Messages in this thread | | | Date | Tue, 2 Aug 2005 23:07:46 +0200 | From | Ingo Molnar <> | Subject | Re: [patch] remove sys_set_zone_reclaim() |
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* Martin Hicks <mort@sgi.com> wrote:
> On Mon, Aug 01, 2005 at 09:54:26PM +0200, Ingo Molnar wrote: > > > > * Andrew Morton <akpm@osdl.org> wrote: > > > > > > We could perhaps add a CAP_SYS_ADMIN-only sysctl for this hack, > > > > > > That would be more appropriate. > > > > > > (I'm still not sure what happened to the idea of adding a call to > > > "clear out this node+zone's pagecache now" rather than "set this > > > noed+zone's policy") > > > > lets do that as a sysctl hack. It would be useful for debugging purposes > > anyway. But i'm not sure whether it's the same issue - Martin? > > (Sorry..I was on vacation yesterday) > > Yes, this is the same issue with a different way of making it happen. > Setting a zone's policy allows reclaim to happen automatically. > > I'll send in a patch to add a sysctl to do the manual dumping of > pagecache really soon.
cool! [ Incidentally, when i found this problem i was looking for existing bits in the kernel to write such a patch myself (which i wanted to use on non-NUMA to create more reproducable workloads for performance-testing) - now i'll wait for your patch. ]
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