Re: [RFC/PATCHSET 00/14] perf report: Add support to accumulate histperiods (v2)

[Frederic Weisbecker]

On Thu, Oct 31, 2013 at 09:09:32AM +0100, Ingo Molnar wrote:
> 
> 
> * Namhyung Kim <namhyung@xxxxxxxxxx> wrote:
> 
> > When the -g cumulative option is given, it'll be shown like this:
> > 
> >   $ perf report -g cumulative --stdio
> > 
> >   # Overhead  Overhead (Acc)  Command      Shared Object                   Symbol
> >   # ........  ..............  .......  .................  .......................
> >   #
> >        0.00%          88.29%      abc  libc-2.17.so       [.] __libc_start_main  
> >        0.00%          88.29%      abc  abc                [.] main               
> >        0.00%          88.29%      abc  abc                [.] c                  
> >        0.00%          88.29%      abc  abc                [.] b                  
> >       88.29%          88.29%      abc  abc                [.] a                  
> >        0.00%          11.61%      abc  ld-2.17.so         [k] _dl_sysdep_start   
> >        0.00%           9.43%      abc  ld-2.17.so         [.] dl_main            
> >        9.43%           9.43%      abc  ld-2.17.so         [.] _dl_relocate_object
> >        2.27%           2.27%      abc  [kernel.kallsyms]  [k] page_fault         
> >        0.00%           2.18%      abc  ld-2.17.so         [k] _dl_start_user     
> >        0.00%           0.10%      abc  ld-2.17.so         [.] _start             
> > 
> > As you can see __libc_start_main -> main -> c -> b -> a callchain 
> > show up in the output.
> 
> This looks really useful!
> 
> A couple of details:
> 
> 1)
> 
> This is pretty close to SysProf output, right? So why not use the 
> well-known SysProf naming and call the first column 'self' and the 
> second column 'total'? I think those names are pretty intuitive and 
> it would help people who come from SysProf over to perf.

Makes sense. Or "Overhead" and "Total overhead"?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/