2018-01-03 20:20:17

by Liang, Kan

[permalink] [raw]
Subject: RE: [PATCH V2] perf script: add script to profile and resolve physical mem type

Hi Stephane and Andi,

Could you please review the script?

If it's OK for you, could you please Ack/Review this?

Thanks,
Kan

>
> From: Kan Liang <[email protected]>
>
> There could be different types of memory in the system. E.g normal
> System Memory, Persistent Memory. To understand how the workload maps
> to
> those memories, it's important to know the I/O statistics of them.
> Perf can collect physical addresses, but those are raw data.
> It still needs extra work to resolve the physical addresses.
> Provide a script to facilitate the physical addresses resolving and
> I/O statistics.
>
> Profile with MEM_INST_RETIRED.ALL_LOADS or
> MEM_UOPS_RETIRED.ALL_LOADS
> event if any of them is available.
> Look up the /proc/iomem and resolve the physical address.
> Provide memory type summary.
>
> Here is an example output.
> #perf script report mem-phys-addr
> Event: mem_inst_retired.all_loads:P
> Memory type count percentage
> ---------------------------------------- ----------- -----------
> System RAM 74 53.2%
> Persistent Memory 55 39.6%
> N/A 10 7.2%
>
> Signed-off-by: Kan Liang <[email protected]>
> ---
>
> Changes since V1:
> - Do not mix DLA and Load Latency. Do not compare the loads and stores.
> Only profile the loads.
> - Use event name to replace the RAW event
>
> tools/perf/scripts/python/bin/mem-phys-addr-record | 19 +++++
> tools/perf/scripts/python/bin/mem-phys-addr-report | 3 +
> tools/perf/scripts/python/mem-phys-addr.py | 97
> ++++++++++++++++++++++
> .../util/scripting-engines/trace-event-python.c | 2 +
> 4 files changed, 121 insertions(+)
> create mode 100644 tools/perf/scripts/python/bin/mem-phys-addr-record
> create mode 100644 tools/perf/scripts/python/bin/mem-phys-addr-report
> create mode 100644 tools/perf/scripts/python/mem-phys-addr.py
>
> diff --git a/tools/perf/scripts/python/bin/mem-phys-addr-record
> b/tools/perf/scripts/python/bin/mem-phys-addr-record
> new file mode 100644
> index 0000000..5a87512
> --- /dev/null
> +++ b/tools/perf/scripts/python/bin/mem-phys-addr-record
> @@ -0,0 +1,19 @@
> +#!/bin/bash
> +
> +#
> +# Profiling physical memory by all retired load instructions/uops event
> +# MEM_INST_RETIRED.ALL_LOADS or MEM_UOPS_RETIRED.ALL_LOADS
> +#
> +
> +load=`perf list | grep mem_inst_retired.all_loads`
> +if [ -z "$load" ]; then
> + load=`perf list | grep mem_uops_retired.all_loads`
> +fi
> +if [ -z "$load" ]; then
> + echo "There is no event to count all retired load instructions/uops."
> + exit 1
> +fi
> +
> +arg=$(echo $load | tr -d ' ')
> +arg="$arg:P"
> +perf record --phys-data -e $arg $@
> diff --git a/tools/perf/scripts/python/bin/mem-phys-addr-report
> b/tools/perf/scripts/python/bin/mem-phys-addr-report
> new file mode 100644
> index 0000000..3f2b847
> --- /dev/null
> +++ b/tools/perf/scripts/python/bin/mem-phys-addr-report
> @@ -0,0 +1,3 @@
> +#!/bin/bash
> +# description: resolve physical address samples
> +perf script $@ -s "$PERF_EXEC_PATH"/scripts/python/mem-phys-addr.py
> diff --git a/tools/perf/scripts/python/mem-phys-addr.py
> b/tools/perf/scripts/python/mem-phys-addr.py
> new file mode 100644
> index 0000000..1d1f757
> --- /dev/null
> +++ b/tools/perf/scripts/python/mem-phys-addr.py
> @@ -0,0 +1,97 @@
> +# mem-phys-addr.py: Resolve physical address samples
> +# Copyright (c) 2017, Intel Corporation.
> +#
