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| author | Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:18 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:18 +0200 |
| commit | da84d96176729fb48a8458561e5d8647103168b8 (patch) | |
| tree | 24c952d956178faa9ac8b5c505513c93a87f4f6b /kernel/sched_fair.c | |
| parent | sched: speed up context-switches a bit (diff) | |
| download | linux-da84d96176729fb48a8458561e5d8647103168b8.tar.xz linux-da84d96176729fb48a8458561e5d8647103168b8.zip | |
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 <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_fair.c')
| -rw-r--r-- | kernel/sched_fair.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index cea1fa32b3f4..a17b785d7000 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: */ |