Re: Strange interrupt behaviour

Alan Cox (alan@lxorguk.ukuu.org.uk)
Sun, 12 Jul 1998 16:51:24 +0100 (BST)

> We'll need something a little more radical, or just halfway
> radical by counting the contiguous buddies (of eg. 3 pages)
> and allocating from smaller areas only, giving the larger
> areas chance to grow.
>
> But this is so close to a zone allocator that we might as well
> do a lot of finetuning right now and start 2.3 real fast...

2.1.10x isnt usable on a server with 16Mb. It eventually fragments
itself to death normally death by dcache fragmentation of main
memory. I suspect a 32Mb box will simply last longer rather than
survive indefinitely.

I'm rebooting 32Mb SMP machines running 2.1.106/2.1.108 every 48
hours to get my compile performance back from 2/3rds of boot
time.

I don't think VM fixing by the ostrich technique is remotely realistic
for 2.2 even if Linus does.

Alan

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