> +# This program is free software; you can redistribute it and/or modify it
> +# under the terms and conditions of the GNU General Public License,
> +# version 2, as published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope it will be useful, but WITHOUT
> +# ANY WARRANTY; without even the implied warranty of
> MERCHANTABILITY or
> +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
> for
> +# more details.
> +
> +from __future__ import division
> +import os
> +import sys
> +import struct
> +import re
> +import bisect
> +import collections
> +
> +sys.path.append(os.environ['PERF_EXEC_PATH'] + \
> + '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
> +
> +system_ram = []
> +pmem = []
> +f = None
> +load_mem_type_cnt = collections.Counter()
> +event_name = None
> +
> +def parse_iomem():
> + global f
> + f = open('/proc/iomem', 'r')
> + for i, j in enumerate(f):
> + m = re.split('-|:',j,2)
> + if m[2].strip() == 'System RAM':
> + system_ram.append(long(m[0], 16))
> + system_ram.append(long(m[1], 16))
> + if m[2].strip() == 'Persistent Memory':
> + pmem.append(long(m[0], 16))
> + pmem.append(long(m[1], 16))
> +
> +def print_memory_type():
> + print "Event: %s" % (event_name)
> + print "%-40s %10s %10s\n" % ("Memory type", "count",
> "percentage"),
> + print "%-40s %10s %10s\n" % ("----------------------------------------", \
> + "-----------", "-----------"),
> + total = sum(load_mem_type_cnt.values())
> + for mem_type, count in sorted(load_mem_type_cnt.most_common(),
> \
> + key = lambda(k, v): (v, k), reverse =
> True):
> + print "%-40s %10d %10.1f%%\n" % (mem_type, count, 100 *
> count / total),
> +
> +def trace_begin():
> + parse_iomem()
> +
> +def trace_end():
> + print_memory_type()
> + f.close()
> +
> +def is_system_ram(phys_addr):
> + #/proc/iomem is sorted
> + position = bisect.bisect(system_ram, phys_addr)
> + if position % 2 == 0:
> + return False
> + return True
> +
> +def is_persistent_mem(phys_addr):
> + position = bisect.bisect(pmem, phys_addr)
> + if position % 2 == 0:
> + return False
> + return True
> +
> +def find_memory_type(phys_addr):
> + if phys_addr == 0:
> + return "N/A"
> + if is_system_ram(phys_addr):
> + return "System RAM"
> +
> + if is_persistent_mem(phys_addr):
> + return "Persistent Memory"
> +
> + #slow path, search all
> + f.seek(0, 0)
> + for j in f:
> + m = re.split('-|:',j,2)
> + if long(m[0], 16) <= phys_addr <= long(m[1], 16):
> + return m[2]
> + return "N/A"
> +
> +def process_event(param_dict):
> + name = param_dict["ev_name"]
> + sample = param_dict["sample"]
> + phys_addr = sample["phys_addr"]
> +
> + global event_name
> + if event_name == None:
> + event_name = name
> + load_mem_type_cnt[find_memory_type(phys_addr)] += 1
> diff --git a/tools/perf/util/scripting-engines/trace-event-python.c
> b/tools/perf/util/scripting-engines/trace-event-python.c
> index c7187f0..8cd6317 100644
> --- a/tools/perf/util/scripting-engines/trace-event-python.c
> +++ b/tools/perf/util/scripting-engines/trace-event-python.c
> @@ -500,6 +500,8 @@ static PyObject *get_perf_sample_dict(struct
> perf_sample *sample,
> PyLong_FromUnsignedLongLong(sample->time));
> pydict_set_item_string_decref(dict_sample, "period",
> PyLong_FromUnsignedLongLong(sample->period));
> + pydict_set_item_string_decref(dict_sample, "phys_addr",
> + PyLong_FromUnsignedLongLong(sample-
> >phys_addr));
> set_sample_read_in_dict(dict_sample, sample, evsel);
> pydict_set_item_string_decref(dict, "sample", dict_sample);
>
> --
> 2.7.4


