Re: ~500 megs cached yet 2.6.5 goes into swap hell

[Chris Friesen]

Martin J. Bligh wrote:

> The latency for interactive stuff is definitely more noticeable though, and
> thus arguably more important. Perhaps we should be tying the scheduler in
> more tightly with the VM - we've already decided there which apps are 
> "interactive" and thus need low latency ... shouldn't we be giving a boost
> to their RAM pages as well, and favour keeping those paged in over other
> pages (whether other apps, or cache) logically? It's all latency still ...

I like this idea.  Maybe make it more general though--tasks with high scheduler priority also get 
more of a memory priority boost.  This will factor in the static priority as well as the 
interactivity bonus.

Chris
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