lkml.org 
[lkml]   [2006]   [May]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [rfc][patch] remove racy sync_page?
Nick Piggin writes:
> Nick Piggin wrote:
> > Linus Torvalds wrote:
> >
> >>
> >> Why do you think the IO layer should get larger requests?
> >
> >
> > For workloads where plugging helps (ie. lots of smaller, contiguous
> > requests going into the IO layer), should be pretty good these days
> > due to multiple readahead and writeback.
>
> Let me try again.
>
> For workloads where plugging helps (ie. lots of smaller, contiguous
> requests going into the IO layer), the request pattern should be
> pretty good without plugging these days, due to multiple page
> readahead and writeback.

Pageout by VM scanner doesn't benefit from those, and it is still quite
important in some workloads (e.g., mmap intensive).

Nikita.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-05-30 10:31    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site