2018-01-04 10:43:21

by Philippe Ombredanne

[permalink] [raw]
Subject: Re: [PATCH V2] perf script: add script to profile and resolve physical mem type

Dear Kan,

On Wed, Jan 3, 2018 at 9:20 PM, Liang, Kan <[email protected]> wrote:
> Hi Stephane and Andi,
>
> Could you please review the script?
>
> If it's OK for you, could you please Ack/Review this?
>
> Thanks,
> Kan
>
>>
>> From: Kan Liang <[email protected]>
>>
>> There could be different types of memory in the system. E.g normal
>> System Memory, Persistent Memory. To understand how the workload maps
>> to
>> those memories, it's important to know the I/O statistics of them.
>> Perf can collect physical addresses, but those are raw data.
>> It still needs extra work to resolve the physical addresses.
>> Provide a script to facilitate the physical addresses resolving and
>> I/O statistics.
>>
>> Profile with MEM_INST_RETIRED.ALL_LOADS or
>> MEM_UOPS_RETIRED.ALL_LOADS
>> event if any of them is available.
>> Look up the /proc/iomem and resolve the physical address.
>> Provide memory type summary.
>>
>> Here is an example output.
>> #perf script report mem-phys-addr
>> Event: mem_inst_retired.all_loads:P
>> Memory type count percentage
>> ---------------------------------------- ----------- -----------
>> System RAM 74 53.2%
>> Persistent Memory 55 39.6%
>> N/A 10 7.2%
>>
>> Signed-off-by: Kan Liang <[email protected]>
>> ---
>>
>> Changes since V1:
>> - Do not mix DLA and Load Latency. Do not compare the loads and stores.
>> Only profile the loads.
>> - Use event name to replace the RAW event
>>
>> tools/perf/scripts/python/bin/mem-phys-addr-record | 19 +++++
>> tools/perf/scripts/python/bin/mem-phys-addr-report | 3 +
>> tools/perf/scripts/python/mem-phys-addr.py | 97
>> ++++++++++++++++++++++
>> .../util/scripting-engines/trace-event-python.c | 2 +
>> 4 files changed, 121 insertions(+)
>> create mode 100644 tools/perf/scripts/python/bin/mem-phys-addr-record
>> create mode 100644 tools/perf/scripts/python/bin/mem-phys-addr-report
>> create mode 100644 tools/perf/scripts/python/mem-phys-addr.py
>>
>> diff --git a/tools/perf/scripts/python/bin/mem-phys-addr-record
>> b/tools/perf/scripts/python/bin/mem-phys-addr-record
>> new file mode 100644
>> index 0000000..5a87512
>> --- /dev/null
>> +++ b/tools/perf/scripts/python/bin/mem-phys-addr-record
>> @@ -0,0 +1,19 @@
>> +#!/bin/bash
>> +
>> +#
>> +# Profiling physical memory by all retired load instructions/uops event
>> +# MEM_INST_RETIRED.ALL_LOADS or MEM_UOPS_RETIRED.ALL_LOADS
>> +#
>> +
>> +load=`perf list | grep mem_inst_retired.all_loads`
>> +if [ -z "$load" ]; then
>> + load=`perf list | grep mem_uops_retired.all_loads`
>> +fi
>> +if [ -z "$load" ]; then
>> + echo "There is no event to count all retired load instructions/uops."
>> + exit 1
>> +fi
>> +
>> +arg=$(echo $load | tr -d ' ')
>> +arg="$arg:P"
>> +perf record --phys-data -e $arg $@
>> diff --git a/tools/perf/scripts/python/bin/mem-phys-addr-report
>> b/tools/perf/scripts/python/bin/mem-phys-addr-report
>> new file mode 100644
>> index 0000000..3f2b847
>> --- /dev/null
>> +++ b/tools/perf/scripts/python/bin/mem-phys-addr-report
>> @@ -0,0 +1,3 @@
>> +#!/bin/bash
>> +# description: resolve physical address samples
>> +perf script $@ -s "$PERF_EXEC_PATH"/scripts/python/mem-phys-addr.py
>> diff --git a/tools/perf/scripts/python/mem-phys-addr.py
>> b/tools/perf/scripts/python/mem-phys-addr.py
>> new file mode 100644
>> index 0000000..1d1f757
>> --- /dev/null
>> +++ b/tools/perf/scripts/python/mem-phys-addr.py
>> @@ -0,0 +1,97 @@
>> +# mem-phys-addr.py: Resolve physical address samples
>> +# Copyright (c) 2017, Intel Corporation.
>> +#
>> +# This program is free software; you can redistribute it and/or modify it
>> +# under the terms and conditions of the GNU General Public License,
>> +# version 2, as published by the Free Software Foundation.
>> +#
>> +# This program is distributed in the hope it will be useful, but WITHOUT
>> +# ANY WARRANTY; without even the implied warranty of
>> MERCHANTABILITY or
>> +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
>> for
>> +# more details.

