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| author | Ingo Molnar <mingo@elte.hu> | 2008-11-07 18:09:23 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-07 18:09:23 +0300 |
| commit | 52c642f33b14bfa1b00ef2b68296effb34a573f3 (patch) | |
| tree | 508a49591138e91733ad228ae6a367d91b318b39 /include | |
| parent | 14800984706bf6936bbec5187f736e928be5c218 (diff) | |
| download | linux-52c642f33b14bfa1b00ef2b68296effb34a573f3.tar.xz | |
sched: fine-tune SD_SIBLING_INIT
fine-tune the HT sched-domains parameters as well.
On a HT capable box, this increases lat_ctx performance from 23.87
usecs to 1.49 usecs:
# before
$ ./lat_ctx -s 0 2
"size=0k ovr=1.89
2 23.87
# after
$ ./lat_ctx -s 0 2
"size=0k ovr=1.84
2 1.49
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/topology.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/topology.h b/include/linux/topology.h index a8d840595b7e..117f1b7405cf 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -99,7 +99,7 @@ void arch_update_cpu_topology(void); | SD_BALANCE_FORK \ | SD_BALANCE_EXEC \ | SD_WAKE_AFFINE \ - | SD_WAKE_IDLE \ + | SD_WAKE_BALANCE \ | SD_SHARE_CPUPOWER, \ .last_balance = jiffies, \ .balance_interval = 1, \ |