Messages in this thread |  | | Date | Sun, 16 Sep 2001 20:16:57 +0200 | From | Stephan von Krawczynski <> | Subject | Re: broken VM in 2.4.10-pre9 |
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On Sun, 16 Sep 2001 19:06:45 +0200 (MET) Ricardo Galli <gallir@m3d.uib.es> wrote:
> On Sun, 16 Sep 2001, Jeremy Zawodny wrote: > > > > Agreed. I'd be great if there was an option to say "Don't swap out > > memory that was allocated by these programs. If you run out of disk > > buffers, toss the oldest ones and start re-using them." > > More easy though (for cases of listening mp3's and backups): cache pages > that were accesed only "once"(*) several seconds ago must be discarded > first. It only implies a check against an access counter and a "last > accesed" epoch fields of the page.
Well, I guess this is everybody's first idea about the problem: make an initial timestamp for knowing how _old_ an allocation really is, and make an access counter. Ok. The first is easy, but how do you achieve an access-counter? If this was solved, the problem is solved. You can do really nice aging with access to such kind of information. Any ideas?
Regards, Stephan
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