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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/g5_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/g5_defconfig')
-rw-r--r--arch/powerpc/configs/g5_defconfig7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/powerpc/configs/g5_defconfig b/arch/powerpc/configs/g5_defconfig
index a655d87b3f8b..0a6fa1fc9766 100644
--- a/arch/powerpc/configs/g5_defconfig
+++ b/arch/powerpc/configs/g5_defconfig
@@ -92,8 +92,9 @@ CONFIG_TIMERFD=y
92CONFIG_EVENTFD=y 92CONFIG_EVENTFD=y
93CONFIG_SHMEM=y 93CONFIG_SHMEM=y
94CONFIG_VM_EVENT_COUNTERS=y 94CONFIG_VM_EVENT_COUNTERS=y
95CONFIG_SLAB=y 95CONFIG_SLUB_DEBUG=y
96# CONFIG_SLUB is not set 96# CONFIG_SLAB is not set
97CONFIG_SLUB=y
97# CONFIG_SLOB is not set 98# CONFIG_SLOB is not set
98CONFIG_RT_MUTEXES=y 99CONFIG_RT_MUTEXES=y
99# CONFIG_TINY_SHMEM is not set 100# CONFIG_TINY_SHMEM is not set
@@ -1580,7 +1581,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
1580CONFIG_SCHED_DEBUG=y 1581CONFIG_SCHED_DEBUG=y
1581# CONFIG_SCHEDSTATS is not set 1582# CONFIG_SCHEDSTATS is not set
1582# CONFIG_TIMER_STATS is not set 1583# CONFIG_TIMER_STATS is not set
1583# CONFIG_DEBUG_SLAB is not set 1584# CONFIG_SLUB_DEBUG_ON is not set
1584# CONFIG_DEBUG_RT_MUTEXES is not set 1585# CONFIG_DEBUG_RT_MUTEXES is not set
1585# CONFIG_RT_MUTEX_TESTER is not set 1586# CONFIG_RT_MUTEX_TESTER is not set
1586# CONFIG_DEBUG_SPINLOCK is not set 1587# CONFIG_DEBUG_SPINLOCK is not set