May be you could consider using an SPDX tag instead of this fine but
long legalese?
See Thomas doc patches [1] for details

[1] https://lkml.org/lkml/2017/12/28/323

>> +
>> +from __future__ import division
>> +import os
>> +import sys
>> +import struct
>> +import re
>> +import bisect
>> +import collections
>> +
>> +sys.path.append(os.environ['PERF_EXEC_PATH'] + \
>> + '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
>> +
>> +system_ram = []
>> +pmem = []
>> +f = None
>> +load_mem_type_cnt = collections.Counter()
>> +event_name = None

nit. may be it does not matter too much.... but using globals
throughout as opposed to return values makes the script harder to read
IMHO.

>> +
>> +def parse_iomem():
>> + global f
>> + f = open('/proc/iomem', 'r')
>> + for i, j in enumerate(f):
>> + m = re.split('-|:',j,2)
>> + if m[2].strip() == 'System RAM':
>> + system_ram.append(long(m[0], 16))
>> + system_ram.append(long(m[1], 16))
>> + if m[2].strip() == 'Persistent Memory':
>> + pmem.append(long(m[0], 16))
>> + pmem.append(long(m[1], 16))
>> +
>> +def print_memory_type():
>> + print "Event: %s" % (event_name)
>> + print "%-40s %10s %10s\n" % ("Memory type", "count",
>> "percentage"),
>> + print "%-40s %10s %10s\n" % ("----------------------------------------", \
>> + "-----------", "-----------"),
>> + total = sum(load_mem_type_cnt.values())
>> + for mem_type, count in sorted(load_mem_type_cnt.most_common(),
>> \
>> + key = lambda(k, v): (v, k), reverse =
>> True):
>> + print "%-40s %10d %10.1f%%\n" % (mem_type, count, 100 *
>> count / total),
>> +
>> +def trace_begin():
>> + parse_iomem()
>> +
>> +def trace_end():
>> + print_memory_type()
>> + f.close()
>> +
>> +def is_system_ram(phys_addr):
>> + #/proc/iomem is sorted
>> + position = bisect.bisect(system_ram, phys_addr)
>> + if position % 2 == 0:
>> + return False
>> + return True
>> +
>> +def is_persistent_mem(phys_addr):
>> + position = bisect.bisect(pmem, phys_addr)
>> + if position % 2 == 0:
>> + return False
>> + return True
>> +
>> +def find_memory_type(phys_addr):
>> + if phys_addr == 0:
>> + return "N/A"
>> + if is_system_ram(phys_addr):
>> + return "System RAM"
>> +
>> + if is_persistent_mem(phys_addr):
>> + return "Persistent Memory"
>> +
>> + #slow path, search all
>> + f.seek(0, 0)
>> + for j in f:
>> + m = re.split('-|:',j,2)
>> + if long(m[0], 16) <= phys_addr <= long(m[1], 16):
>> + return m[2]
>> + return "N/A"
>> +
>> +def process_event(param_dict):
>> + name = param_dict["ev_name"]
>> + sample = param_dict["sample"]
>> + phys_addr = sample["phys_addr"]
>> +
>> + global event_name
>> + if event_name == None:
>> + event_name = name
>> + load_mem_type_cnt[find_memory_type(phys_addr)] += 1
>> diff --git a/tools/perf/util/scripting-engines/trace-event-python.c
>> b/tools/perf/util/scripting-engines/trace-event-python.c
>> index c7187f0..8cd6317 100644
>> --- a/tools/perf/util/scripting-engines/trace-event-python.c
>> +++ b/tools/perf/util/scripting-engines/trace-event-python.c
>> @@ -500,6 +500,8 @@ static PyObject *get_perf_sample_dict(struct
>> perf_sample *sample,
>> PyLong_FromUnsignedLongLong(sample->time));
>> pydict_set_item_string_decref(dict_sample, "period",
>> PyLong_FromUnsignedLongLong(sample->period));
>> + pydict_set_item_string_decref(dict_sample, "phys_addr",
>> + PyLong_FromUnsignedLongLong(sample-
>> >phys_addr));
>> set_sample_read_in_dict(dict_sample, sample, evsel);
>> pydict_set_item_string_decref(dict, "sample", dict_sample);
>>
>> --
>> 2.7.4
>


