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SubjectRe: Disk performance degradation
Mike Dresser <> writes:

> Probably for reasons like that. For some reason, I can't set my ICH4
> based controller(ASUS P4B533) and Quantum Fireball AS40.0 to more than
> 255. Kernel is 2.4.21

It appears that in 2.[56] kernels the unit for readahead is bytes,
rather than sectors, as used in 2.4 kernels.

Måns Rullgård

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