Re: [PATCH] perf stat: Set child_pid after perf_evlist__prepare_workload()

From: David Ahern
Date: Mon Sep 30 2013 - 09:47:49 EST

On 9/30/13 3:01 AM, Namhyung Kim wrote:
From: Namhyung Kim <>

The commit acf2892270dc ("perf stat: Use perf_evlist__prepare/
start_workload()") converted to use the function but forgot to update
child_pid. Fix it.

Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
tools/perf/builtin-stat.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index f686d5ff594e..5098f144b92d 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -457,6 +457,7 @@ static int __run_perf_stat(int argc, const char **argv)
perror("failed to prepare workload");
return -1;
+ child_pid = evsel_list->;

if (group)

Interesting. I can't find a test case where is matters ... perhaps a convenience of waitpid taking -1.

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