CONFIG_X86_FAST_FEATURE_TESTS: Fast CPU feature tests

General informations

The Linux kernel configuration item CONFIG_X86_FAST_FEATURE_TESTS:

• prompt: Fast CPU feature tests
• type: bool
• depends on: CONFIG_EMBEDDED
• defined in arch/x86/Kconfig
• found in Linux kernels: 4.5–4.16

Help text

Some fast-paths in the kernel depend on the capabilities of the CPU. Say Y here for the kernel to patch in the appropriate code at runtime based on the capabilities of the CPU. The infrastructure for patching code at runtime takes up some additional space; space-constrained embedded systems may wish to say N here to produce smaller, slightly slower code.

Hardware

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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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