Commit-ID: 864616ee6785d9fac7a2cd80c01a2da89579f2e4 Gitweb: http://git.kernel.org/tip/864616ee6785d9fac7a2cd80c01a2da89579f2e4 Author: Takuya Yoshikawa <yoshikawa.takuya@xxxxxxxxxxxxx> AuthorDate: Thu, 14 Oct 2010 16:09:13 +0900 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Thu, 14 Oct 2010 09:13:35 +0200 sched: Comment updates: fix default latency and granularity numbers Targeted preemption latency and minimal preemption granularity for CPU-bound tasks have been changed. This patch updates the comments about these values. Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@xxxxxxxxxxxxx> Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Cc: Mike Galbraith <efault@xxxxxx> LKML-Reference: <20101014160913.eb24fef4.yoshikawa.takuya@xxxxxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- kernel/sched_fair.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 623e9ac..bf87192 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -25,7 +25,7 @@ /* * Targeted preemption latency for CPU-bound tasks: - * (default: 5ms * (1 + ilog(ncpus)), units: nanoseconds) + * (default: 6ms * (1 + ilog(ncpus)), units: nanoseconds) * * NOTE: this latency value is not the same as the concept of * 'timeslice length' - timeslices in CFS are of variable length @@ -52,7 +52,7 @@ enum sched_tunable_scaling sysctl_sched_tunable_scaling /* * Minimal preemption granularity for CPU-bound tasks: - * (default: 2 msec * (1 + ilog(ncpus)), units: nanoseconds) + * (default: 0.75 msec * (1 + ilog(ncpus)), units: nanoseconds) */ unsigned int sysctl_sched_min_granularity = 750000ULL; unsigned int normalized_sysctl_sched_min_granularity = 750000ULL; -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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