CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI_PERCPU: Use percpu multiple decompressors for parallel I/O

General informations

The Linux kernel configuration item CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI_PERCPU:

• prompt: Use percpu multiple decompressors for parallel I/O
• type: bool
• depends on: (none)
• defined in fs/squashfs/Kconfig
• found in Linux kernels: 6.2–6.10, 6.11-rc+HEAD

Help text

By default Squashfs uses a single decompressor but it gives poor performance on parallel I/O workloads when using multiple CPU machines due to waiting on decompressor availability.

This decompressor implementation uses a maximum of one decompressor per core. It uses percpu variables to ensure decompression is load-balanced across the cores.

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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