linux-kernel - Re: [Suggestion/Problems] perf annoate: Some problems related to the source code view and Improvement of it with line numbers

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Date:   Fri, 17 Feb 2017 11:33:29 +0900
From:   Taeung Song <treeze.taeung@...il.com>
To:     Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
Cc:     Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>,
        perf group <linux-perf-users@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [Suggestion/Problems] perf annoate: Some problems related to the
 source code view and Improvement of it with line numbers

Hi, Arnaldo :)

Regarding perf annotate:

1) Problem : wrong line numbers on perf-annotate (both stdio and TUI)
2) Problem : wrong sum of overhead(percent) matching source lines
3) Suggestion : new option showing only source code per function
                 with overhead info (to be more readable :) )

I'll send the patchset for them, maybe it'll a bit take time.
But I won't be long..

Thanks,
Taeung

On 02/15/2017 11:24 PM, Taeung Song wrote:
>
>
> On 02/15/2017 10:24 PM, Arnaldo Carvalho de Melo wrote:
>> Em Wed, Feb 15, 2017 at 09:34:51PM +0900, Taeung Song escreveu:
>>> > Hi all :)
>>> >
>>> > I found some problems about showing line numbers of perf-annotate.
>>> > and I have a suggestion about perf-annotate.
>>> >
>>> > Sure, I have a plan to send the patchset about that.
>>> > But I'd like to know other opinions about that before sending the
>>> patchset.
>>> > :)
>> Humm, TLDR, please try to find one problem, describe it precisely, show
>> before and after results (in the changeset message), and send it, rinse,
>> repeat.
>>
>> For instance, if the line numbers are different in --stdio and --tui,
>> that is a problem, state that, show the output (as you did below), put
>> it in a patch, send it.
>>
>
> Okey it was too long.
>
> I'll separate the contents into simple parts
> and send a patch with things you said :)
> for easy review.
>
> Thanks,
> Taeung