Re: [RFC] mmaped copy too slow?

KOSAKI Motohiro
2008-01-15T09:04:45Z

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.

thanks

- kosaki