From 36c7bfc4d0f046887d6d73eba430ac6551383849 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Tue, 20 Jan 2015 10:24:22 +1100 Subject: [PATCH] powerpc: Enable KSM on pseries and ppc64 defconfigs 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 Signed-off-by: Michael Ellerman --- arch/powerpc/configs/ppc64_defconfig | 1 + arch/powerpc/configs/pseries_defconfig | 1 + arch/powerpc/configs/pseries_le_defconfig | 1 + 3 files changed, 3 insertions(+) diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig index 0fd22df..897869c 100644 --- a/arch/powerpc/configs/ppc64_defconfig +++ b/arch/powerpc/configs/ppc64_defconfig @@ -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 diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig index ffd4bbd..7677850 100644 --- a/arch/powerpc/configs/pseries_defconfig +++ b/arch/powerpc/configs/pseries_defconfig @@ -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 diff --git a/arch/powerpc/configs/pseries_le_defconfig b/arch/powerpc/configs/pseries_le_defconfig index 66db64a..acb611a 100644 --- a/arch/powerpc/configs/pseries_le_defconfig +++ b/arch/powerpc/configs/pseries_le_defconfig @@ -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 -- 2.7.4