmount_arrays) \
Acked, thanks!
Ian