From: Namhyung Kim <namhyung@kernel.org>
To: Dmitry Antipov <dmitry.antipov@linaro.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
linux-kernel@vger.kernel.org, linaro-dev@lists.linaro.org,
patches@linaro.org
Subject: Re: perf sched replay again
Date: Fri, 06 Jul 2012 15:30:37 +0900 [thread overview]
Message-ID: <87k3yhl7ua.fsf@sejong.aot.lge.com> (raw)
In-Reply-To: <4FF40B7E.20202@linaro.org> (Dmitry Antipov's message of "Wed, 04 Jul 2012 13:23:10 +0400")
Hi, Dmitry
On Wed, 04 Jul 2012 13:23:10 +0400, Dmitry Antipov wrote:
> I remember that this was rejected some time ago. Nevertheless,
> is it possible to accept this until we will have a better solution?
>
Why???
Ingo already merged da3789628f88 ("perf tools: Stop using a global
trace events description list"). Didn't it solve your problem?
On my tesing, it works well for cross-replay:
$ ./perf sched -i ~/arm/perf.data replay
run measurement overhead: 253 nsecs
sleep measurement overhead: 55136 nsecs
the run test took 1000013 nsecs
the sleep test took 1057532 nsecs
nr_run_events: 53
nr_sleep_events: 62
nr_wakeup_events: 31
target-less wakeups: 1
task 0 ( <unknown>: 1496), nr_events: 18
task 1 ( perf: 1497), nr_events: 10
task 2 ( ksoftirqd/0: 3), nr_events: 9
task 3 ( kworker/0:1: 280), nr_events: 36
task 4 ( swapper: 0), nr_events: 62
task 5 ( sync_supers: 103), nr_events: 3
task 6 ( init: 1), nr_events: 3
task 7 ( flush-8:0: 560), nr_events: 3
task 8 ( rsyslogd: 1135), nr_events: 3
------------------------------------------------------------
#1 : 2664.545, ravg: 2664.54, cpu: 3125.45 / 3125.45
#2 : 2664.978, ravg: 2664.59, cpu: 3124.99 / 3125.40
#3 : 2664.736, ravg: 2664.60, cpu: 3125.68 / 3125.43
#4 : 2664.620, ravg: 2664.60, cpu: 3125.96 / 3125.48
#5 : 2665.132, ravg: 2664.66, cpu: 3126.02 / 3125.54
#6 : 2665.096, ravg: 2664.70, cpu: 3083.47 / 3121.33
#7 : 2665.585, ravg: 2664.79, cpu: 3125.66 / 3121.76
#8 : 2664.839, ravg: 2664.79, cpu: 3126.01 / 3122.19
#9 : 2664.750, ravg: 2664.79, cpu: 3125.38 / 3122.51
#10 : 2668.297, ravg: 2665.14, cpu: 3116.82 / 3121.94
Of course, host and arm machine have different id's.
Thanks,
Namhyung
prev parent reply other threads:[~2012-07-06 6:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-04 9:23 Dmitry Antipov
2012-07-06 6:30 ` Namhyung Kim [this message]
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