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>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 589f12383d78..6f0695d744bf 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -141,7 +141,7 @@ extern unsigned long node_remap_size[];
                                 | 1*SD_BALANCE_NEWIDLE                  \
                                 | 1*SD_BALANCE_EXEC                     \
                                 | 1*SD_BALANCE_FORK                     \
-                                | 1*SD_BALANCE_WAKE                     \
+                                | 0*SD_BALANCE_WAKE                     \
                                 | 1*SD_WAKE_AFFINE                      \
                                 | 0*SD_SHARE_CPUPOWER                   \
                                 | 0*SD_POWERSAVINGS_BALANCE             \