From da84d96176729fb48a8458561e5d8647103168b8 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 15 Oct 2007 17:00:18 +0200 Subject: sched: reintroduce cache-hot affinity reintroduce a simplified version of cache-hot/cold scheduling affinity. This improves performance with certain SMP workloads, such as sysbench. Signed-off-by: Ingo Molnar --- kernel/sched_fair.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'kernel/sched_fair.c') diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index cea1fa32b3f..a17b785d700 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -74,6 +74,8 @@ const_debug unsigned int sysctl_sched_batch_wakeup_granularity = 10000000UL; */ const_debug unsigned int sysctl_sched_wakeup_granularity = 10000000UL; +const_debug unsigned int sysctl_sched_migration_cost = 500000UL; + /************************************************************** * CFS operations on generic schedulable entities: */ -- cgit v1.2.3