Re: 2.4.8-pre1 and dbench -20% throughput

Daniel Phillips
2001-07-29T15:34:56Z

On Sunday 29 July 2001 16:48, Rik van Riel wrote:
> On Sun, 29 Jul 2001, Daniel Phillips wrote:
> > On Saturday 28 July 2001 22:26, Linus Torvalds wrote:
> > > We only mark the page referenced when we read it, we don't
> > > actually increment the age.
> >
> > For already-cached pages we have:
> >
> > do_generic_file_read->__find_page_nolock->age_page_up
>
> s/have/had/
>
> This was changed quite a while ago.

Yes, correct. (Should teach me not to rely on a 2.4.2 tree for my
cross-reference.) Hmm, so now age_page_up is unused and
age_page_up_nolock is called from just one place, refill_inactive_scan.
The !age test still doesn't make sense.

--
Daniel