Messages in this thread | | | Subject | Re: An idea for prefetching swapped memory... | From | (Måns Rullgård) | Date | 07 Apr 2003 13:24:41 +0200 |
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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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