lkml.org 
[lkml]   [2002]   [Aug]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: 2.4 kernel series and the oom_killer and /proc/sys/vm/overcommit_memory
Date
On Saturday 24 August 2002 05:46, Rik van Riel wrote:
> On Sat, 24 Aug 2002, Daniel Phillips wrote:
> > On Thursday 22 August 2002 19:32, Alan Cox wrote:
> > > 3 is a totally paranoid [overcommit policy] that will require everything in
> > > ram can be dumped to swap or paged back from backing store
> >
> > How do you handle the situation where you have a lot of shared memory in a
> > half-paged-out state, so that each shared page consumes both ram and swap?
>
> That will work fine with 'totally paranoid' mode. There is always
> enough swap space to hold _all_ pages, so everything will just
> continue to work.

Apparently, maximum available memory is limited to

physical memory + (swap - physical memory) = just swap

in this case, and if swap is smaller than (the potentially swappable portion
of) physical memory you might as well just turn it off.

--
Daniel
-
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: 2005-03-22 13:28    [W:0.102 / U:1.180 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site