Re: [RFC] mmaped copy too slow?

Peter Zijlstra
2008-01-15T09:08:59Z

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: