From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@kernel.org>,
linux-kernel@vger.kernel.org
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Jeremie Galarneau <jgalar@efficios.com>,
Namhyung Kim <namhyung@gmail.com>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <peterz@infradead.org>,
Tom Zanussi <tzanussi@gmail.com>
Subject: Re: [PATCH 4/8] perf data: Add a 'perf' prefix to the generic fields
Date: Thu, 11 Dec 2014 19:57:59 +0100 [thread overview]
Message-ID: <5489E937.2050102@linutronix.de> (raw)
In-Reply-To: <5489E88A.3000801@gmail.com>
On 12/11/2014 07:55 PM, David Ahern wrote:
> On 12/11/14 8:12 AM, Jiri Olsa wrote:
>
>> Before:
>> $ babeltrace ./ctf-data/
>> [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 }
>> ...
>>
>> Now:
>> $ babeltrace ./ctf-data/
>> [03:19:13.962131936] (+0.000001935) cycles: { }, { perf_ip =
>> 0xFFFFFFFF8105443A, perf_tid = 20714, perf_pid = 20714, perf_period = 8 }
>> [03:19:13.962133732] (+0.000001796) cycles: { }, { perf_ip =
>> 0xFFFFFFFF8105443A, perf_tid = 20714, perf_pid = 20714, perf_period =
>> 114 }
>> ...
>
> How is babeltrace showing time-of-day for perf-based data files? Is that
> tod when the command is run?
CTF needs an a base offset which we set to 0 because we don't have it.
It then takes the NS timestamp and computes the "time".
> David
Sebastian
next prev parent reply other threads:[~2014-12-11 18:58 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-11 15:12 [PATCHv2 0/8] perf tools: Add perf data CTF conversion Jiri Olsa
2014-12-11 15:12 ` [PATCH 1/8] perf tools: Add feature check for libbabeltrace Jiri Olsa
2014-12-11 15:12 ` [PATCH 2/8] perf tools: Add new perf data command Jiri Olsa
2014-12-11 15:12 ` [PATCH 3/8] perf data: Add perf data to CTF conversion support Jiri Olsa
2014-12-11 17:06 ` David Ahern
2014-12-11 17:15 ` Jiri Olsa
2014-12-11 15:12 ` [PATCH 4/8] perf data: Add a 'perf' prefix to the generic fields Jiri Olsa
2014-12-11 18:55 ` David Ahern
2014-12-11 18:57 ` Sebastian Andrzej Siewior [this message]
2014-12-11 19:47 ` David Ahern
2014-12-11 20:22 ` Sebastian Andrzej Siewior
2014-12-11 15:12 ` [PATCH 5/8] perf data: Add tracepoint events fields CTF conversion support Jiri Olsa
2014-12-11 15:12 ` [PATCH 6/8] perf data: Switch to multiple cpu stream files Jiri Olsa
2014-12-11 15:12 ` [PATCH 7/8] perf data: Enable stream flush within processing Jiri Olsa
2014-12-11 15:12 ` [PATCH 8/8] perf data: Add support for setting ordered_events queue size Jiri Olsa
2014-12-22 15:08 ` [PATCHv2 0/8] perf tools: Add perf data CTF conversion Jiri Olsa
2015-01-08 10:28 ` Jiri Olsa
2015-01-08 13:52 ` Namhyung Kim
2015-01-09 10:38 ` Jiri Olsa
2015-01-08 14:29 ` Peter Zijlstra
2015-01-08 14:38 ` Jiri Olsa
2015-01-09 9:58 ` Peter Zijlstra
2015-01-09 10:03 ` Jiri Olsa
-- strict thread matches above, loose matches on Subject: below --
2015-01-15 16:15 [PATCHv3 " Jiri Olsa
2015-01-15 16:15 ` [PATCH 4/8] perf data: Add a 'perf' prefix to the generic fields Jiri Olsa
2014-12-03 16:23 [PATCH 0/8] perf tools: Add perf data CTF conversion Jiri Olsa
2014-12-03 16:23 ` [PATCH 4/8] perf data: Add a 'perf' prefix to the generic fields Jiri Olsa
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