linux-kernel - Re: [PATCH v4 5/9] perf annotate stdio: Support --show-nr-samples option

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Message-ID: <20170728162617.GC12201@kernel.org>
Date:   Fri, 28 Jul 2017 13:26:17 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Taeung Song <treeze.taeung@...il.com>
Cc:     linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>,
        Milian Wolff <milian.wolff@...b.com>,
        Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH v4 5/9] perf annotate stdio: Support --show-nr-samples
 option

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?

- Arnaldo
 
> Cc: Namhyung Kim <namhyung@...nel.org>
> Cc: Milian Wolff <milian.wolff@...b.com>
> Cc: Jiri Olsa <jolsa@...hat.com>
> Signed-off-by: Taeung Song <treeze.taeung@...il.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