Messages in this thread |  | | Date | Mon, 25 Sep 2000 19:26:56 -0300 (BRST) | From | Rik van Riel <> | Subject | Re: [patch] vmfixes-2.4.0-test9-B2 - fixing deadlocks |
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On Tue, 26 Sep 2000, Andrea Arcangeli wrote: > On Mon, Sep 25, 2000 at 04:26:17PM -0300, Rik van Riel wrote: > > > > It doesn't --- that is part of the design. The vm scanner propagates > > > > > > And that's the inferior part of the design IMHO. > > > > Indeed, but physical page based aging is a definate > > 2.5 thing ... ;( > > I'm talking about the fact that if you have a file mmapped in > 1.5G of RAM test9 will waste time rolling between LRUs 384000 > pages, while classzone won't ever see 1 of those pages until you > run low on fs cache.
IMHO this is a minor issue because: 1) you need to do page replacement with shared pages right 2) you don't /want/ to run low on fs cache, you want to have a good balance between thee cache(s) and the processes
OTOH, if you have a way to keep fair page aging and fix the CPU time issue at the same time, I'd love to see it.
regards,
Rik -- "What you're running that piece of shit Gnome?!?!" -- Miguel de Icaza, UKUUG 2000
http://www.conectiva.com/ http://www.surriel.com/
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