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authorAnton Blanchard <anton@samba.org>2015-01-20 10:24:22 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2015-01-21 15:10:24 +1100
commit36c7bfc4d0f046887d6d73eba430ac6551383849 (patch)
treec41c5d0cf38251d4b0f81acbe2385a84736921ab
parentafda939f0ae63723250734e1365e4ead97f8a2b1 (diff)
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 <anton@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
-rw-r--r--arch/powerpc/configs/ppc64_defconfig1
-rw-r--r--arch/powerpc/configs/pseries_defconfig1
-rw-r--r--arch/powerpc/configs/pseries_le_defconfig1
3 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 0fd22dfe00d1..897869ce22aa 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 ffd4bbd483f9..7677850e2b07 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 66db64ad95f2..acb611a26836 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