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Date: Fri, 16 Jan 2015 10:26:35 -0500
From: Alexandre Montplaisir <alexmonthy@...populi.im>
To: linux-kernel@...r.kernel.org
CC: Jiri Olsa <jolsa@...nel.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
David Ahern <dsahern@...il.com>,
Dominique Toupin <dominique.toupin@...csson.com>,
Frederic Weisbecker <fweisbec@...il.com>,
Jeremie Galarneau <jgalar@...icios.com>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
Namhyung Kim <namhyung@...il.com>,
Paul Mackerras <paulus@...ba.org>,
Peter Zijlstra <peterz@...radead.org>,
Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
Tom Zanussi <tzanussi@...il.com>
Subject: Re: [PATCHv3 0/8] perf tools: Add perf data CTF conversion
On 2015-01-15 03:57 PM, Alexandre Montplaisir wrote:
> Hi,
>
> I'm a developer for the Trace Compass tool (see links [3], [4] in
> Jiri's email). I can confirm that the generated CTF can be read
> correctly by our tool, which enables many views and analyses (Control
> Flow, CPU usage view, etc.) that were previously only available for
> LTTng traces.
>
> Some of our users also use perf extensively, and are looking forward
> to this feature! Is there any ETA as to when this will be merged
> upstream?
>
> Thanks,
> Alexandre
That was a bit too fast, it seems there are issues with very recent
versions of Babeltrace. You can follow the discussion at
http://lists.linuxfoundation.org/pipermail/diamon-discuss/2015-January/000007.html
Cheers,
Alex
>
>
> On 01/15/2015 11:15 AM, Jiri Olsa wrote:
>> hi,
>> this is follow up on original RFC patchset:
>> http://marc.info/?t=140732735600004&r=1&w=2
>>
>> Basically we are adding 'perf data convert' command to
>> allow conversion of perf data file into CTF [1] data.
>>
>> v3 changes:
>> - rebased to latest acme's perf/core
>>
>> v2 changes:
>> - addressed comments from Namhyung
>> - rebased to latest acme's perf/core
>>
>> Changes from RFC:
>> - able to generate CTF data, that are possible to be displayed under
>> tracecompas GUI [3], please check several screenshots in here [4]
>> - storing CTF data streams per cpu
>> - several cleanups
>>
>> Examples:
>> - Catch default perf data (cycles event):
>> $ perf record ls
>> [ perf record: Woken up 1 times to write data ]
>> [ perf record: Captured and wrote 0.012 MB perf.data (~546 samples) ]
>>
>> - To display converted CTF data run [2]:
>> $ babeltrace ./ctf-data/
>> [03:19:13.962125533] (+?.?????????) cycles: { }, { ip =
>> 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 1 }
>> [03:19:13.962130001] (+0.000004468) cycles: { }, { ip =
>> 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 1 }
>> [03:19:13.962131936] (+0.000001935) cycles: { }, { ip =
>> 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 8 }
>> [03:19:13.962133732] (+0.000001796) cycles: { }, { ip =
>> 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 114 }
>> [03:19:13.962135557] (+0.000001825) cycles: { }, { ip =
>> 0xFFFFFFFF8105443A, tid = 20714, pid = 20714, period = 2087 }
>> [03:19:13.962137627] (+0.000002070) cycles: { }, { ip =
>> 0xFFFFFFFF81361938, tid = 20714, pid = 20714, period = 37582 }
>> [03:19:13.962161091] (+0.000023464) cycles: { }, { ip =
>> 0xFFFFFFFF8124218F, tid = 20714, pid = 20714, period = 600246 }
>> [03:19:13.962517569] (+0.000356478) cycles: { }, { ip =
>> 0xFFFFFFFF811A75DB, tid = 20714, pid = 20714, period = 1325731 }
>> [03:19:13.969518008] (+0.007000439) cycles: { }, { ip =
>> 0x34080917B2, tid = 20714, pid = 20714, period = 1144298 }
>>
>> - To get some nice output in tracecompas GUI [3], please capture sched:*
>> and syscall tracepoints like:
>> # perf record -e 'sched:*,raw_syscalls:*' -a
>> ^C[ perf record: Woken up 0 times to write data ]
>> [ perf record: Captured and wrote 412.347 MB perf.data (~18015721
>> samples) ]
>>
>> - To convert perf data file run:
>> # perf data convert --to-ctf=./ctf
>> [ perf data convert: Converted 'perf.data' into CTF data './ctf' ]
>> [ perf data convert: Converted and wrote 408.421 MB (3964792
>> samples) ]
>>
>> - To display converted CTF data run [2]:
>> # babeltrace ./ctf-data/
>> [23:32:20.165354855] (+0.000000507) sched:sched_wakeup: { cpu_id =
>> 0 }, { perf_ip = 0xFFFFFFFF810BCA72, perf_tid = 0, perf_pid = 0,
>> perf_id = 462554, perf_period = 1, common_type = 265, ...
