diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-11-07 16:09:23 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-01 15:52:20 -0700 |
| commit | aa7659a10684907bec7c0c6887f8755767fb8dea (patch) | |
| tree | 236377bbfc6e50415e58d0d42880ee0625287df3 | |
| parent | ab0fcb9bdab0106011209d5c8b873bdf0fbd1955 (diff) | |
sched: fine-tune SD_SIBLING_INIT
commit 52c642f33b14bfa1b00ef2b68296effb34a573f3 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -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 91835a78232..2565f4a370b 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, \ |