--
Cordially
Philippe Ombredanne

2018-01-04 15:19:47

by Liang, Kan

[permalink] [raw]
Subject: RE: [PATCH V2] perf script: add script to profile and resolve physical mem type


> Dear Kan,
>
> On Wed, Jan 3, 2018 at 9:20 PM, Liang, Kan <[email protected]> wrote:
> > Hi Stephane and Andi,
> >
> > Could you please review the script?
> >
> > If it's OK for you, could you please Ack/Review this?
> >
> > Thanks,
> > Kan
> >
> >>
> >> From: Kan Liang <[email protected]>
> >>
> >> There could be different types of memory in the system. E.g normal
> >> System Memory, Persistent Memory. To understand how the workload
> maps
> >> to
> >> those memories, it's important to know the I/O statistics of them.
> >> Perf can collect physical addresses, but those are raw data.
> >> It still needs extra work to resolve the physical addresses.
> >> Provide a script to facilitate the physical addresses resolving and
> >> I/O statistics.
> >>
> >> Profile with MEM_INST_RETIRED.ALL_LOADS or
> >> MEM_UOPS_RETIRED.ALL_LOADS
> >> event if any of them is available.
> >> Look up the /proc/iomem and resolve the physical address.
> >> Provide memory type summary.
> >>
> >> Here is an example output.
> >> #perf script report mem-phys-addr
> >> Event: mem_inst_retired.all_loads:P
> >> Memory type count percentage
> >> ---------------------------------------- ----------- -----------
> >> System RAM 74 53.2%
> >> Persistent Memory 55 39.6%
> >> N/A 10 7.2%
> >>
> >> Signed-off-by: Kan Liang <[email protected]>
> >> ---
> >>
> >> Changes since V1:
> >> - Do not mix DLA and Load Latency. Do not compare the loads and stores.
> >> Only profile the loads.
> >> - Use event name to replace the RAW event
> >>
> >> tools/perf/scripts/python/bin/mem-phys-addr-record | 19 +++++
> >> tools/perf/scripts/python/bin/mem-phys-addr-report | 3 +
> >> tools/perf/scripts/python/mem-phys-addr.py | 97
> >> ++++++++++++++++++++++
> >> .../util/scripting-engines/trace-event-python.c | 2 +
> >> 4 files changed, 121 insertions(+)
> >> create mode 100644 tools/perf/scripts/python/bin/mem-phys-addr-
> record
> >> create mode 100644 tools/perf/scripts/python/bin/mem-phys-addr-
> report
> >> create mode 100644 tools/perf/scripts/python/mem-phys-addr.py
> >>
> >> diff --git a/tools/perf/scripts/python/bin/mem-phys-addr-record
> >> b/tools/perf/scripts/python/bin/mem-phys-addr-record
> >> new file mode 100644
> >> index 0000000..5a87512
> >> --- /dev/null
> >> +++ b/tools/perf/scripts/python/bin/mem-phys-addr-record
> >> @@ -0,0 +1,19 @@
> >> +#!/bin/bash
> >> +
> >> +#
> >> +# Profiling physical memory by all retired load instructions/uops event
> >> +# MEM_INST_RETIRED.ALL_LOADS or MEM_UOPS_RETIRED.ALL_LOADS
> >> +#
> >> +
> >> +load=`perf list | grep mem_inst_retired.all_loads`
> >> +if [ -z "$load" ]; then
> >> + load=`perf list | grep mem_uops_retired.all_loads`
> >> +fi
> >> +if [ -z "$load" ]; then
> >> + echo "There is no event to count all retired load instructions/uops."
> >> + exit 1
> >> +fi
> >> +
> >> +arg=$(echo $load | tr -d ' ')
> >> +arg="$arg:P"
> >> +perf record --phys-data -e $arg $@
> >> diff --git a/tools/perf/scripts/python/bin/mem-phys-addr-report
> >> b/tools/perf/scripts/python/bin/mem-phys-addr-report
> >> new file mode 100644
> >> index 0000000..3f2b847
> >> --- /dev/null
> >> +++ b/tools/perf/scripts/python/bin/mem-phys-addr-report
> >> @@ -0,0 +1,3 @@
> >> +#!/bin/bash
> >> +# description: resolve physical address samples
> >> +perf script $@ -s "$PERF_EXEC_PATH"/scripts/python/mem-phys-
> addr.py
> >> diff --git a/tools/perf/scripts/python/mem-phys-addr.py
> >> b/tools/perf/scripts/python/mem-phys-addr.py
> >> new file mode 100644
> >> index 0000000..1d1f757
> >> --- /dev/null
> >> +++ b/tools/perf/scripts/python/mem-phys-addr.py
> >> @@ -0,0 +1,97 @@
> >> +# mem-phys-addr.py: Resolve physical address samples
> >> +# Copyright (c) 2017, Intel Corporation.
> >> +#
> >> +# This program is free software; you can redistribute it and/or modify it
> >> +# under the terms and conditions of the GNU General Public License,
> >> +# version 2, as published by the Free Software Foundation.
> >> +#
> >> +# This program is distributed in the hope it will be useful, but WITHOUT
> >> +# ANY WARRANTY; without even the implied warranty of
> >> MERCHANTABILITY or
> >> +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
> License
> >> for
> >> +# more details.
>
> May be you could consider using an SPDX tag instead of this fine but
> long legalese?
> See Thomas doc patches [1] for details
>
> [1] https://lkml.org/lkml/2017/12/28/323
>

Thanks Philippe.
I will update the license in V3.


> >> +
> >> +from __future__ import division
> >> +import os
> >> +import sys
> >> +import struct
> >> +import re
> >> +import bisect
> >> +import collections
> >> +
> >> +sys.path.append(os.environ['PERF_EXEC_PATH'] + \
> >> + '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
> >> +
> >> +system_ram = []
> >> +pmem = []
> >> +f = None
> >> +load_mem_type_cnt = collections.Counter()
> >> +event_name = None
>
> nit. may be it does not matter too much.... but using globals
> throughout as opposed to return values makes the script harder to read
> IMHO.
>

The python script is embedded into C code. It implements the standard
interfaces. I think the globals should be a good way to share between
functions and among each calls. Otherwise, it has to change the interfaces,
which will impact other existing scripts.

