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SubjectRe: Linux responsiveness under heavy load
> If I remember properly, MySQL does not use mmaped files yet; if it would,
> would that make a difference? Currently it may just be busy copying
> buffers (I don't know how much of it is a userland issue vs. kernel
> space).

When your I/O subsystem can do 100Mbytes/second sustained then maybe, but
with the PC of today - wildly improbable.

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