perf report: Update documention of --percent-limit option

The --percent-limit option was changed to be applied to callchains as
well as to hist entries recently, but it missed to update the doc.

Reported-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 1cb8fac596b140b74d149cd25763e23230d0edb7..89cab84e92fdad5ed705e2c810d24ed45d329364 100644 (file)
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -351,7 +351,10 @@ OPTIONS
 
 --percent-limit::
        Do not show entries which have an overhead under that percent.
-       (Default: 0).
+       (Default: 0).  Note that this option also sets the percent limit (threshold)
+       of callchains.  However the default value of callchain threshold is
+       different than the default value of hist entries.  Please see the
+       --call-graph option for details.
 
 --percentage::
        Determine how to display the overhead percentage of filtered entries.