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Peter Zijlstra 182a85f8a1 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>
2009-09-16 16:44:33 +02:00
..
alpha KEYS: Add missing linux/tracehook.h #inclusions 2009-09-09 18:30:02 +10:00
arm Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 2009-09-11 09:19:35 -07:00
avr32 Merge branch 'next' into for-linus 2009-09-11 08:04:49 +10:00
blackfin
cris KEYS: Add missing linux/tracehook.h #inclusions 2009-09-09 18:30:02 +10:00
frv KEYS: Add a keyctl to install a process's session keyring on its parent [try #6] 2009-09-02 21:29:22 +10:00
h8300 KEYS: Add missing linux/tracehook.h #inclusions 2009-09-09 18:30:02 +10:00
ia64 sched: Disable wakeup balancing 2009-09-16 16:44:33 +02:00
m32r KEYS: Add missing linux/tracehook.h #inclusions 2009-09-09 18:30:02 +10:00
m68k locking, m68k/asm-offsets: Rename signal defines 2009-09-01 09:38:03 +02:00
m68knommu m68k,m68knommu: Wire up rt_tgsigqueueinfo and perf_counter_open 2009-08-26 23:14:50 +02:00
microblaze
mips sched: Disable wakeup balancing 2009-09-16 16:44:33 +02:00
mn10300 KEYS: Add a keyctl to install a process's session keyring on its parent [try #6] 2009-09-02 21:29:22 +10:00
parisc Merge branch 'next' into for-linus 2009-09-11 08:04:49 +10:00
powerpc sched: Disable wakeup balancing 2009-09-16 16:44:33 +02:00
s390 Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-11 13:24:03 -07:00
sh sched: Disable wakeup balancing 2009-09-16 16:44:33 +02:00
sparc sched: Disable wakeup balancing 2009-09-16 16:44:33 +02:00
um
x86 sched: Disable wakeup balancing 2009-09-16 16:44:33 +02:00
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