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SubjectRe: suspend-to-{RAM,disk} for 2.5.17


On 22 May 2002, Xavier Bestel wrote:
>
> Compressing pages will speed up the process, and doing it on the fly
> will be more IO-bound than CPU-bound. I think trading some CPU power to
> gain HD time isn't so uninteresting.

It's been a long time since disks were so slow that compression speeded
things up.

_uncompression_ is often faster than disk speeds, but that's a
fundamentally easier problem to solve. That means that a mostly read-only
medium tends to work better with compressed contents, but in this case we
have a write-once, read-once thing where compression is likely to lose.

Yes, laptops have slow disks, but they often have slow memory and seldom
have the fastest CPU's available.

Linus

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