From: Namhyung Kim <namhyung@kernel.org>
To: Jiri Olsa <jolsa@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@elte.hu>, Paul Mackerras <paulus@samba.org>,
Corey Ashford <cjashfor@linux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@gmail.com>
Subject: Re: [PATCH 09/14] perf diff: Update perf diff documentation for multiple data comparison
Date: Thu, 29 Nov 2012 20:52:18 +0900 [thread overview]
Message-ID: <87ip8oocct.fsf@sejong.aot.lge.com> (raw)
In-Reply-To: <1354110769-2998-10-git-send-email-jolsa@redhat.com> (Jiri Olsa's message of "Wed, 28 Nov 2012 14:52:44 +0100")
On Wed, 28 Nov 2012 14:52:44 +0100, Jiri Olsa wrote:
> +COMPARISON
> +----------
> +The comparison is governed by the baseline file. The baseline perf.data
> +file is iterated for samples. All other perf.data files specified on
> +the command line are searched for the baseline sample pair. If the pair
> +is found, specified computation is made and result is displayed.
> +
> +All samples from non-baseline perf.data files, that do not match any
> +baseline entry, are displayed with empty space within baseline column
> +and possible computation results (delta) in their related column.
> +
> +Example files samples:
> +- file A with samples f1, f2, f3, f4, f6
> +- file B with samples f2, f4, f5
> +- file C with samples f1, f2, f5
> +
> +Example output:
> + x - computation takes place for pair
> + b - baseline sample percentage
> +
> +- perf diff A B C
> +
> + baseline/A compute/B compute/C samples
> + ---------------------------------------
> + b x f1
> + b x x f2
> + b f3
> + b x f4
> + b f6
> + x x f5
> +
> +- perf diff B A C
> +
> + baseline/B compute/A compute/C samples
> + ---------------------------------------
> + b x x f2
> + b x f4
> + b x f5
> + x x f1
> + x f3
> + x f6
> +
> +- perf diff C B A
> +
> + baseline/C compute/B compute/A samples
> + ---------------------------------------
> + b x f1
> + b x x f2
> + b x f5
> + x f3
> + x x f4
> + x f6
> +
It seems not work this way. When I test multiple diff, I didn't get
consecutive 'b's on the baseline column like your example in the cover
letter of this series.
Thanks,
Namhyung
next prev parent reply other threads:[~2012-11-29 11:52 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-28 13:52 [PATCH/RFC 00/14] perf, tool: Fix endian issues Jiri Olsa
2012-11-28 13:52 ` [PATCH 01/14] perf tool: Introduce perf_hpp__list for period related columns Jiri Olsa
2012-11-29 7:44 ` Namhyung Kim
2012-11-29 10:52 ` Namhyung Kim
2012-11-28 13:52 ` [PATCH 02/14] perf tool: Add struct perf_hpp_fmt into hpp callbacks Jiri Olsa
2012-11-28 13:52 ` [PATCH 03/14] perf tool: Fix period symbol_conf.field_sep display Jiri Olsa
2012-11-29 7:56 ` Namhyung Kim
2012-11-29 11:53 ` Jiri Olsa
2012-11-29 13:40 ` [PATCH] perf hists: Fix period symbol_conf.field_sep display, again Jiri Olsa
2012-11-29 17:35 ` Arnaldo Carvalho de Melo
2012-11-28 13:52 ` [PATCH 04/14] perf diff: Remove displacement from struct hist_entry_diff Jiri Olsa
2012-11-29 8:00 ` Namhyung Kim
2013-01-24 18:50 ` [tip:perf/core] " tip-bot for Jiri Olsa
2012-11-28 13:52 ` [PATCH 05/14] perf diff: Change compute methods to work with pair directly Jiri Olsa
2012-11-29 11:15 ` Namhyung Kim
2013-01-24 18:51 ` [tip:perf/core] " tip-bot for Jiri Olsa
2012-11-28 13:52 ` [PATCH 06/14] perf diff: Change formula " Jiri Olsa
2012-11-29 11:15 ` Namhyung Kim
2013-01-24 18:52 ` [tip:perf/core] " tip-bot for Jiri Olsa
2012-11-28 13:52 ` [PATCH 07/14] perf diff: Add callback to hists__match/hists__link functions Jiri Olsa
2012-11-28 13:52 ` [PATCH 08/14] perf diff: Change diff command to work over multiple data files Jiri Olsa
2012-11-29 11:37 ` Namhyung Kim
2012-11-29 11:53 ` Jiri Olsa
2012-11-28 13:52 ` [PATCH 09/14] perf diff: Update perf diff documentation for multiple data comparison Jiri Olsa
2012-11-29 11:52 ` Namhyung Kim [this message]
2012-11-29 12:06 ` Jiri Olsa
2012-11-28 13:52 ` [PATCH 10/14] perf tool: Centralize default columns init in perf_hpp__init Jiri Olsa
2012-11-29 11:55 ` Namhyung Kim
2012-11-29 12:13 ` Jiri Olsa
2012-11-30 5:06 ` Namhyung Kim
2012-11-30 11:56 ` Jiri Olsa
2012-11-28 13:52 ` [PATCH 11/14] perf diff: Making compute functions static Jiri Olsa
2012-11-28 13:52 ` [PATCH 12/14] perf diff: Display data file info ahead of the diff output Jiri Olsa
2012-11-28 13:52 ` [PATCH 13/14] perf diff: Display zero calculation results Jiri Olsa
2012-11-28 13:52 ` [PATCH 14/14] perf diff: Add generic order option for compute sorting Jiri Olsa
2012-11-29 12:02 ` Namhyung Kim
2012-11-29 12:19 ` Jiri Olsa
2012-11-28 13:56 ` [PATCH/RFC 00/14] perf, diff: Support for multiple files Jiri Olsa
2012-11-28 15:57 ` Jiri Olsa
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