From: "Daniel Díaz" <daniel.diaz@linaro.org>
To: x86@kernel.org
Cc: anders.roxell@linaro.org, "Daniel Díaz" <daniel.diaz@linaro.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Josh Poimboeuf" <jpoimboe@redhat.com>,
"Krzysztof Kozlowski" <krzk@kernel.org>,
linux-kernel@vger.kernel.org (open list:X86 ARCHITECTURE (32-BIT
AND 64-BIT))
Subject: [PATCH 1/2] x86: x86_64_defconfig: Enable KSM.
Date: Thu, 14 Jun 2018 17:50:26 -0500 [thread overview]
Message-ID: <1529016629-2948-1-git-send-email-daniel.diaz@linaro.org> (raw)
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 Díaz <daniel.diaz@linaro.org>
---
arch/x86/configs/x86_64_defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index e32fc1f..8fd7396 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -48,6 +48,7 @@ CONFIG_MICROCODE_AMD=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_NUMA=y
+CONFIG_KSM=y
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_EFI=y
--
2.7.4
next reply other threads:[~2018-06-14 22:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-14 22:50 Daniel Díaz [this message]
2018-06-14 22:50 ` [PATCH 2/2] arm: multi_v7_defconfig: " Daniel Díaz
2018-06-15 6:09 ` Geert Uytterhoeven
2018-06-15 8:27 ` [PATCH 1/2] x86: x86_64_defconfig: " Thomas Gleixner
2018-06-15 12:23 ` Austin S. Hemmelgarn
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