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-rw-r--r--tools/perf/Documentation/perf-top.txt3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 3265b1070518..9e5b07eb7d35 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -168,7 +168,7 @@ Default is to monitor all CPUS.
Accumulate callchain of children to parent entry so that then can
show up in the output. The output will have a new "Children" column
and will be sorted on the data. It requires -g/--call-graph option
- enabled.
+ enabled. See the `overhead calculation' section for more details.
--max-stack::
Set the stack depth limit when parsing the callchain, anything
@@ -234,6 +234,7 @@ INTERACTIVE PROMPTING KEYS
Pressing any unmapped key displays a menu, and prompts for input.
+include::callchain-overhead-calculation.txt[]
SEE ALSO
--------