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authorNamhyung Kim <namhyung@kernel.org>2016-12-06 12:40:05 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-12-07 12:00:34 -0300
commitb336352b417edd8c058c9e09d136728b6e2ff56d (patch)
tree8fabbd3039798fc3e1ddabd3f8f48c23a1f1ba96 /tools/perf/builtin-sched.c
parent5d92d96a947a5d0d83710d11750bb29a0c1b985d (diff)
perf sched timehist: Cleanup idle_max_cpu handling
It treats the idle_max_cpu little bit confusingly IMHO. Let's make it more straight forward. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20161206034010.6499-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-sched.c')
-rw-r--r--tools/perf/builtin-sched.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index c8b3e6c330c3..1a3f1be93372 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -2010,7 +2010,7 @@ static int init_idle_threads(int ncpu)
if (!idle_threads)
return -ENOMEM;
- idle_max_cpu = ncpu - 1;
+ idle_max_cpu = ncpu;
/* allocate the actual thread struct if needed */
for (i = 0; i < ncpu; ++i) {
@@ -2031,7 +2031,7 @@ static void free_idle_threads(void)
if (idle_threads == NULL)
return;
- for (i = 0; i <= idle_max_cpu; ++i) {
+ for (i = 0; i < idle_max_cpu; ++i) {
if ((idle_threads[i]))
thread__delete(idle_threads[i]);
}
@@ -2054,8 +2054,7 @@ static struct thread *get_idle_thread(int cpu)
return NULL;
idle_threads = (struct thread **) p;
- i = idle_max_cpu ? idle_max_cpu + 1 : 0;
- for (; i < j; ++i)
+ for (i = idle_max_cpu; i < j; ++i)
idle_threads[i] = NULL;
idle_max_cpu = j;
@@ -2495,7 +2494,7 @@ static void timehist_print_summary(struct perf_sched *sched,
return;
printf("\nIdle stats:\n");
- for (i = 0; i <= idle_max_cpu; ++i) {
+ for (i = 0; i < idle_max_cpu; ++i) {
t = idle_threads[i];
if (!t)
continue;