projects / thirdparty / kernel / stable-queue.git / blame
| Commit | Line | Data |
|---|---|---|
| 8043cbef GKH |
1 | From 14800984706bf6936bbec5187f736e928be5c218 Mon Sep 17 00:00:00 2001 |
| 2 | From: Mike Galbraith <efault@gmx.de> | |
| 3 | Date: Fri, 7 Nov 2008 15:26:50 +0100 | |
| 4 | Subject: sched: fine-tune SD_MC_INIT | |
| 5 | ||
| 6 | From: Mike Galbraith <efault@gmx.de> | |
| 7 | ||
| 8 | commit 14800984706bf6936bbec5187f736e928be5c218 upstream. | |
| 9 | ||
| 10 | Tune SD_MC_INIT the same way as SD_CPU_INIT: | |
| 11 | unset SD_BALANCE_NEWIDLE, and set SD_WAKE_BALANCE. | |
| 12 | ||
| 13 | This improves vmark by 5%: | |
| 14 | ||
| 15 | vmark 132102 125968 125497 messages/sec avg 127855.66 .984 | |
| 16 | vmark 139404 131719 131272 messages/sec avg 134131.66 1.033 | |
| 17 | ||
| 18 | Signed-off-by: Mike Galbraith <efault@gmx.de> | |
| 19 | Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> | |
| 20 | Signed-off-by: Ingo Molnar <mingo@elte.hu> | |
| 21 | Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> | |
| 22 | ||
| 23 | --- | |
| 24 | include/linux/topology.h | 2 +- | |
| 25 | 1 file changed, 1 insertion(+), 1 deletion(-) | |
| 26 | ||
| 27 | --- a/include/linux/topology.h | |
| 28 | +++ b/include/linux/topology.h | |
| 29 | @@ -120,10 +120,10 @@ void arch_update_cpu_topology(void); | |
| 30 | .wake_idx = 1, \ | |
| 31 | .forkexec_idx = 1, \ | |
| 32 | .flags = SD_LOAD_BALANCE \ | |
| 33 | - | SD_BALANCE_NEWIDLE \ | |
| 34 | | SD_BALANCE_FORK \ | |
| 35 | | SD_BALANCE_EXEC \ | |
| 36 | | SD_WAKE_AFFINE \ | |
| 37 | + | SD_WAKE_BALANCE \ | |
| 38 | | SD_SHARE_PKG_RESOURCES\ | |
| 39 | | BALANCE_FOR_MC_POWER, \ | |
| 40 | .last_balance = jiffies, \ |