Do not update thread stats or show idle summary unless CPU is in
the list of interest.
Fixes: c30d630d1bcf ("perf sched timehist: Add support for filtering on CPU")
Signed-off-by: David Ahern <dsah...@kernel.org>
---
tools/perf/builtin-sched.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 0c7d599fa555..82ee0dfd1831 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -2575,7 +2575,8 @@ static int timehist_sched_change_event(struct perf_tool
*tool,
}
if (!sched->idle_hist || thread->tid == 0) {
- timehist_update_runtime_stats(tr, t, tprev);
+ if (!cpu_list || test_bit(sample->cpu, cpu_bitmap))
+ timehist_update_runtime_stats(tr, t, tprev);
if (sched->idle_hist) {
struct idle_thread_runtime *itr = (void *)tr;
@@ -2848,6 +2849,9 @@ static void timehist_print_summary(struct perf_sched
*sched,
printf("\nIdle stats:\n");
for (i = 0; i < idle_max_cpu; ++i) {
+ if (!test_bit(i, cpu_bitmap))
+ continue;
+
t = idle_threads[i];
if (!t)
continue;
--
2.17.1
