Messages in this thread |  | | | Subject | Re: [RFC] mmaped copy too slow? | | From | Peter Zijlstra <> | | Date | Tue, 15 Jan 2008 09:57:58 +0100 |
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On Tue, 2008-01-15 at 12:20 +0900, KOSAKI Motohiro wrote: > Hi Rik > > > While being able to deal with used-once mappings in page reclaim > > could be a good idea, this would require us to be able to determine > > the difference between a page that was accessed once since it was > > faulted in and a page that got accessed several times. > > it makes sense that read ahead hit assume used-once mapping, may be. > I will try it.
I once had a patch that made read-ahead give feedback into page reclaim, but people didn't like it.
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