From: Dmitry Antipov <dmitry.antipov@linaro.org>
To: Ingo Molnar <mingo@kernel.org>,
Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: linux-kernel@vger.kernel.org, David Ahern <dsahern@gmail.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>,
Jiri Olsa <jolsa@redhat.com>,
linaro-dev@lists.linaro.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Mike Sartain <mikesart@valvesoftware.com>,
Namhyung Kim <namhyung@gmail.com>,
Namhyung Kim <namhyung@kernel.org>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <peterz@infradead.org>,
"Pierre-Loup A. Griffais" <pgriffais@nvidia.com>,
Thomas Gleixner <tglx@linutronix.de>,
Tim Chen <tim.c.chen@linux.intel.com>,
arnaldo.melo@gmail.com,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: Re: [GIT PULL 0/7] perf/core improvements and fixes
Date: Mon, 02 Jul 2012 12:01:32 +0400 [thread overview]
Message-ID: <4FF1555C.7020901@linaro.org> (raw)
In-Reply-To: <20120629131253.GA395@gmail.com>
On 06/29/2012 05:12 PM, Ingo Molnar wrote:
> Pulled, thanks Arnaldo!
As of ca24a145573124732152daff105ba68cc9a2b545, 'perf sched replay' is still broken
(but 'perf report' works) if perf.data was recorded on another machine. For example,
native replay is:
run measurement overhead: 0 nsecs
sleep measurement overhead: 112071 nsecs
the run test took 1007080 nsecs
the sleep test took 1159668 nsecs
nr_run_events: 141
nr_sleep_events: 147
nr_wakeup_events: 73
target-less wakeups: 25
multi-target wakeups: 2
task 0 ( <unknown>: 4645), nr_events: 4
task 1 ( perf: 4646), nr_events: 190
task 2 ( swapper/1: 0), nr_events: 33
task 3 ( kworker/1:1: 20), nr_events: 126
task 4 ( sshd: 1881), nr_events: 32
task 5 ( kswapd0: 388), nr_events: 3
------------------------------------------------------------
#1 : 29.663, ravg: 29.66, cpu: 54.38 / 54.38
#2 : 28.442, ravg: 29.54, cpu: 53.38 / 54.28
#3 : 28.564, ravg: 29.44, cpu: 54.02 / 54.26
#4 : 28.290, ravg: 29.33, cpu: 53.50 / 54.18
#5 : 29.877, ravg: 29.38, cpu: 53.16 / 54.08
#6 : 32.227, ravg: 29.67, cpu: 53.74 / 54.04
#7 : 27.588, ravg: 29.46, cpu: 52.67 / 53.91
#8 : 30.762, ravg: 29.59, cpu: 53.44 / 53.86
#9 : 28.381, ravg: 29.47, cpu: 53.04 / 53.78
#10 : 28.473, ravg: 29.37, cpu: 53.71 / 53.77
"Cross-replaying" of the same perf.data is:
run measurement overhead: 65 nsecs
sleep measurement overhead: 55825 nsecs
the run test took 1000140 nsecs
the sleep test took 1064293 nsecs
nr_run_events: 0
nr_sleep_events: 0
nr_wakeup_events: 0
------------------------------------------------------------
#1 : 0.007, ravg: 0.01, cpu: 0.00 / 0.00
#2 : 0.001, ravg: 0.01, cpu: 0.00 / 0.00
#3 : 0.001, ravg: 0.01, cpu: 0.00 / 0.00
#4 : 0.001, ravg: 0.01, cpu: 0.00 / 0.00
#5 : 0.001, ravg: 0.01, cpu: 0.00 / 0.00
#6 : 0.001, ravg: 0.00, cpu: 0.00 / 0.00
#7 : 0.001, ravg: 0.00, cpu: 0.00 / 0.00
#8 : 0.001, ravg: 0.00, cpu: 0.00 / 0.00
#9 : 0.001, ravg: 0.00, cpu: 0.00 / 0.00
#10 : 0.001, ravg: 0.00, cpu: 0.00 / 0.00
Dmitry
next prev parent reply other threads:[~2012-07-02 8:01 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-27 19:20 [GIT PULL 0/7] perf/core improvements and fixes Arnaldo Carvalho de Melo
2012-06-27 19:20 ` [PATCH 1/7] perf evsel: Fix a build failure on cross compilation Arnaldo Carvalho de Melo
2012-06-27 19:20 ` [PATCH 2/7] perf test: Fix parse events test to follow proper raw event name Arnaldo Carvalho de Melo
2012-06-27 19:20 ` [PATCH 3/7] perf tools: Stop using a global trace events description list Arnaldo Carvalho de Melo
2012-06-27 19:20 ` [PATCH 4/7] perf symbols: Follow .gnu_debuglink section to find separate symbols Arnaldo Carvalho de Melo
2012-06-27 19:20 ` [PATCH 5/7] perf bench: Documentation update Arnaldo Carvalho de Melo
2012-06-27 19:20 ` [PATCH 6/7] perf report: Delay sample_type checks in pipe mode Arnaldo Carvalho de Melo
2012-06-27 19:20 ` [PATCH 7/7] perf tools: Trivial build fix Arnaldo Carvalho de Melo
2012-06-29 13:12 ` [GIT PULL 0/7] perf/core improvements and fixes Ingo Molnar
2012-07-02 8:01 ` Dmitry Antipov [this message]
-- strict thread matches above, loose matches on Subject: below --
2017-04-13 19:35 Arnaldo Carvalho de Melo
2017-04-14 16:07 ` Arnaldo Carvalho de Melo
2017-04-17 8:15 ` Ingo Molnar
2015-11-23 21:53 Arnaldo Carvalho de Melo
2015-11-24 8:10 ` Ingo Molnar
2015-11-24 8:28 ` Jiri Olsa
2015-11-24 8:42 ` Ingo Molnar
2015-11-24 9:26 ` Jiri Olsa
2015-11-24 9:47 ` Jiri Olsa
2015-11-26 11:00 ` Ingo Molnar
2015-11-26 12:47 ` Jiri Olsa
2015-11-26 7:56 ` Ingo Molnar
2015-11-26 8:12 ` Ingo Molnar
2015-11-26 9:09 ` Jiri Olsa
2015-11-24 10:28 ` Jiri Olsa
2015-11-26 8:13 ` Ingo Molnar
2015-06-12 2:15 Arnaldo Carvalho de Melo
2015-06-12 8:09 ` Ingo Molnar
2015-04-10 21:40 Arnaldo Carvalho de Melo
2015-04-11 6:33 ` Ingo Molnar
2014-06-23 7:59 Jiri Olsa
2014-06-25 5:44 ` Ingo Molnar
2014-04-28 11:59 Jiri Olsa
2014-04-29 6:42 ` Ingo Molnar
2013-11-07 15:04 Arnaldo Carvalho de Melo
2013-11-07 15:26 ` Ingo Molnar
2012-03-05 15:55 Arnaldo Carvalho de Melo
2012-03-05 16:02 ` Ingo Molnar
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