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authorNamhyung Kim <namhyung@gmail.com>2011-12-13 00:16:50 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-12-20 13:28:13 -0200
commit6581f6e35f7d0338f699fce660adb48e863f2b59 (patch)
tree415d6b105e4f714f7d5c1cd6a297eadc45e95e8f /tools/perf/Documentation
parentf3bda2c9a689b38c059f7cb2d761ff58a2996370 (diff)
perf report: Document '--call-graph' for optional print_limit argument
The '--call-graph' command line option can receive undocumented optional print_limit argument. Besides, use strtoul() to parse the option since its type is u32. Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1323703017-6060-2-git-send-email-namhyung@gmail.com Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
-rw-r--r--tools/perf/Documentation/perf-report.txt5
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index dc85392a5ac..35af0dc8ccb 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -80,9 +80,10 @@ OPTIONS
--dump-raw-trace::
Dump raw trace in ASCII.
--g [type,min,order]::
+-g [type,min[,limit],order]::
--call-graph::
- Display call chains using type, min percent threshold and order.
+ Display call chains using type, min percent threshold, optional print
+ limit and order.
type can be either:
- flat: single column, linear exposure of call chains.
- graph: use a graph tree, displaying absolute overhead rates.