sched: fine-tune SD_MC_INIT

Tune SD_MC_INIT the same way as SD_CPU_INIT:
unset SD_BALANCE_NEWIDLE, and set SD_WAKE_BALANCE.

This improves vmark by 5%:

vmark         132102 125968 125497 messages/sec    avg 127855.66    .984
vmark         139404 131719 131272 messages/sec    avg 134131.66   1.033

Signed-off-by: Mike Galbraith <efault@gmx.de>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 # *DOCUMENTATION*

diff --git a/include/linux/topology.h b/include/linux/topology.h
index 34a7ee0ebed2968e3a4833e18bcb92c720e51b32..a8d840595b7e75e222f0a3fac5ba505fcb8f16b4 100644 (file)
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -120,10 +120,10 @@ void arch_update_cpu_topology(void);
        .wake_idx               = 1,                    \
        .forkexec_idx           = 1,                    \
        .flags                  = SD_LOAD_BALANCE       \
-                               | SD_BALANCE_NEWIDLE    \
                                | SD_BALANCE_FORK       \
                                | SD_BALANCE_EXEC       \
                                | SD_WAKE_AFFINE        \
+                               | SD_WAKE_BALANCE       \
                                | SD_SHARE_PKG_RESOURCES\
                                | BALANCE_FOR_MC_POWER, \
        .last_balance           = jiffies,              \