Hi,

On 13 Jul 1998 20:29:33 +0200, Zlatko Calusic [off-list ref]
said:

I agree that ageing of the page cache has a bad impact on the
performance.

Just to mention, I have 64MB of physical memory, and my machine is
definitely not memory starved, but it also suffers from some of the
recent VM changes.

Yep.  Has anybody else got observations about what sort of
configurations are helped or hindered by the current 2.1 changes?

That (removing cache limits) is one of my favorite changes.

Free memory == unused memory == bad policy!

There is no reason why any of the caches would not utilize all of the
free memory at any given moment.

The existing limits don't affect the ability of the cache to grow; they
just give a target bound for the cache when we start trying to get pages
back for something else.

If anybody want to see, I can provide benchmark results, but I'm not
prepared to compile another kernel image if nobody's interested. :)

Well, I've been compiling kernels all day for this. :)  Any information
you can give will help, but for now it does look as if backing out the
cache ageing is a necessary first step.

--Stephen
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