From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Jiri Olsa <jolsa@kernel.org>,
linux-kernel@vger.kernel.org, "Liang, Kan" <kan.liang@intel.com>
Subject: Re: Implement lbr-as-callgraph v10
Date: Fri, 21 Nov 2014 17:30:57 -0300 [thread overview]
Message-ID: <20141121203057.GD18625@kernel.org> (raw)
In-Reply-To: <20141120193347.GL3790@kernel.org>
Em Thu, Nov 20, 2014 at 04:33:47PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Wed, Nov 19, 2014 at 10:48:22PM +0100, Andi Kleen escreveu:
> > > > directory since I'm comparing the output of --stdio, --tui and --gtk,
> > > > since it looks --gtk is wrong, still unsure about what the problem is in
> > > > that case, but stumbled on:
> > > I need to investigate this further, so I created a perf/branch-history
> > > branch that has the patches I need to test more rebased on top of my
> > > perf/core branch I just pushed out to Ingo.
> > I tested --gtk and I don't see any differences to the console mode
> > with --branch-history. What problem do you see?
> The difference is with --tui, but I haven't checked if this is a problem
> introduced by your patchkit or if this is something that was there
> before it was applied.
So, here it is, --gtk looks like --stdio:
$ perf report --no-children --branch-history --stdio
# Samples: 43 of event 'cycles'
# Event count (approx.): 26843162
#
# Overhead Source:Line Symbol Shared Object
# ........ ........... ......................... ................
#
68.42% tcall.c:5 [.] f2 tcall
|
|--87.65%-- f2 tcall.c:4
| |
| |--67.41%-- f1 tcall.c:10
| | f1 tcall.c:9
| | main tcall.c:17
| | main tcall.c:17
| | main tcall.c:16
| | main tcall.c:16
| | f1 tcall.c:12
| | f1 tcall.c:12
| | f2 tcall.c:6
| | f2 tcall.c:4
| | f1 tcall.c:11
| | f1 tcall.c:11
| | f2 tcall.c:6
| | f2 tcall.c:4
| | f1 tcall.c:10
| |
| --32.59%-- f1 tcall.c:11
| f1 tcall.c:11
| f1 tcall.c:11
| f2 tcall.c:6
| f2 tcall.c:4
| f1 tcall.c:10
| f1 tcall.c:9
| main tcall.c:17
| main tcall.c:17
| main tcall.c:16
| main tcall.c:16
| f1 tcall.c:12
| f1 tcall.c:12
| f2 tcall.c:6
| f2 tcall.c:4
| f1 tcall.c:11
|
--12.35%-- f1 tcall.c:9
main tcall.c:17
main tcall.c:17
main tcall.c:16
main tcall.c:16
f1 tcall.c:12
f1 tcall.c:12
f2 tcall.c:6
f2 tcall.c:4
f1 tcall.c:11
f1 tcall.c:11
f2 tcall.c:6
f2 tcall.c:4
f1 tcall.c:10
f1 tcall.c:9
main tcall.c:17
<SNIP>
But:
$ perf report --no-children --branch-history --tui
# Then expand a few callchains and press 'P' to generate a perf.hist.0
# file:
- 68.42% tcall.c:5 [.] f2 tcall
- f2 tcall.c:4
- 67.41% f1 tcall.c:10
f1 tcall.c:9
main tcall.c:17
main tcall.c:17
main tcall.c:16
main tcall.c:16
f1 tcall.c:12
f1 tcall.c:12
f2 tcall.c:6
f2 tcall.c:4
f1 tcall.c:11
f1 tcall.c:11
f2 tcall.c:6
f2 tcall.c:4
f1 tcall.c:10
- 32.59% f1 tcall.c:11
f1 tcall.c:11
f2 tcall.c:6
f2 tcall.c:4
f1 tcall.c:10
f1 tcall.c:9
main tcall.c:17
main tcall.c:17
main tcall.c:16
main tcall.c:16
f1 tcall.c:12
f1 tcall.c:12
f2 tcall.c:6
f2 tcall.c:4
f1 tcall.c:11
f1 tcall.c:9
main tcall.c:17
main tcall.c:17
main tcall.c:16
main tcall.c:16
f1 tcall.c:12
f1 tcall.c:12
f2 tcall.c:6
f2 tcall.c:4
f1 tcall.c:11
f1 tcall.c:11
f2 tcall.c:6
f2 tcall.c:4
f1 tcall.c:10
f1 tcall.c:9
main tcall.c:17
<SNIP>
Do you see the diff? The 87.65% and 12.35% doesn't appear on the --tui
output.
But I don't know if this is due to your patchkit, trying to check.
