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powerpc: Enable KSM on pseries and ppc64 defconfigs

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KSM will only be used on areas marked for merging via madvise, and it
is showing nice improvements on KVM workloads, so enable it by
default.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Anton Blanchard 2015-01-20 10:24:22 +11:00 committed by Michael Ellerman
parent afda939f0a
commit 36c7bfc4d0
3 changed files with 3 additions and 0 deletions
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1
arch/powerpc/configs/ppc64_defconfig
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@ -49,6 +49,7 @@ CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_IRQ_ALL_CPUS=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_KSM=y
CONFIG_SCHED_SMT=y
CONFIG_PCCARD=y
CONFIG_ELECTRA_CF=y

1
arch/powerpc/configs/pseries_defconfig
View file

@ -46,6 +46,7 @@ CONFIG_KEXEC=y
CONFIG_IRQ_ALL_CPUS=y
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_KSM=y
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_PPC_64K_PAGES=y
CONFIG_PPC_SUBPAGE_PROT=y

1
arch/powerpc/configs/pseries_le_defconfig
View file

@ -47,6 +47,7 @@ CONFIG_KEXEC=y
CONFIG_IRQ_ALL_CPUS=y
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_KSM=y
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_PPC_64K_PAGES=y
CONFIG_PPC_SUBPAGE_PROT=y