linux-kernel - Re: [PATCH/RFC 00/14] perf, diff: Support for multiple files

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Date:	Wed, 28 Nov 2012 14:56:55 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Namhyung Kim <namhyung@...nel.org>
Subject: Re: [PATCH/RFC 00/14] perf, diff: Support for multiple files

aargh.. fixed subject.. copy&paste error ;-)

also patches are available here:

git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/linux.git
perf/multi2

thanks,
jirka

On Wed, Nov 28, 2012 at 02:52:35PM +0100, Jiri Olsa wrote:
> hi,
> adding support to display diff for more than 2 perf.data files.
> Sending as RFC, since the change touches lot of hists code,
> so I might be breaking something I missed.. still testing.
> 
> Also it could colide with Namhyung changes for group report
> wrt patches 7 and 8, where I changed the linking of matching
> hists entries.
> 
> The doc was updated with info about current perf diff processing.
> 
> Attached patches:
>   01/14 perf tool: Introduce perf_hpp__list for period related columns
>   02/14 perf tool: Add struct perf_hpp_fmt into hpp callbacks
>   03/14 perf tool: Fix period symbol_conf.field_sep display
>   04/14 perf diff: Remove displacement from struct hist_entry_diff
>   05/14 perf diff: Change compute methods to work with pair directly
>   06/14 perf diff: Change formula methods to work with pair directly
>   07/14 perf diff: Add callback to hists__match/hists__link functions
>   08/14 perf diff: Change diff command to work over multiple data files
>   09/14 perf diff: Update perf diff documentation for multiple data comparison
>   10/14 perf tool: Centralize default columns init in perf_hpp__init
>   11/14 perf diff: Making compute functions static
>   12/14 perf diff: Display data file info ahead of the diff output
>   13/14 perf diff: Display zero calculation results
>   14/14 perf diff: Add generic order option for compute sorting
> 
> Example of multiple perf diff output:
> 
>   $ perf diff perf.data.[123456]
>   # Event 'cycles:u'
>   #
>   # Data files:
>   #  [0] perf.data.1
>   #  [1] perf.data.2
>   #  [2] perf.data.3
>   #  [3] perf.data.4
>   #  [4] perf.data.5
>   #  [5] perf.data.6
>   #
>   # Baseline/0  Delta/1  Delta/2  Delta/3  Delta/4  Delta/5      Shared Object                     Symbol
>   # ..........  .......  .......  .......  .......  .......  .................  .........................
>   #
>                                                     +73.05%  [kernel.kallsyms]  [k] page_fault           
>                                                     +26.16%  ld-2.15.so         [.] _dl_next_ld_env_entry
>                          +15.40%                             ld-2.15.so         [.] _dl_sysdep_start     
>         71.48%           -26.52%                             libc-2.15.so       [.] __strcmp_sse2        
>         27.69%   -1.65%            -4.83%   -4.68%           ld-2.15.so         [.] dl_main              
>          0.82%   -0.05%   -0.34%   -0.15%   -0.13%   -0.03%  ld-2.15.so         [.] _start               
>                          +39.15%                             libc-2.15.so       [.] error_tail           
>                 +73.18%                                      libc-2.15.so       [.] __strcasecmp_l_sse2  
>                                            +76.30%           libc-2.15.so       [.] __stpcpy_sse2        
>                                   +76.46%                    libc-2.15.so       [.] _IO_getline_info     
> 
> thanks,
> jirka
> 
> Cc: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: Paul Mackerras <paulus@...ba.org>
> Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
> Cc: Frederic Weisbecker <fweisbec@...il.com>
> Cc: Namhyung Kim <namhyung@...nel.org>
> ---
>  tools/perf/Documentation/perf-diff.txt |  77 ++++++++--
>  tools/perf/builtin-diff.c              | 747 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------------
>  tools/perf/ui/browsers/hists.c         |  22 +--
>  tools/perf/ui/gtk/browser.c            |  26 +---
>  tools/perf/ui/hist.c                   | 392 ++++++++++++++---------------------------------
>  tools/perf/ui/stdio/hist.c             |  17 +--
>  tools/perf/util/hist.c                 |  29 ++--
>  tools/perf/util/hist.h                 |  42 ++---
>  tools/perf/util/sort.h                 |  38 ++---
>  9 files changed, 855 insertions(+), 535 deletions(-)
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