Re: 2.6.9-rc2-mm1 swsusp bug report.

From: Pavel Machek
Date: Sat Sep 25 2004 - 10:47:01 EST


Hi!

> >>What causes memory to be so fragmented?
> >
> >
> >Normal usage; the pattern of pages being freed and allocated inevitably
> >leads to fragmentation. The buddy allocator does a good job of
> >minimising it, but what is really needed is a run-time defragmenter. I
> >saw mention of this recently, but it's probably not that practical to
> >implement IMHO.
>
> Well, by this stage it looks like memory is already pretty well shrunk
> as much as it is going to be, which means that even a pretty capable
> defragmenter won't be able to do anything.

True, defragmenter would not help.

Anyway, conversion from order-8 allocation should be pretty easy, but
I never seen that failure case and this is first report... So I'm not
doing that work just yet. [There's big chunk of changes waiting in
-mm, that needs to be merged because any other work should be done.]

Pavel
--
People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!
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