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Date: Mon, 7 Jan 2002 11:21:04 -0500 (EST)
From: Mark Hahn <hahn@physics.mcmaster.ca>
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To: "M. Edward (Ed) Borasky" <znmeb@aracnet.com>
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Subject: Re: swapping,any updates ?? Just wasted money on mem upgrade
 performance still suck :-(
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> On Mon, 7 Jan 2002, Alan Cox wrote:
> 
> > > knobs. It just won't happen. Fixing VM behavior is the only way. It has to
> > > work satisfactorily _without_ tuning.
> >
> > Thats something you will never achieve. Virtual memory is about heuristics,
> > crystal ball gazing and guesswork. There are always some workloads where you
> > want little caching and some where you want lots of caching - such as a
> > fileserver.

non sequitur: Linus would like an adaptive VM, which recognizes
apps with the properties you describe.  there's no theoretical
or practical reason this cannot be achieved.

> Thank you, Alan!! Now if the *other* kernel developers would just buy
> into this. :)

you have the source.  whinging about knobs is just whinging.
all serious knobs require recompilation anyway.

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