Messages in this thread | | | Date | Sat, 27 Jan 2007 03:21:33 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: [RFC] Track mlock()ed pages |
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On Fri, 26 Jan 2007 10:10:27 -0800 Andrew Morton <akpm@osdl.org> wrote:
> On Fri, 26 Jan 2007 07:44:42 -0800 (PST) > Christoph Lameter <clameter@sgi.com> 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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