perf tools: Explicitly document that --children is enabled by default

The fact that the --children option is enabled by default is buried deep
at the end of the help page, in the overhead calculation section. This
make it explicit right where the option is listed, following the same
way other default options are described

Signed-off-by: Yannick Brosseau <scientist@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel-team@fb.com
Link: http://lkml.kernel.org/r/20161202160732.29058-1-scientist@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 3a166ae..f2914f0 100644 (file)
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -239,7 +239,8 @@ OPTIONS
        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 callchains are recorded.
-       See the `overhead calculation' section for more details.
+       See the `overhead calculation' section for more details. Enabled by
+       default, disable with --no-children.
 
 --max-stack::
        Set the stack depth limit when parsing the callchain, anything

diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 91d638d..e71d638 100644 (file)
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -170,6 +170,7 @@ Default is to monitor all CPUS.
        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.  See the `overhead calculation' section for more details.
+       Enabled by default, disable with --no-children.
 
 --max-stack::
        Set the stack depth limit when parsing the callchain, anything