CONFIG_MIGRATION: Page migration

General informations

The Linux kernel configuration item CONFIG_MIGRATION has multiple definitions:

Page migration found in mm/Kconfig

The configuration item CONFIG_MIGRATION:

• prompt: Page migration
• type: bool
• depends on: ( CONFIG_NUMA || CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE || CONFIG_COMPACTION || CONFIG_CMA ) && CONFIG_MMU
• defined in mm/Kconfig
• found in Linux kernels: 6.9–6.17, 6.18-rc+HEAD

Help text

Allows the migration of the physical location of pages of processes while the virtual addresses are not changed. This is useful in two situations. The first is on NUMA systems to put pages nearer to the processors accessing. The second is when allocating huge pages as migration can relocate pages to satisfy a huge page allocation instead of reclaiming.

found in mm/Kconfig

The configuration item CONFIG_MIGRATION:

• prompt:
• type: bool
• depends on: ( CONFIG_NUMA || CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE || CONFIG_COMPACTION || CONFIG_CMA ) && CONFIG_MMU
• defined in mm/Kconfig
• found in Linux kernels: 2.6.16–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8

Help text

Allows the migration of the physical location of pages of processes while the virtual addresses are not changed. This is useful in two situations. The first is on NUMA systems to put pages nearer to the processors accessing. The second is when allocating huge pages as migration can relocate pages to satisfy a huge page allocation instead of reclaiming.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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