Re: [RFC][PATCH] swsusp: support creating bigger images

Pavel Machek
2006-04-25T10:04:50Z

Hi!

> > Okay, so it can be done, and patch does not look too bad. It still
> > scares me. Is 800MB image more responsive than 500MB after resume?
>
> Yes, it is, slightly, but I think 800 meg images are impractical for
> performance reasons (like IMO everything above 500 meg with the current
> hardware). However this means we can save 80% of RAM with the patch
> and that should be 400 meg instead of 250 on a 500 meg machine, or
> 200 meg instead of 125 on a 250 meg machine.

Could we get few people trying it on such small machines to see if it
is really that noticeable?

> > Is benefit worth it?
>
> Well, that depends. I think for boxes with 1 GB of RAM or more it's just
> unnecessary (as of today, but this may change if faster disks are available).
> On boxes with 512 MB of RAM or less it may change a lot as far as the
> responsiveness after resume is concerned.
>
> Anyway do you think it may go into -mm (unless Andrew shoots it down,
> that is ;-))?

I'd really like to hear that it helps someone before going to
-mm. It looks clean enough but still it is 300 lines...

Pavel
--
Thanks for all the (sleeping) penguins.