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
Cc: Arun Sharma <asha...@fb.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
tools/perf/builtin-top.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 439e000b0f39..2e521d00c0a4 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -87,6 +87,16 @@ static void perf_top__sig_winch(int sig __maybe_unused,
perf_top__update_print_entries(top);
}
+static int top__config(const char *var, const char *value, void *cb)
+{
+ if (!strcmp(var, "top.children")) {
+ symbol_conf.cumulate_callchain = perf_config_bool(var, value);
+ return 0;
+ }
+
+ return perf_default_config(var, value, cb);
+}
+
static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he)
{
struct symbol *sym;
@@ -1125,6 +1135,8 @@ int cmd_top(int argc, const char **argv, const char
*prefix __maybe_unused)
if (top.evlist == NULL)
return -ENOMEM;
+ perf_config(top__config, &top);
+
argc = parse_options(argc, argv, options, top_usage, 0);
if (argc)
usage_with_options(top_usage, options);
--
1.7.11.7
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