lkml.org 
[lkml]   [2010]   [Dec]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 3/3] Provide control over unmapped pages
On Tue, 30 Nov 2010, Andrew Morton wrote:

> > +#define UNMAPPED_PAGE_RATIO 16
>
> Well. Giving 16 a name didn't really clarify anything. Attentive
> readers will want to know what this does, why 16 was chosen and what
> the effects of changing it will be.

The meaning is analoguous to the other zone reclaim ratio. But yes it
should be justified and defined.

> > Reviewed-by: Christoph Lameter <cl@linux.com>
>
> So you're OK with shoving all this flotsam into 100,000,000 cellphones?
> This was a pretty outrageous patchset!

This is a feature that has been requested over and over for years. Using
/proc/vm/drop_caches for fixing situations where one simply has too many
page cache pages is not so much fun in the long run.



\
 
 \ /
  Last update: 2010-12-01 16:03    [W:1.069 / U:0.420 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site