CONFIG_PER_VMA_LOCK_STATS: Statistics for per-vma locks

General informations

The Linux kernel configuration item CONFIG_PER_VMA_LOCK_STATS:

• prompt: Statistics for per-vma locks
• type: bool
• depends on: CONFIG_PER_VMA_LOCK
• defined in mm/Kconfig.debug
• found in Linux kernels: 6.4–6.12

Help text

Say Y here to enable success, retry and failure counters of page faults handled under protection of per-vma locks. When enabled, the counters are exposed in /proc/vmstat. This information is useful for kernel developers to evaluate effectiveness of per-vma locks and to identify pathological cases. Counting these events introduces a small overhead in the page fault path.

If in doubt, say N.

Hardware

LKDDb

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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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