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SubjectRe: Linux decent performance
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> Does O_SYNC do write-through caching or no caching at all?

write through. But you are the only user of the data anyway

> Other needed features are memory locking and async I/O... what's
> the status of that stuff?

memory locking is in 2.0. async I/O you can do but not via the standard
API. For a big database vendor thats as good as 'not present'. The API
needs doing at some point.


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