From mboxrd@z Thu Jan 1 00:00:00 1970 From: daniel.diaz@linaro.org (=?UTF-8?q?Daniel=20D=C3=ADaz?=) Date: Thu, 14 Jun 2018 17:50:27 -0500 Subject: [PATCH 2/2] arm: multi_v7_defconfig: Enable KSM. In-Reply-To: <1529016629-2948-1-git-send-email-daniel.diaz@linaro.org> References: <1529016629-2948-1-git-send-email-daniel.diaz@linaro.org> Message-ID: <1529016629-2948-2-git-send-email-daniel.diaz@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org As per the documentation, Kernel Samepage Merging (available since 2.6.32) is a memory-saving de-duplication feature, enabled by CONFIG_KSM=y and activated via sysfs. More information can be found here: https://www.kernel.org/doc/Documentation/vm/ksm.txt When enabled in the kernel, the default is to not do anything at all, until it is activated at run-time with: echo 1 > /sys/kernel/mm/ksm/run Signed-off-by: Daniel D?az --- arch/arm/configs/multi_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index 7e1c543..79eedf4d 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -133,6 +133,7 @@ CONFIG_SMP=y CONFIG_NR_CPUS=16 CONFIG_HIGHPTE=y CONFIG_CMA=y +CONFIG_KSM=y CONFIG_SECCOMP=y CONFIG_ARM_APPENDED_DTB=y CONFIG_ARM_ATAG_DTB_COMPAT=y -- 2.7.4