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CONFIG_NUMA: Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)

General informations

The Linux kernel configuration item CONFIG_NUMA has multiple definitions:

found in arch/c6x/Kconfig

The configuration item CONFIG_NUMA:

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found in arch/mn10300/Kconfig

The configuration item CONFIG_NUMA:

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found in arch/tile/Kconfig

The configuration item CONFIG_NUMA:

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NUMA memory allocation is required for TILE processors unless booting with memory striping enabled in the hypervisor, or with only a single memory controller. It is recommended that this option always be enabled.

found in arch/x86_64/Kconfig

The configuration item CONFIG_NUMA:

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Enable NUMA support found in arch/ia64/Kconfig

The configuration item CONFIG_NUMA:

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Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option is for configuring high-end multiprocessor server systems. If in doubt, say N.

NUMA Support (EXPERIMENTAL) found in arch/alpha/Kconfig

The configuration item CONFIG_NUMA:

Help text

Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option is for configuring high-end multiprocessor server machines. If in doubt, say N.

NUMA Support found in arch/mips/Kconfig

The configuration item CONFIG_NUMA:

Help text

Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option improves performance on systems with more than two nodes; on two node systems it is generally better to leave it disabled; on single node systems disable this option disabled.

NUMA Support found in arch/mips/sgi-ip27/Kconfig

The configuration item CONFIG_NUMA:

Help text

Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option is for configuring high-end multiprocessor server machines. If in doubt, say N.

NUMA support found in arch/ia64/Kconfig

The configuration item CONFIG_NUMA:

Help text

Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option is for configuring high-end multiprocessor server systems. If in doubt, say N.

NUMA support found in arch/powerpc/Kconfig

The configuration item CONFIG_NUMA:

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NUMA support found in arch/ppc64/Kconfig

The configuration item CONFIG_NUMA:

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NUMA support found in arch/sparc/Kconfig

The configuration item CONFIG_NUMA:

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NUMA support found in arch/sparc64/Kconfig

The configuration item CONFIG_NUMA:

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Non Uniform Memory Access (NUMA) Support found in arch/metag/mm/Kconfig

The configuration item CONFIG_NUMA:

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Some Meta systems have MMU-mappable on-chip memories with lower latencies than main memory. This enables support for these blocks by binding them to nodes and allowing memory policies to be used for prioritizing and controlling allocation behaviour.

Non Uniform Memory Access (NUMA) Support found in arch/sh/mm/Kconfig

The configuration item CONFIG_NUMA:

Help text

Some SH systems have many various memories scattered around the address space, each with varying latencies. This enables support for these blocks by binding them to nodes and allowing memory policies to be used for prioritizing and controlling allocation behaviour.

Non Uniform Memory Access (NUMA) Support found in arch/x86_64/Kconfig

The configuration item CONFIG_NUMA:

Help text

Enable NUMA (Non Uniform Memory Access) support. The kernel will try to allocate memory used by a CPU on the local memory controller of the CPU and add some more NUMA awareness to the kernel. This code is recommended on all multiprocessor Opteron systems. If the system is EM64T, you should say N unless your system is EM64T NUMA.

Numa Memory Allocation Support found in arch/i386/Kconfig

The configuration item CONFIG_NUMA:

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Numa Memory Allocation Support found in arch/m32r/Kconfig

The configuration item CONFIG_NUMA:

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Numa Memory Allocation and Scheduler Support (EXPERIMENTAL) found in arch/i386/Kconfig

The configuration item CONFIG_NUMA:

Help text

NUMA support for i386. This is currently high experimental and should be only used for kernel development. It might also cause boot failures.

Numa Memory Allocation and Scheduler Support (EXPERIMENTAL) found in arch/x86/Kconfig

The configuration item CONFIG_NUMA:

Help text

Enable NUMA (Non Uniform Memory Access) support. The kernel will try to allocate memory used by a CPU on the local memory controller of the CPU and add some more NUMA awareness to the kernel.

For 32-bit this is currently highly experimental and should be only used for kernel development. It might also cause boot failures. For 64-bit this is recommended on all multiprocessor Opteron systems. If the system is EM64T, you should say N unless your system is EM64T NUMA.

Numa Memory Allocation and Scheduler Support found in arch/i386/Kconfig

The configuration item CONFIG_NUMA:

Help text

(none)

Numa Memory Allocation and Scheduler Support found in arch/x86/Kconfig

The configuration item CONFIG_NUMA:

Help text

Enable NUMA (Non Uniform Memory Access) support.

The kernel will try to allocate memory used by a CPU on the local memory controller of the CPU and add some more NUMA awareness to the kernel.

For 64-bit this is recommended if the system is Intel Core i7 (or later), AMD Opteron, or EM64T NUMA.

For 32-bit this is only needed if you boot a 32-bit kernel on a 64-bit NUMA platform.

Otherwise, you should say N.

Hardware

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