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CONFIG_DM_CACHE_SMQ: Stochastic MQ Cache Policy (EXPERIMENTAL)

General informations

The Linux kernel configuration item CONFIG_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

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