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| author | Mike Galbraith <efault@gmx.de> | 2006-03-22 00:07:33 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-22 07:53:54 -0800 |
| commit | 9430d58e34ec3861e1ca72f8e49105b227aad327 (patch) | |
| tree | ac8f8295131fbf3c0ddc689fa9887a8c95b0814d /kernel/sched.c | |
| parent | e952f31bce6e9f64db01f607abc46529ba57ac9e (diff) | |
| download | linux-stable-9430d58e34ec3861e1ca72f8e49105b227aad327.tar.gz linux-stable-9430d58e34ec3861e1ca72f8e49105b227aad327.tar.bz2 linux-stable-9430d58e34ec3861e1ca72f8e49105b227aad327.zip | |
[PATCH] sched: remove sleep_avg multiplier
Remove the sleep_avg multiplier. This multiplier was necessary back when
we had 10 seconds of dynamic range in sleep_avg, but now that we only have
one second, it causes that one second to be compressed down to 100ms in
some cases. This is particularly noticeable when compiling a kernel in a
slow NFS mount, and I believe it to be a very likely candidate for other
recently reported network related interactivity problems.
In testing, I can detect no negative impact of this removal.
Signed-off-by: Mike Galbraith <efault@gmx.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 4d46e90f59c3..6b6e0d70eb30 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -707,12 +707,6 @@ static int recalc_task_prio(task_t *p, unsigned long long now) DEF_TIMESLICE); } else { /* - * The lower the sleep avg a task has the more - * rapidly it will rise with sleep time. - */ - sleep_time *= (MAX_BONUS - CURRENT_BONUS(p)) ? : 1; - - /* * Tasks waking from uninterruptible sleep are * limited in their sleep_avg rise as they * are likely to be waiting on I/O |