diff --git a/[refs] b/[refs]
index 2a3feb8afd45..7f1362e1fffc 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 84c7a21791eb2e962a27e19bab5b77d5d9e13a34
+refs/heads/master: 5efe08cf685f33f562566dc68b6077b6f6a4f706
diff --git a/trunk/tools/perf/builtin-lock.c b/trunk/tools/perf/builtin-lock.c
index 3b304ed4d2e9..d7dde9cbbdf4 100644
--- a/trunk/tools/perf/builtin-lock.c
+++ b/trunk/tools/perf/builtin-lock.c
@@ -733,8 +733,8 @@ static void print_bad_events(int bad, int total)
 		{ "acquire", "acquired", "contended", "release" };
 
 	pr_info("\n=== output for debug===\n\n");
-	pr_info("bad:%d, total:%d\n", bad, total);
-	pr_info("bad rate:%f\n", (double)(bad / total));
+	pr_info("bad: %d, total: %d\n", bad, total);
+	pr_info("bad rate: %f %%\n", (double)bad / (double)total * 100);
 	pr_info("histogram of events caused bad sequence\n");
 	for (i = 0; i < BROKEN_MAX; i++)
 		pr_info(" %10s: %d\n", name[i], bad_hist[i]);