From: mru@users.sourceforge.net (Måns Rullgård)
To: linux-kernel@vger.kernel.org
Subject: Re: An idea for prefetching swapped memory...
Date: 07 Apr 2003 13:24:41 +0200 [thread overview]
Message-ID: <yw1xsmsuk0sm.fsf@nogger.e.kth.se> (raw)
In-Reply-To: Thomas Schlichter's message of "Mon, 7 Apr 2003 12:47:56 +0200"
Thomas Schlichter <schlicht@rumms.uni-mannheim.de> writes:
> > This has been argued before. Why would the last swapped out pages
> > be the best to swap in? The vm subsystem has (somehow) decided
> > they're the least likely to be used again so why swap them in?
> > Alternatively how would it know which to swap in instead? Con
>
> What I wanted to say is that if there is free memory it should be
> filled with the pages that were in use before the memory got
> rare. And these are the pages swapped out last. The other swapped
> out pages are swapped out even longer and so will likely not be used
> in the near future... (That's what the LRU algorithm says...)
Would it be possible to track the most recently used swapped out page?
This would possibly be a good candidate for speculative loading.
--
Måns Rullgård
mru@users.sf.net
next prev parent reply other threads:[~2003-04-07 11:13 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-07 8:26 Thomas Schlichter
2003-04-07 10:21 ` Con Kolivas
2003-04-07 10:47 ` Thomas Schlichter
2003-04-07 11:24 ` Måns Rullgård [this message]
2003-04-07 12:46 ` Thomas Schlichter
2003-04-07 18:33 ` Mark Mielke
2003-04-07 13:24 ` Helge Hafting
2003-04-07 14:19 ` Chris Friesen
2003-04-07 14:39 ` Jörn Engel
2003-04-07 18:37 ` Mark Mielke
2003-04-07 18:49 ` Chris Friesen
2003-04-07 19:35 ` Mark Mielke
2003-04-07 19:39 ` Robert White
2003-04-07 20:44 ` Chris Friesen
2003-04-07 11:36 ` Christophe Saout
2003-04-07 11:48 ` Måns Rullgård
2003-04-07 12:19 ` Jörn Engel
2003-04-07 12:45 ` Christophe Saout
2003-04-07 16:30 ` Magnus Danielson
2003-04-07 12:32 ` David Zaffiro
2003-04-07 12:43 ` Jörn Engel
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