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Commit 74e3cd7f authored by Ingo Molnar's avatar Ingo Molnar
Browse files

sched: retune wake granularity 



reduce wake-up granularity for better interactivity.

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent f540a608

kernel/sched_fair.c

+2 −2
Original line number Diff line number Diff line
@@ -73,13 +73,13 @@ unsigned int sysctl_sched_batch_wakeup_granularity = 10000000UL; 


/*

 * SCHED_OTHER wake-up granularity.

 * (default: 10 msec * (1 + ilog(ncpus)), units: nanoseconds)

 * (default: 5 msec * (1 + ilog(ncpus)), units: nanoseconds)

 *

 * This option delays the preemption effects of decoupled workloads

 * and reduces their over-scheduling. Synchronous workloads will still

 * have immediate wakeup/sleep latencies.

 */

unsigned int sysctl_sched_wakeup_granularity = 10000000UL;

unsigned int sysctl_sched_wakeup_granularity = 5000000UL;



const_debug unsigned int sysctl_sched_migration_cost = 500000UL;