Thanks,
Kan

> >> +
> >> +def parse_iomem():
> >> + global f
> >> + f = open('/proc/iomem', 'r')
> >> + for i, j in enumerate(f):
> >> + m = re.split('-|:',j,2)
> >> + if m[2].strip() == 'System RAM':
> >> + system_ram.append(long(m[0], 16))
> >> + system_ram.append(long(m[1], 16))
> >> + if m[2].strip() == 'Persistent Memory':
> >> + pmem.append(long(m[0], 16))
> >> + pmem.append(long(m[1], 16))
> >> +
> >> +def print_memory_type():
> >> + print "Event: %s" % (event_name)
> >> + print "%-40s %10s %10s\n" % ("Memory type", "count",
> >> "percentage"),
> >> + print "%-40s %10s %10s\n" % ("----------------------------------------", \
> >> + "-----------", "-----------"),
> >> + total = sum(load_mem_type_cnt.values())
> >> + for mem_type, count in sorted(load_mem_type_cnt.most_common(),
> >> \
> >> + key = lambda(k, v): (v, k), reverse =
> >> True):
> >> + print "%-40s %10d %10.1f%%\n" % (mem_type, count, 100 *
> >> count / total),
> >> +
> >> +def trace_begin():
> >> + parse_iomem()
> >> +
> >> +def trace_end():
> >> + print_memory_type()
> >> + f.close()
> >> +
> >> +def is_system_ram(phys_addr):
> >> + #/proc/iomem is sorted
> >> + position = bisect.bisect(system_ram, phys_addr)
> >> + if position % 2 == 0:
> >> + return False
> >> + return True
> >> +
> >> +def is_persistent_mem(phys_addr):
> >> + position = bisect.bisect(pmem, phys_addr)
> >> + if position % 2 == 0:
> >> + return False
> >> + return True
> >> +
> >> +def find_memory_type(phys_addr):
> >> + if phys_addr == 0:
> >> + return "N/A"
> >> + if is_system_ram(phys_addr):
> >> + return "System RAM"
> >> +
> >> + if is_persistent_mem(phys_addr):
> >> + return "Persistent Memory"
> >> +
> >> + #slow path, search all
> >> + f.seek(0, 0)
> >> + for j in f:
> >> + m = re.split('-|:',j,2)
> >> + if long(m[0], 16) <= phys_addr <= long(m[1], 16):
> >> + return m[2]
> >> + return "N/A"
> >> +
> >> +def process_event(param_dict):
> >> + name = param_dict["ev_name"]
> >> + sample = param_dict["sample"]
> >> + phys_addr = sample["phys_addr"]
> >> +
> >> + global event_name
> >> + if event_name == None:
> >> + event_name = name
> >> + load_mem_type_cnt[find_memory_type(phys_addr)] += 1
> >> diff --git a/tools/perf/util/scripting-engines/trace-event-python.c
> >> b/tools/perf/util/scripting-engines/trace-event-python.c
> >> index c7187f0..8cd6317 100644
> >> --- a/tools/perf/util/scripting-engines/trace-event-python.c
> >> +++ b/tools/perf/util/scripting-engines/trace-event-python.c
> >> @@ -500,6 +500,8 @@ static PyObject *get_perf_sample_dict(struct
> >> perf_sample *sample,
> >> PyLong_FromUnsignedLongLong(sample->time));
> >> pydict_set_item_string_decref(dict_sample, "period",
> >> PyLong_FromUnsignedLongLong(sample->period));
> >> + pydict_set_item_string_decref(dict_sample, "phys_addr",
> >> + PyLong_FromUnsignedLongLong(sample-
> >> >phys_addr));
> >> set_sample_read_in_dict(dict_sample, sample, evsel);
> >> pydict_set_item_string_decref(dict, "sample", dict_sample);
> >>
> >> --
> >> 2.7.4
> >
>
>
> --
> Cordially
> Philippe Ombredanne