CONFIG_CPU_ISOLATION: CPU isolation

General informations

The Linux kernel configuration item CONFIG_CPU_ISOLATION:

• prompt: CPU isolation
• type: bool
• depends on: CONFIG_SMP
• defined in init/Kconfig
• found in Linux kernels: 4.15–4.20, 5.0–5.19, 6.0–6.14, 6.15-rc+HEAD

Help text

Make sure that CPUs running critical tasks are not disturbed by any source of "noise" such as unbound workqueues, timers, kthreads... Unbound jobs get offloaded to housekeeping CPUs. This is driven by the "isolcpus=" boot parameter.

Say Y if unsure.

Hardware

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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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