linux-kernel - Re: [PATCH v2 0/9] perf annotate: Fix --show-total-period and support --show-nr-samples

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Date:   Thu, 20 Jul 2017 02:05:24 +0900
From:   Taeung Song <treeze.taeung@...il.com>
To:     Namhyung Kim <namhyung@...nel.org>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...hat.com>,
        Milian Wolff <milian.wolff@...b.com>, kernel-team@....com
Subject: Re: [PATCH v2 0/9] perf annotate: Fix --show-total-period and support
 --show-nr-samples

Hi Namhyung,

I'm late.
Thanks for your review.

On 07/19/2017 01:07 AM, Namhyung Kim wrote:
> Hi Taeung,
> 
> On Fri, Jul 14, 2017 at 02:45:44AM +0900, Taeung Song wrote:
>> Hello,
>>
>> Currently the --show-total-period option of perf-annotate
>> is different from perf-report's.
>>
>> It has two problem like below:
>> (Reported by Namhyung Kim and Milian Wolff)
>>
>>    1) Wrong column i.e. 'Percent' (even though using --show-total-period)
>>    2) Show number of samples, not period
>>
>> So fix this option on both the annotate stdio and TUI browser.
>> And support --show-nr-samples into perf-anntate
>> so that it correpond with perf-report's.
>>
>> The code is available on 'perf/ann-fix-period-v2' branch at
>>
>>    git://github.com/taeung/linux-perf.git
>>
>> Thanks,
>> Taeung
>>
>> v2:
>> - Separate the first patch into respective paches for easy review (Arnaldo)
>> - Add a patch to introduce 'struct sym_hist_entry' (Arnaldo)
>> - disasm__calc_percent() could receive a pointer to a struct sym_hist_entry
>>    instead of two pointer (Arnaldo)
>> - Add a sym_hist_entry into struct disasm_line_samples (Arnaldo)
>> - Fix a case that can't switch 'the total period view' to
>>    'the number of samples view' on the annotate TUI browser (Arnaldo)
>> - Calculate the percentage with 'period', not number of samples
>>
>> Taeung Song (9):
>>    perf annotate: Introduce struct sym_hist_entry
>>    perf annotate: Properly rename 'sum' to 'total_samples' in struct
>>      sym_hist
>>    perf annotate: Fix wrong --show-total-period option showing number of
>>      samples
>>    perf annotate: Show the proper header when using --show-total-period
>>    perf anntoate browser: Fix the toggle total period view to show
>>      period, not number of samples
>>    perf annotate browser: Show the proper header when using
>>      --show-total-period
>>    perf annotate: Support --show-nr-samples option
>>    perf annotate browser: Support the toggle number of samples with a 'e'
>>      hotkey
>>    perf annotate: Use the sample period when calculating the percentage
> 
> It seems I didn't receive the patch 3 and 5 for some reason.  Anyway
> I have a few comments.
> 
> Thanks,
> Namhyung
> 
> 

Oops, I won't miss out your email when sending the patchset v3.

Thanks,
Taeung

>>
>>   tools/perf/builtin-annotate.c     |   6 +-
>>   tools/perf/builtin-report.c       |  13 ++--
>>   tools/perf/builtin-top.c          |   6 +-
>>   tools/perf/ui/browsers/annotate.c |  42 ++++++++++---
>>   tools/perf/ui/gtk/annotate.c      |   4 +-
>>   tools/perf/util/annotate.c        | 125 ++++++++++++++++++++++++++------------
>>   tools/perf/util/annotate.h        |  15 +++--
>>   7 files changed, 148 insertions(+), 63 deletions(-)
>>
>> -- 
>> 2.7.4
>>