Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9c4801cebc2add1fe514bc8eb201b16372eee11a
Commit: 9c4801cebc2add1fe514bc8eb201b16372eee11a
Parent: 0fec171cdbd7763ef86cbaccb91f3708de6a9003
Author: Ingo Molnar <[EMAIL PROTECTED]>
AuthorDate: Mon Jul 9 18:52:01 2007 +0200
Committer: Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Mon Jul 9 18:52:01 2007 +0200
sched: more agressive idle balancing
the Linux scheduler is starving a number of workloads. So default
to more agressive idle-balancing. This hurts lmbench context-switching
numbers (which was the main reason we sucked at idle-balancing for
such a long time) but the lmbench numbers are fine once the system is
minimally utilized.
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
---
include/linux/topology.h | 12 +++++++-----
1 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/include/linux/topology.h b/include/linux/topology.h
index a9d1f04..da6c39b 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -98,7 +98,7 @@
.cache_nice_tries = 0, \
.busy_idx = 0, \
.idle_idx = 0, \
- .newidle_idx = 1, \
+ .newidle_idx = 0, \
.wake_idx = 0, \
.forkexec_idx = 0, \
.flags = SD_LOAD_BALANCE \
@@ -128,14 +128,15 @@
.imbalance_pct = 125, \
.cache_nice_tries = 1, \
.busy_idx = 2, \
- .idle_idx = 1, \
- .newidle_idx = 2, \
+ .idle_idx = 0, \
+ .newidle_idx = 0, \
.wake_idx = 1, \
.forkexec_idx = 1, \
.flags = SD_LOAD_BALANCE \
| SD_BALANCE_NEWIDLE \
| SD_BALANCE_EXEC \
| SD_WAKE_AFFINE \
+ | SD_WAKE_IDLE \
| SD_SHARE_PKG_RESOURCES\
| BALANCE_FOR_MC_POWER, \
.last_balance = jiffies, \
@@ -158,14 +159,15 @@
.imbalance_pct = 125, \
.cache_nice_tries = 1, \
.busy_idx = 2, \
- .idle_idx = 1, \
- .newidle_idx = 2, \
+ .idle_idx = 0, \
+ .newidle_idx = 0, \
.wake_idx = 1, \
.forkexec_idx = 1, \
.flags = SD_LOAD_BALANCE \
| SD_BALANCE_NEWIDLE \
| SD_BALANCE_EXEC \
| SD_WAKE_AFFINE \
+ | SD_WAKE_IDLE \
| BALANCE_FOR_PKG_POWER,\
.last_balance = jiffies, \
.balance_interval = 1, \
-
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