| From | Andrea Arcangeli <> | Subject | [PATCH 37/39] autonuma: add CONFIG_AUTONUMA and CONFIG_AUTONUMA_DEFAULT_ENABLED | Date | Mon, 26 Mar 2012 19:46:24 +0200 |
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Add the config options to allow building the kernel with AutoNUMA.
If CONFIG_AUTONUMA_DEFAULT_ENABLED is "=y", then /sys/kernel/mm/autonuma/enabled will be equal to 1, and AutoNUMA will be enabled automatically at boot.
CONFIG_AUTONUMA currently depends on X86, because no other arch implements the pte/pmd_numa yet and selecting =y would result in a failed build, but this shall be relaxed in the future. Porting AutoNUMA to other archs should be pretty simple.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> --- mm/Kconfig | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/mm/Kconfig b/mm/Kconfig index e338407..cbfdb15 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -207,6 +207,19 @@ config MIGRATION pages as migration can relocate pages to satisfy a huge page allocation instead of reclaiming. +config AUTONUMA + bool "Auto NUMA" + select MIGRATION + depends on NUMA && X86 + help + Automatic NUMA CPU scheduling and memory migration. + +config AUTONUMA_DEFAULT_ENABLED + bool "Auto NUMA default enabled" + depends on AUTONUMA + help + Automatic NUMA CPU scheduling and memory migration enabled at boot. + config PHYS_ADDR_T_64BIT def_bool 64BIT || ARCH_PHYS_ADDR_T_64BIT
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