Re: Avoiding external fragmentation with a placement policy Version 12

Martin J. Bligh
2005-06-03T17:56:54Z

--On Friday, June 03, 2005 12:47:06 -0500 Sonny Rao <sonnyrao@us.ibm.com> wrote:

> On Wed, Jun 01, 2005 at 04:28:34PM -0700, Martin J. Bligh wrote:
> <snip>
>> Seems to me we're basically pointing a blunderbuss at memory, and
>> blowing away large portions, and *hoping* something falls out the
>> bottom that's a big enough chunk?
>
> Isn't this also the case with the slab shrinkers ??
>
> We kill stuff until some free pages hopefully fall out, but this can
> be difficult when you have 20+ non-related items per page (dcache).
>
> I think there should be a better way there as well.

Yup. Same problem, I've been looking at that too ...

M.