Messages in this thread | | | Date | Wed, 22 May 2002 08:59:57 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: suspend-to-{RAM,disk} for 2.5.17 |
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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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