perf callchain: Support handling complete branch stacks as histograms

[mirror_ubuntu-artful-kernel.git] / tools / perf / Documentation / perf-report.txt

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 0927bf4e6c2a6c78b30cc185bf0c4637b2c5082e..22706beffabcf41c0c7dac0fa51b4314b9d242bd 100644 (file)
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -159,7 +159,7 @@ OPTIONS
 --dump-raw-trace::
         Dump raw trace in ASCII.
 
--g [type,min[,limit],order[,key]]::
+-g [type,min[,limit],order[,key][,branch]]::
 --call-graph::
         Display call chains using type, min percent threshold, optional print
        limit and order.
@@ -177,6 +177,11 @@ OPTIONS
        - function: compare on functions
        - address: compare on individual code addresses
 
+       branch can be:
+       - branch: include last branch information in callgraph
+       when available. Usually more convenient to use --branch-history
+       for this.
+
        Default: fractal,0.5,callee,function.
 
 --children::