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SubjectRe: [PATCH v4 5/9] perf annotate stdio: Support --show-nr-samples option
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On 08/15/2017 01:31 AM, Arnaldo Carvalho de Melo wrote:
> Em Mon, Aug 14, 2017 at 07:42:07PM +0900, Taeung Song escreveu:
>> On 08/01/2017 03:24 PM, Taeung Song wrote:
>>> On 07/29/2017 01:26 AM, Arnaldo Carvalho de Melo wrote:
>>>> Em Fri, Jul 28, 2017 at 01:16:16AM +0900, Taeung Song escreveu:
>>>>> Add --show-nr-samples option to perf-annotate
>>>>> so that it corresponds with perf-report.
>>>>
>>>> So this is not that intuitive, i.e. if one ask for:
>>>>
>>>> perf annotate --show-total-period --show-nr-samples
>>>>
>>>> then both should appear, no?
>
>>> I thought the users can use both --show-total-period and --show-nr-samples,
>>> but perf-annotate can preferentially show the total period view IMHO.
>
> That is inapropriate, if the user asks for both --show-total-period and
> --show-nr-samples, then it either should show both or bail out telling
> that that is not possible.
>
> - Arnaldo
>

ok, got it, I'll send changed this patch based on your comment !

Thanks,
Taeung

>>> What do you think about it ?
>>> we need to prevent users from using both ?
>>>
>>> Thanks,
>>> Taeung
>>
>>
>> ping !
>>
>>>
>>>>> Cc: Namhyung Kim <namhyung@kernel.org>
>>>>> Cc: Milian Wolff <milian.wolff@kdab.com>
>>>>> Cc: Jiri Olsa <jolsa@redhat.com>
>>>>> Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
>>>>> ---
>>>>> tools/perf/builtin-annotate.c | 2 ++
>>>>> tools/perf/util/annotate.c | 6 +++++-
>>>>> 2 files changed, 7 insertions(+), 1 deletion(-)
>>>>>
>>>>> diff --git a/tools/perf/builtin-annotate.c
>>>>> b/tools/perf/builtin-annotate.c
>>>>> index 6db782d..a8e6db2 100644
>>>>> --- a/tools/perf/builtin-annotate.c
>>>>> +++ b/tools/perf/builtin-annotate.c
>>>>> @@ -447,6 +447,8 @@ int cmd_annotate(int argc, const char **argv)
>>>>> "Show event group information together"),
>>>>> OPT_BOOLEAN(0, "show-total-period",
>>>>> &symbol_conf.show_total_period,
>>>>> "Show a column with the sum of periods"),
>>>>> + OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
>>>>> + "Show a column with the number of samples"),
>>>>> OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
>>>>> "'always' (default), 'never' or 'auto' only
>>>>> applicable to --stdio mode",
>>>>> stdio__config_color, "always"),
>>>>> diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
>>>>> index 5125c2b..7032bdc 100644
>>>>> --- a/tools/perf/util/annotate.c
>>>>> +++ b/tools/perf/util/annotate.c
>>>>> @@ -1144,6 +1144,9 @@ static int disasm_line__print(struct
>>>>> disasm_line *dl, struct symbol *sym, u64 st
>>>>> if (symbol_conf.show_total_period)
>>>>> color_fprintf(stdout, color, " %11" PRIu64,
>>>>> sample.period);
>>>>> + else if (symbol_conf.show_nr_samples)
>>>>> + color_fprintf(stdout, color, " %7" PRIu64,
>>>>> + sample.nr_samples);
>>>>> else
>>>>> color_fprintf(stdout, color, " %7.2f", percent);
>>>>> }
>>>>> @@ -1824,7 +1827,8 @@ int symbol__annotate_printf(struct symbol
>>>>> *sym, struct map *map,
>>>>> width *= evsel->nr_members;
>>>>> graph_dotted_len = printf(" %-*.*s| Source code &
>>>>> Disassembly of %s for %s (%" PRIu64 " samples)\n",
>>>>> - width, width, symbol_conf.show_total_period ?
>>>>> "Event count" : "Percent",
>>>>> + width, width, symbol_conf.show_total_period ?
>>>>> "Event count" :
>>>>> + symbol_conf.show_nr_samples ? "Samples" : "Percent",
>>>>> d_filename, evsel_name, h->nr_samples);
>>>>> printf("%-*.*s----\n",
>>>>> --
>>>>> 2.7.4

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