diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-09-16 07:24:49 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-16 10:44:33 -0400 |
| commit | 182a85f8a119c789610a9d464f4129ded9f3c107 (patch) | |
| tree | ffc36e5049895bf85543ba8d0225805e15fe8d92 /arch/powerpc | |
| parent | 5a9b86f647a56862cdc0a1362bfb015ae921af7f (diff) | |
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/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/topology.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h index 1a2c9eb42a03..394edcbcce71 100644 --- a/arch/powerpc/include/asm/topology.h +++ b/arch/powerpc/include/asm/topology.h | |||
| @@ -63,7 +63,6 @@ static inline int pcibus_to_node(struct pci_bus *bus) | |||
| 63 | | SD_BALANCE_EXEC \ | 63 | | SD_BALANCE_EXEC \ |
| 64 | | SD_BALANCE_FORK \ | 64 | | SD_BALANCE_FORK \ |
| 65 | | SD_BALANCE_NEWIDLE \ | 65 | | SD_BALANCE_NEWIDLE \ |
| 66 | | SD_BALANCE_WAKE \ | ||
| 67 | | SD_SERIALIZE, \ | 66 | | SD_SERIALIZE, \ |
| 68 | .last_balance = jiffies, \ | 67 | .last_balance = jiffies, \ |
| 69 | .balance_interval = 1, \ | 68 | .balance_interval = 1, \ |