From: Kim SeonYoung Date: Fri, 30 Sep 2016 00:16:42 +0000 (-0700) Subject: perf report/top: Add a tip about source line numbers with overhead X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=8649b6434ebc184e632a510c4121899481409c15;p=openwrt%2Fstaging%2Fblogic.git perf report/top: Add a tip about source line numbers with overhead 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 explains the feature of --sort srcline. Signed-off-by: Seonyoung Kim Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Taeung Song Link: http://lkml.kernel.org/r/1475194602-5596-1-git-send-email-adamas0414@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/Documentation/tips.txt b/tools/perf/Documentation/tips.txt index 5950b5a24efd..b0311248407f 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 If you prefer Intel style assembly, try: perf annotate -M intel For hierarchical output, try: perf report --hierarchy +Order by the overhead of source file name and line number: perf report -s srcline