- Arnaldo
next prev parent reply other threads:[~2014-11-21 20:31 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-13 2:05 Implement lbr-as-callgraph v10 Andi Kleen
2014-11-13 2:05 ` [PATCH 01/10] perf, tools: Factor out adding new call chain entries Andi Kleen
2014-11-13 19:14 ` Arnaldo Carvalho de Melo
2014-11-20 7:37 ` [tip:perf/core] perf callchain: " tip-bot for Andi Kleen
2014-11-13 2:05 ` [PATCH 02/10] perf, tools: Support handling complete branch stacks as histograms Andi Kleen
2014-11-13 19:14 ` Arnaldo Carvalho de Melo
2014-11-13 19:52 ` Andi Kleen
2014-11-13 20:08 ` Arnaldo Carvalho de Melo
2014-11-13 20:15 ` Andi Kleen
2014-11-13 20:42 ` Arnaldo Carvalho de Melo
2014-12-08 6:53 ` [tip:perf/core] perf callchain: " tip-bot for Andi Kleen
2014-11-13 2:05 ` [PATCH 03/10] perf, tools: Use al.addr to set up call chain Andi Kleen
2014-11-13 19:16 ` Arnaldo Carvalho de Melo
2014-12-11 21:46 ` Jiri Olsa
2014-12-11 22:27 ` Andi Kleen
2014-11-20 7:38 ` [tip:perf/core] perf callchain: " tip-bot for Andi Kleen
2014-11-13 2:05 ` [PATCH 04/10] perf, tools: Add --branch-history option to report Andi Kleen
2014-12-08 6:53 ` [tip:perf/core] perf report: Add --branch-history option tip-bot for Andi Kleen
2014-11-13 2:05 ` [PATCH 05/10] perf, tools: Use a common function to resolve symbol or name Andi Kleen
2014-11-13 19:17 ` Arnaldo Carvalho de Melo
2014-11-20 7:38 ` [tip:perf/core] perf callchain: " tip-bot for Andi Kleen
2014-11-13 2:05 ` [PATCH 06/10] perf, tools: Enable printing the srcline in the history Andi Kleen
2014-11-13 19:20 ` Arnaldo Carvalho de Melo
2014-12-08 6:48 ` [tip:perf/core] perf callchain: " tip-bot for Andi Kleen
2014-11-13 2:05 ` [PATCH 07/10] perf, tools: Only print base source file for srcline Andi Kleen
2014-11-13 19:22 ` Arnaldo Carvalho de Melo
2014-11-20 7:38 ` [tip:perf/core] perf " tip-bot for Andi Kleen
2014-11-13 2:05 ` [PATCH 08/10] perf, tools: Support source line numbers in annotate Andi Kleen
2014-11-13 20:52 ` Arnaldo Carvalho de Melo
2014-11-20 7:39 ` [tip:perf/core] perf annotate: " tip-bot for Andi Kleen
2014-11-13 2:05 ` [PATCH 09/10] tools, perf: Make get_srcline fall back to sym+offset Andi Kleen
2014-12-08 6:49 ` [tip:perf/core] perf callchain: " tip-bot for Andi Kleen
2014-11-13 2:05 ` [PATCH 10/10] tools, perf: Add asprintf replacement Andi Kleen
2014-11-13 20:53 ` Arnaldo Carvalho de Melo
2014-11-13 21:14 ` Andi Kleen
2014-11-17 21:34 ` Implement lbr-as-callgraph v10 Arnaldo Carvalho de Melo
2014-11-18 1:56 ` Andi Kleen
2014-11-18 10:44 ` Jiri Olsa
2014-11-18 11:00 ` Jiri Olsa
2014-11-18 13:37 ` Arnaldo Carvalho de Melo
2014-11-19 15:31 ` Andi Kleen
2014-11-19 6:21 ` Namhyung Kim
2014-11-19 9:23 ` Jiri Olsa
2014-11-19 10:54 ` Jiri Olsa
2014-11-19 14:10 ` Arnaldo Carvalho de Melo
2014-11-19 16:04 ` Arnaldo Carvalho de Melo
2014-11-19 21:48 ` Andi Kleen
2014-11-20 19:33 ` Arnaldo Carvalho de Melo
2014-11-20 20:46 ` Andi Kleen
2014-11-21 20:30 ` Arnaldo Carvalho de Melo [this message]
2014-11-22 1:25 ` Andi Kleen
2014-11-24 7:40 ` Namhyung Kim
2014-11-19 21:50 ` Andi Kleen
2014-11-20 20:36 ` Arnaldo Carvalho de Melo
-- strict thread matches above, loose matches on Subject: below --
2014-09-26 23:37 Andi Kleen
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