Re: [PATCHv3 0/8] perf tools: Add perf data CTF conversion

From: JÃrÃmie Galarneau
Date: Fri Jan 16 2015 - 11:46:41 EST

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In reply to: Alexandre Montplaisir: "Re: [PATCHv3 0/8] perf tools: Add perf data CTF conversion"
Next in thread: Jiri Olsa: "Re: [PATCHv3 0/8] perf tools: Add perf data CTF conversion"
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On Fri, Jan 16, 2015 at 10:26 AM, Alexandre Montplaisir
<alexmonthy@xxxxxxxxxxxx> wrote:
> 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
>

It's a regression introduced by a commit that was pushed to master
yesterday. I'm working on a fix.
In the meantime, testing against Babeltrace master 3baf0856 should be alright.

JÃrÃmie

> 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@xxxxxxxxxx>
>>> Cc: David Ahern <dsahern@xxxxxxxxx>
>>> Cc: Dominique Toupin <dominique.toupin@xxxxxxxxxxxx>
>>> Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
>>> Cc: Jeremie Galarneau <jgalar@xxxxxxxxxxxx>
>>> Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
>>> Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
>>> Cc: Namhyung Kim <namhyung@xxxxxxxxx>
>>> Cc: Paul Mackerras <paulus@xxxxxxxxx>
>>> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
>>> Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
>>> Cc: Tom Zanussi <tzanussi@xxxxxxxxx>
>>> ---
>>> 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
>>
>>
>

--
JÃrÃmie Galarneau
EfficiOS Inc.
http://www.efficios.com
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Next message: Suzuki K. Poulose: "Re: [PATCH 2/3] arm64: Consolidate hotplug notifier for instruction emulation"
Previous message: Jim Davis: "randconfig build error with next-20150116, in drivers/media/v4l2-core/tuner-core.c"
In reply to: Alexandre Montplaisir: "Re: [PATCHv3 0/8] perf tools: Add perf data CTF conversion"
Next in thread: Jiri Olsa: "Re: [PATCHv3 0/8] perf tools: Add perf data CTF conversion"
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