Re: page_launder() on 2.4.9/10 issue

From: Kurt Garloff (garloff@suse.de)
Date: Thu Sep 06 2001 - 08:18:27 EST

On Thu, Sep 06, 2001 at 10:03:03AM -0300, Rik van Riel wrote:
> On Thu, 6 Sep 2001, Daniel Phillips wrote:
> > On September 6, 2001 02:32 pm, Rik van Riel wrote:
> > > Two words: "IO clustering".
> >
> > Yes, *after* the IO queue is fully loaded that makes sense. Leaving it
> > partly or fully idle while waiting for it to load up makes no sense at all.
> >
> > IO clustering will happen naturally after the queue loads up.
>
> Exactly, so we need to give the queue some time to load
> up, right ?

Just use two limits:
* Time: After some time (say two seconds), we can always afford to write it
  out
* Queue filling: After it has a certain size, it's worth doing a writing.

Regards, 

-- 
Kurt Garloff  <garloff@suse.de>                          Eindhoven, NL
GPG key: See mail header, key servers         Linux kernel development
SuSE GmbH, Nuernberg, DE                                SCSI, Security
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