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sched: tweak wakeup granularity

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tweak wakeup granularity.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2007-10-15 17:00:13 +02:00
parent 1e81995066
commit 155bb293ae
1 changed files with 4 additions and 4 deletions
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8
kernel/sched_fair.c
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@@ -58,23 +58,23 @@ unsigned int __read_mostly sysctl_sched_compat_yield;
/* /*
* SCHED_BATCH wake-up granularity. * SCHED_BATCH wake-up granularity.
* (default: 25 msec, units: nanoseconds) * (default: 10 msec, units: nanoseconds)
* *
* This option delays the preemption effects of decoupled workloads * This option delays the preemption effects of decoupled workloads
* and reduces their over-scheduling. Synchronous workloads will still * and reduces their over-scheduling. Synchronous workloads will still
* have immediate wakeup/sleep latencies. * have immediate wakeup/sleep latencies.
*/ */
const_debug unsigned int sysctl_sched_batch_wakeup_granularity = 25000000UL; const_debug unsigned int sysctl_sched_batch_wakeup_granularity = 10000000UL;
/* /*
* SCHED_OTHER wake-up granularity. * SCHED_OTHER wake-up granularity.
* (default: 1 msec, units: nanoseconds) * (default: 10 msec, units: nanoseconds)
* *
* This option delays the preemption effects of decoupled workloads * This option delays the preemption effects of decoupled workloads
* and reduces their over-scheduling. Synchronous workloads will still * and reduces their over-scheduling. Synchronous workloads will still
* have immediate wakeup/sleep latencies. * have immediate wakeup/sleep latencies.
*/ */
const_debug unsigned int sysctl_sched_wakeup_granularity = 2000000UL; const_debug unsigned int sysctl_sched_wakeup_granularity = 10000000UL;
/************************************************************** /**************************************************************
* CFS operations on generic schedulable entities: * CFS operations on generic schedulable entities: