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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-09-16 13:24:49 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-16 16:44:33 +0200 |
| commit | 182a85f8a119c789610a9d464f4129ded9f3c107 (patch) | |
| tree | ffc36e5049895bf85543ba8d0225805e15fe8d92 /arch/ia64 | |
| parent | sched: Rename flags to wake_flags (diff) | |
| download | linux-182a85f8a119c789610a9d464f4129ded9f3c107.tar.xz linux-182a85f8a119c789610a9d464f4129ded9f3c107.zip | |
sched: Disable wakeup balancing
Sysbench thinks SD_BALANCE_WAKE is too agressive and kbuild doesn't
really mind too much, SD_BALANCE_NEWIDLE picks up most of the
slack.
On a dual socket, quad core, dual thread nehalem system:
sysbench (--num_threads=16):
SD_BALANCE_WAKE-: 13982 tx/s
SD_BALANCE_WAKE+: 15688 tx/s
kbuild (-j16):
SD_BALANCE_WAKE-: 47.648295846 seconds time elapsed ( +- 0.312% )
SD_BALANCE_WAKE+: 47.608607360 seconds time elapsed ( +- 0.026% )
(same within noise)
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/include/asm/topology.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h index 569b9dafc78c..d0141fbf51d0 100644 --- a/arch/ia64/include/asm/topology.h +++ b/arch/ia64/include/asm/topology.h @@ -68,7 +68,6 @@ void build_cpu_to_node_map(void); | SD_BALANCE_NEWIDLE \ | SD_BALANCE_EXEC \ | SD_BALANCE_FORK \ - | SD_BALANCE_WAKE \ | SD_WAKE_AFFINE, \ .last_balance = jiffies, \ .balance_interval = 1, \ @@ -94,7 +93,6 @@ void build_cpu_to_node_map(void); | SD_BALANCE_NEWIDLE \ | SD_BALANCE_EXEC \ | SD_BALANCE_FORK \ - | SD_BALANCE_WAKE \ | SD_SERIALIZE, \ .last_balance = jiffies, \ .balance_interval = 64, \ |