2020-08-13 07:12:53

by Jin Yao

[permalink] [raw]
Subject: [PATCH v2] perf parse-events: Set exclude_guest for user-space counting

Currently if we run 'perf record -e cycles:u', exclude_guest is 0.

But it doesn't make sense that we request for user-space counting
but we also get the guest report.

To keep perf semantics consistent and clear, this patch sets
exclude_guest for user-space counting.

Before:

perf record -e cycles:u ./div
perf evlist -v
cycles:u: ..., exclude_kernel: 1, exclude_hv: 1, ...

After:

perf record -e cycles:u ./div
perf evlist -v
cycles:u: ..., exclude_kernel: 1, exclude_hv: 1, exclude_guest: 1, ...

perf test 6
6: Parse event definition strings : Ok

Signed-off-by: Jin Yao <[email protected]>
---
v2:
---
Fix the 'perf test 6' failure.

tools/perf/tests/parse-events.c | 4 ++--
tools/perf/util/parse-events.c | 2 ++
2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 7f9f87a470c3..aae0fd9045c1 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -719,7 +719,7 @@ static int test__group2(struct evlist *evlist)
TEST_ASSERT_VAL("wrong exclude_user", !evsel->core.attr.exclude_user);
TEST_ASSERT_VAL("wrong exclude_kernel", !evsel->core.attr.exclude_kernel);
TEST_ASSERT_VAL("wrong exclude_hv", evsel->core.attr.exclude_hv);
- TEST_ASSERT_VAL("wrong exclude guest", !evsel->core.attr.exclude_guest);
+ TEST_ASSERT_VAL("wrong exclude guest", evsel->core.attr.exclude_guest);
TEST_ASSERT_VAL("wrong exclude host", !evsel->core.attr.exclude_host);
TEST_ASSERT_VAL("wrong precise_ip", !evsel->core.attr.precise_ip);
TEST_ASSERT_VAL("wrong leader", evsel__is_group_leader(evsel));
@@ -842,7 +842,7 @@ static int test__group3(struct evlist *evlist __maybe_unused)
TEST_ASSERT_VAL("wrong exclude_user", !evsel->core.attr.exclude_user);
TEST_ASSERT_VAL("wrong exclude_kernel", evsel->core.attr.exclude_kernel);
TEST_ASSERT_VAL("wrong exclude_hv", evsel->core.attr.exclude_hv);
- TEST_ASSERT_VAL("wrong exclude guest", !evsel->core.attr.exclude_guest);
+ TEST_ASSERT_VAL("wrong exclude guest", evsel->core.attr.exclude_guest);
TEST_ASSERT_VAL("wrong exclude host", !evsel->core.attr.exclude_host);
TEST_ASSERT_VAL("wrong precise_ip", !evsel->core.attr.precise_ip);
TEST_ASSERT_VAL("wrong leader", evsel__is_group_leader(evsel));
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 9f7260e69113..4d809f1fe269 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1794,6 +1794,8 @@ static int get_event_modifier(struct event_modifier *mod, char *str,
if (*str == 'u') {
if (!exclude)
exclude = eu = ek = eh = 1;
+ if (!exclude_GH)
+ eG = 1;
eu = 0;
} else if (*str == 'k') {
if (!exclude)
--
2.17.1