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    SubjectRe: [RFC] mmaped copy too slow?
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    On Tue, 2008-01-15 at 18:03 +0900, KOSAKI Motohiro wrote:
    > Hi Peter,
    >
    > > > > 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.
    >
    > Could you please tell me your mail subject or URL?
    > I hope know why people didn't like.

    I think this is the last thread on the subject:

    http://lkml.org/lkml/2007/7/21/219





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