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authorAnton Blanchard <anton@samba.org>2007-10-15 05:15:36 +1000
committerPaul Mackerras <paulus@samba.org>2007-10-17 22:30:08 +1000
commit309a109255cce65a99ced7a2bcabce24f4752db4 (patch)
tree7d2170a47eabfda0ebbff935ee2a289604a0ef21 /arch/powerpc/configs/ppc64_defconfig
parentf5534004e5296496aa559d65c91befd02bf91d05 (diff)
downloadop-kernel-dev-309a109255cce65a99ced7a2bcabce24f4752db4.zip
op-kernel-dev-309a109255cce65a99ced7a2bcabce24f4752db4.tar.gz
[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/ppc64_defconfig')
-rw-r--r--arch/powerpc/configs/ppc64_defconfig7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 5f6224a..76e3fab 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -96,8 +96,9 @@ CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
@@ -1750,7 +1751,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_SLAB is not set
+# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
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