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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-09-13 17:34:27 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-09-13 17:34:27 -0400 |
commit | bfa88ea7ee9e6b4fd673e45a8cc0a8e0b7ef4761 (patch) | |
tree | 79e0ed272e8261e6859cb066c3e3a34fe345f329 | |
parent | 1d91686a475381443a5e00ff3a6ab1ee61d6af28 (diff) | |
parent | 0bf377bbb0bea6130f35613491887cc622e42a8b (diff) |
Merge branch 'sched/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: Improve latencies under load by decreasing minimum scheduling granularity
-rw-r--r-- | kernel/sched_fair.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 9b5b4f86b742..a171138a9402 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c | |||
@@ -54,13 +54,13 @@ enum sched_tunable_scaling sysctl_sched_tunable_scaling | |||
54 | * Minimal preemption granularity for CPU-bound tasks: | 54 | * Minimal preemption granularity for CPU-bound tasks: |
55 | * (default: 2 msec * (1 + ilog(ncpus)), units: nanoseconds) | 55 | * (default: 2 msec * (1 + ilog(ncpus)), units: nanoseconds) |
56 | */ | 56 | */ |
57 | unsigned int sysctl_sched_min_granularity = 2000000ULL; | 57 | unsigned int sysctl_sched_min_granularity = 750000ULL; |
58 | unsigned int normalized_sysctl_sched_min_granularity = 2000000ULL; | 58 | unsigned int normalized_sysctl_sched_min_granularity = 750000ULL; |
59 | 59 | ||
60 | /* | 60 | /* |
61 | * is kept at sysctl_sched_latency / sysctl_sched_min_granularity | 61 | * is kept at sysctl_sched_latency / sysctl_sched_min_granularity |
62 | */ | 62 | */ |
63 | static unsigned int sched_nr_latency = 3; | 63 | static unsigned int sched_nr_latency = 8; |
64 | 64 | ||
65 | /* | 65 | /* |
66 | * After fork, child runs first. If set to 0 (default) then | 66 | * After fork, child runs first. If set to 0 (default) then |