lkml.org 
[lkml]   [2010]   [Nov]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/8] Use memory compaction instead of lumpy reclaim during high-order allocations
On Thu, Nov 18, 2010 at 05:26:27PM +0900, KAMEZAWA Hiroyuki wrote:
> On Thu, 18 Nov 2010 08:12:54 +0000
> Mel Gorman <mel@csn.ul.ie> wrote:
>
> > > > I'm hoping that this series also removes the
> > > > necessity for the "delete lumpy reclaim" patch from the THP tree.
> > >
> > > Now I'm sad. I read all that and was thinking "oh goody, we get to
> > > delete something for once". But no :(
> > >
> > > If you can get this stuff to work nicely, why can't we remove lumpy
> > > reclaim?
> >
> > Ultimately we should be able to. Lumpy reclaim is still there for the
> > !CONFIG_COMPACTION case and to have an option if we find that compaction
> > behaves badly for some reason.
> >
>
> Hmm. CONFIG_COMPACTION depends on CONFIG_MMU. lumpy reclaim will be for NOMMU,
> finally ?
>

Also true. As it is, lumpy reclaim is still there but it's never called
if CONFIG_COMPACTION is set so it's already side-lined.

--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab


\
 
 \ /
  Last update: 2010-11-18 09:47    [W:0.073 / U:0.108 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site