CONFIG_PCP_BATCH_SCALE_MAX: Maximum scale factor of PCP (Per-CPU pageset) batch allocate/free

General informations

The Linux kernel configuration item CONFIG_PCP_BATCH_SCALE_MAX:

• prompt: Maximum scale factor of PCP (Per-CPU pageset) batch allocate/free
• type: int
• depends on: (none)
• defined in mm/Kconfig
• found in Linux kernels: 6.7–6.8, 6.9-rc+HEAD

Help text

In page allocator, PCP (Per-CPU pageset) is refilled and drained in batches. The batch number is scaled automatically to improve page allocation/free throughput. But too large scale factor may hurt latency. This option sets the upper limit of scale factor to limit the maximum latency.

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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