On Fri, 26 Jan 2007 10:10:27 -0800
Andrew Morton <[email protected]> wrote:
> On Fri, 26 Jan 2007 07:44:42 -0800 (PST)
> Christoph Lameter <[email protected]> wrote:
>
> > On Fri, 26 Jan 2007, Andrew Morton wrote:
> >
> > > > > > Track mlocked pages via a ZVC
> > >
> > > Why?
> >
> > Large amounts of mlocked pages may be a problem for
> >
> > 1. Reclaim behavior.
> >
> > 2. Defragmentation
> >
>
> We know that. What has that to do with this patch?
>
3. just counting mlocked pages....
I have an experience that I was asked by the user to calculate "free" pages
on the system where several big 'mlockall' process runs, which shared amounts of
pages...when I answered the user cannot trust the result of "/bin/free"
if you use mlock processes.
It was very fun :P
-Kame
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