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authorAnton Blanchard <anton@samba.org>2007-10-14 15:15:36 -0400
committerPaul Mackerras <paulus@samba.org>2007-10-17 08:30:08 -0400
commit309a109255cce65a99ced7a2bcabce24f4752db4 (patch)
tree7d2170a47eabfda0ebbff935ee2a289604a0ef21 /arch/powerpc/configs/ebony_defconfig
parentf5534004e5296496aa559d65c91befd02bf91d05 (diff)
[POWERPC] Enable SLUB in *_defconfig
When checking out the new NO_HZ support in powerpc, I noticed we never slept for more than 2 seconds. It turns out SLAB has a 2 second per cpu timer that causes this. After switching to SLUB I see some nice 4 second sleeps which is the limit on this POWER6 box (the decrementer ticks at 512MHz): slept 4.19 sec slept 4.19 sec slept 4.19 sec slept 4.19 sec slept 3.96 sec slept 3.80 sec slept 2.99 sec Since SLUB is now the default and some powerpc defconfigs already enable it, lets enable SLUB across the board for consistency. While doing this I also noticed that the maple defconfig has SLAB debugging enabled which is sure to make your box nice and slow. Fix that too. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/configs/ebony_defconfig')
-rw-r--r--arch/powerpc/configs/ebony_defconfig7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/powerpc/configs/ebony_defconfig b/arch/powerpc/configs/ebony_defconfig
index 3a50467b1f75..35a95dda681e 100644
--- a/arch/powerpc/configs/ebony_defconfig
+++ b/arch/powerpc/configs/ebony_defconfig
@@ -90,8 +90,9 @@ CONFIG_TIMERFD=y
90CONFIG_EVENTFD=y 90CONFIG_EVENTFD=y
91CONFIG_SHMEM=y 91CONFIG_SHMEM=y
92CONFIG_VM_EVENT_COUNTERS=y 92CONFIG_VM_EVENT_COUNTERS=y
93CONFIG_SLAB=y 93CONFIG_SLUB_DEBUG=y
94# CONFIG_SLUB is not set 94# CONFIG_SLAB is not set
95CONFIG_SLUB=y
95# CONFIG_SLOB is not set 96# CONFIG_SLOB is not set
96CONFIG_RT_MUTEXES=y 97CONFIG_RT_MUTEXES=y
97# CONFIG_TINY_SHMEM is not set 98# CONFIG_TINY_SHMEM is not set
@@ -773,7 +774,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
773CONFIG_SCHED_DEBUG=y 774CONFIG_SCHED_DEBUG=y
774# CONFIG_SCHEDSTATS is not set 775# CONFIG_SCHEDSTATS is not set
775# CONFIG_TIMER_STATS is not set 776# CONFIG_TIMER_STATS is not set
776# CONFIG_DEBUG_SLAB is not set 777# CONFIG_SLUB_DEBUG_ON is not set
777# CONFIG_DEBUG_RT_MUTEXES is not set 778# CONFIG_DEBUG_RT_MUTEXES is not set
778# CONFIG_RT_MUTEX_TESTER is not set 779# CONFIG_RT_MUTEX_TESTER is not set
779# CONFIG_DEBUG_SPINLOCK is not set 780# CONFIG_DEBUG_SPINLOCK is not set