Re: [PATCH] perf report: Add a tip about source line numbers with overhead
From: Arnaldo Carvalho de Melo
Date: Thu Sep 29 2016 - 18:30:37 EST
Em Thu, Sep 29, 2016 at 03:00:33PM -0700, Kim SeonYoung escreveu:
> There is a existing tip as below.
> If you have debuginfo enabled, try: perf report -s sym,srcline
> However this tip only describe a condition to use --sort sym,scrline options.
> So there is lack of explanation in the tip. I think that it would be better to
> add a tip that exactly explain the feature of --sort srcline.
> Signed-off-by: Seonyoung Kim <adamas0414@xxxxxxxxx>
> Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
> Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
> Cc: Taeung Song <taeung@xxxxxxxxxx>
> tools/perf/Documentation/tips.txt | 1 +
> 1 file changed, 1 insertion(+)
> diff --git a/tools/perf/Documentation/tips.txt b/tools/perf/Documentation/tips.txt
> index 5950b5a..0d79eb1 100644
> --- a/tools/perf/Documentation/tips.txt
> +++ b/tools/perf/Documentation/tips.txt
> @@ -28,3 +28,4 @@ To change sampling frequency to 100 Hz: perf record -F 100
> See assembly instructions with percentage: perf annotate <symbol>
> If you prefer Intel style assembly, try: perf annotate -M intel
> For hierarchical output, try: perf report --hierarchy
> +Show source files and line numbers in sequence of overhead, try: perf report -s srcline
Order by the overhead of source file name and line number: 'perf report -s srcline'