linux-kernel - Re: [PATCH 7/7] perf report: Enable group view with hierarchy

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Date:   Mon, 12 Sep 2016 11:28:44 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Namhyung Kim <namhyung@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Jiri Olsa <jolsa@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH 7/7] perf report: Enable group view with hierarchy

Em Mon, Sep 12, 2016 at 03:19:58PM +0900, Namhyung Kim escreveu:
> Now all missing pieces are implemented, let's enable it.  An example
> output below:

So. what are those events? What was the command line that produced the
'perf.data' file that was used?

- Arnaldo
 
>   $ perf report --hierarchy --stdio
>   ...
>   #               Overhead  Command / Shared Object / Symbol
>   # ......................  ..................................
>   #
>       25.74%  27.18%        sh
>          19.96%  24.14%        libc-2.24.so
>             9.55%  14.64%        [.] __strcmp_sse2
>             1.54%   0.00%        [.] __tfind
>             1.07%   1.13%        [.] _int_malloc
>             0.95%   0.00%        [.] __strchr_sse2
>             0.89%   1.39%        [.] __tsearch
>             0.76%   0.00%        [.] strlen
>   ...
> 
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
>  tools/perf/builtin-report.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
> index 1a07c4cdf6ed..6e88460cd13d 100644
> --- a/tools/perf/builtin-report.c
> +++ b/tools/perf/builtin-report.c
> @@ -935,7 +935,6 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
>  
>  	if (symbol_conf.report_hierarchy) {
>  		/* disable incompatible options */
> -		symbol_conf.event_group = false;
>  		symbol_conf.cumulate_callchain = false;
>  
>  		if (field_order) {
> -- 
> 2.9.3