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Enable metadata preload via zpool prefetch #16506

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shodanshok opened this issue Sep 4, 2024 · 0 comments
Open

Enable metadata preload via zpool prefetch #16506

shodanshok opened this issue Sep 4, 2024 · 0 comments
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Type: Feature Feature request or new feature

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@shodanshok
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Describe the feature would like to see added to OpenZFS

It would be useful to preload all pool metadata via zpool prefetch -t all (which is currently used for DDT metadata only).

How will this feature improve OpenZFS?

It will improve performance as preloading all metadata into ARC or L2ARC means having more IOPs for data transfer.

Additional context

See also #15890
@shodanshok shodanshok added the Type: Feature Feature request or new feature label Sep 4, 2024
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