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| author | Charles Wang <muming.wq@taobao.com> | 2012-08-20 16:02:33 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-09-04 14:30:29 +0200 |
| commit | 749c8814f08f12baa4a9c2812a7c6ede7d69507d (patch) | |
| tree | c557a90a5f5d94b6de660b293bc7c24cf7e0d0a4 /kernel/time/tick-sched.c | |
| parent | f319da0c6894fcf55e21320e40506418a2aad629 (diff) | |
| download | blackbird-obmc-linux-749c8814f08f12baa4a9c2812a7c6ede7d69507d.tar.gz blackbird-obmc-linux-749c8814f08f12baa4a9c2812a7c6ede7d69507d.zip | |
sched: Add missing call to calc_load_exit_idle()
Azat Khuzhin reported high loadavg in Linux v3.6
After checking the upstream scheduler code, I found Peter's commit:
5167e8d5417b sched/nohz: Rewrite and fix load-avg computation -- again
not fully applied, missing the call to calc_load_exit_idle().
After that idle exit in sampling window will always be calculated
to non-idle, and the load will be higher than normal.
This patch adds the missing call to calc_load_exit_idle().
Signed-off-by: Charles Wang <muming.wq@taobao.com>
Cc: stable@kernel.org
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1345449754-27130-1-git-send-email-muming.wq@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/time/tick-sched.c')
| -rw-r--r-- | kernel/time/tick-sched.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 024540f97f74..3a9e5d5c1091 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -573,6 +573,7 @@ static void tick_nohz_restart_sched_tick(struct tick_sched *ts, ktime_t now) tick_do_update_jiffies64(now); update_cpu_load_nohz(); + calc_load_exit_idle(); touch_softlockup_watchdog(); /* * Cancel the scheduled timer and restore the tick |
