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| author | Charles Wang <muming.wq@taobao.com> | 2012-08-20 16:02:33 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-02 10:30:05 -0700 |
| commit | 48f0f14ffb6ff4852922994d11fbda418d40100e (patch) | |
| tree | c1889eaa22a13909c8790013e22852e8e4f7610f /kernel | |
| parent | a95bb54b6345874159a82b93c67c49244d2433f2 (diff) | |
| download | linux-3.10-48f0f14ffb6ff4852922994d11fbda418d40100e.tar.gz linux-3.10-48f0f14ffb6ff4852922994d11fbda418d40100e.tar.bz2 linux-3.10-48f0f14ffb6ff4852922994d11fbda418d40100e.zip | |
sched: Add missing call to calc_load_exit_idle()
commit 749c8814f08f12baa4a9c2812a7c6ede7d69507d upstream.
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>
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
| -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 fd4e160aa9c..e6034779735 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -145,6 +145,7 @@ static void tick_nohz_update_jiffies(ktime_t now) tick_do_update_jiffies64(now); local_irq_restore(flags); + calc_load_exit_idle(); touch_softlockup_watchdog(); } |