[PATCH 21/27] perf top: Add top.children config option

From: Namhyung Kim
Date: Wed May 28 2014 - 23:59:54 EST


Add top.children config option for setting default value of
callchain accumulation. It affects the output only if one of
-g or --call-graph option is given as well.

A user can write .perfconfig file like below to enable accumulation
by default:

$ cat ~/.perfconfig
[top]
children = true

And it can be disabled through command line:

$ perf top --no-children

Tested-by: Arun Sharma <asharma@xxxxxx>
Tested-by: Rodrigo Campos <rodrigo@xxxxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
tools/perf/builtin-top.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index ac6b54396828..2efeb784166f 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1003,6 +1003,10 @@ static int perf_top_config(const char *var, const char *value, void *cb)

if (!strcmp(var, "top.call-graph"))
return record_parse_callchain(value, &top->record_opts);
+ if (!strcmp(var, "top.children")) {
+ symbol_conf.cumulate_callchain = perf_config_bool(var, value);
+ return 0;
+ }

return perf_default_config(var, value, cb);
}
--
1.9.2

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