CONFIG_DM_CACHE_SMQ: Stochastic MQ Cache Policy (EXPERIMENTAL)

General informations

The Linux kernel configuration item CONFIG_DM_CACHE_SMQ:

• prompt: Stochastic MQ Cache Policy (EXPERIMENTAL)
• type: tristate
• depends on: CONFIG_DM_CACHE
• defined in drivers/md/Kconfig
• found in Linux kernels: 4.2–4.20, 5.0–5.19, 6.0–6.13
• modules built: dm-cache-smq

Help text

A cache policy that uses a multiqueue ordered by recent hits to select which blocks should be promoted and demoted. This is meant to be a general purpose policy. It prioritises reads over writes. This SMQ policy (vs MQ) offers the promise of less memory utilization, improved performance and increased adaptability in the face of changing workloads.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module dm-cache-smq CONFIG_DM_CACHE_SMQ : drivers/md/Kconfig : "Stochastic MQ Cache Policy (EXPERIMENTAL)" # in 4.2–4.20, 5.0–5.19, 6.0–6.13

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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