>> [23:32:20.165359078] (+0.000001181) sched:sched_switch: { cpu_id =
>> 0 }, { perf_ip = 0xFFFFFFFF8172A110, perf_tid = 0, perf_pid = 0,
>> perf_id = 462562, perf_period = 1, common_type = 263, ...
>> [23:32:20.165364686] (+0.000000328) sched:sched_stat_runtime: {
>> cpu_id = 0 }, { perf_ip = 0xFFFFFFFF810C8AE5, perf_tid = 5326,
>> perf_pid = 5326, perf_id = 462610, perf_period = 11380, ...
>> [23:32:20.165366067] (+0.000001205) sched:sched_switch: { cpu_id =
>> 0 }, { perf_ip = 0xFFFFFFFF8172A110, perf_tid = 5326, perf_pid =
>> 5326, perf_id = 462562, perf_period = 1, common_type ...
>> [23:32:20.165723312] (+0.000001479) sched:sched_stat_runtime: {
>> cpu_id = 2 }, { perf_ip = 0xFFFFFFFF810C8AE5, perf_tid = 11821,
>> perf_pid = 11821, perf_id = 462612, perf_period = 1000265, ...
>> [23:32:20.065282391] (+?.?????????) raw_syscalls:sys_enter: {
>> cpu_id = 1 }, { perf_ip = 0xFFFFFFFF810230AF, perf_tid = 26155,
>> perf_pid = 26155, perf_id = 462635, perf_period = 1, ...
>> [23:32:20.065286422] (+0.000004031) raw_syscalls:sys_exit: {
>> cpu_id = 1 }, { perf_ip = 0xFFFFFFFF810231D8, perf_tid = 26155,
>> perf_pid = 26155, perf_id = 462639, perf_period = 1, ...
>>
>> - Or run tracecompass and open the CTF data ;-)
>>
>> Changes are also reachable in here:
>> git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
>> perf/core_ctf_convert
>>
>> thanks,
>> jirka
>>
>> [1] Common Trace Format - http://www.efficios.com/ctf
>> [2] babeltrace - http://www.efficios.com/babeltrace
>> [3] Trace compass -
>> http://projects.eclipse.org/projects/tools.tracecompass
>> [4] screenshots - http://people.redhat.com/~jolsa/tracecompass-perf/
>>
>>
>> Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
>> Cc: David Ahern <dsahern@...il.com>
>> Cc: Dominique Toupin <dominique.toupin@...csson.com>
>> Cc: Frederic Weisbecker <fweisbec@...il.com>
>> Cc: Jeremie Galarneau <jgalar@...icios.com>
>> Cc: Jiri Olsa <jolsa@...nel.org>
>> Cc: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
>> Cc: Namhyung Kim <namhyung@...il.com>
>> Cc: Paul Mackerras <paulus@...ba.org>
>> Cc: Peter Zijlstra <peterz@...radead.org>
>> Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
>> Cc: Tom Zanussi <tzanussi@...il.com>
>> ---
>> Jiri Olsa (5):
>> perf tools: Add feature check for libbabeltrace
>> perf tools: Add new perf data command
>> perf data: Add perf data to CTF conversion support
>> perf data: Enable stream flush within processing
>> perf data: Add support for setting ordered_events queue size
>>
>> Sebastian Andrzej Siewior (3):
>> perf data: Add a 'perf' prefix to the generic fields
>> perf data: Add tracepoint events fields CTF conversion support
>> perf data: Switch to multiple cpu stream files
>>
>> tools/perf/Documentation/perf-data.txt | 40 ++
>> tools/perf/Documentation/perf.txt | 7 +-
>> tools/perf/Makefile.perf | 9 +-
>> tools/perf/builtin-data.c | 119 ++++++
>> tools/perf/builtin.h | 1 +
>> tools/perf/command-list.txt | 1 +
>> tools/perf/config/Makefile | 24 ++
>> tools/perf/config/feature-checks/Makefile | 8 +-
>> tools/perf/config/feature-checks/test-all.c | 5 +
>> tools/perf/config/feature-checks/test-libbabeltrace.c | 8 +
>> tools/perf/perf.c | 1 +
>> tools/perf/util/data-convert-bt.c | 1057
>> +++++++++++++++++++++++++++++++++++++++++++++++++
>> tools/perf/util/data-convert-bt.h | 8 +
>> tools/perf/util/debug.c | 2 +
>> tools/perf/util/debug.h | 1 +
>> 15 files changed, 1287 insertions(+), 4 deletions(-)
>> create mode 100644 tools/perf/Documentation/perf-data.txt
>> create mode 100644 tools/perf/builtin-data.c
>> create mode 100644
>> tools/perf/config/feature-checks/test-libbabeltrace.c
>> create mode 100644 tools/perf/util/data-convert-bt.c
>> create mode 100644 tools/perf/util/data-convert-bt.h
>
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