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		m463 on May 3, 2023 \| parent \| context \| favorite \| on: Investigating Linux phantom disk reads So a dbms probable has intimate knowledge about its data that probably can't be hinted via madvise. But I wonder when there are decent reasons to let the OS handle file I/O through the demand paging system, since it's good at it.

loeg on May 3, 2023 [–]

> since it's good at it.

This is generous. At least, it's not a great working assumption. If you know anything about your workload, it's often possible to do better by specializing slightly.

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