Messages in this thread | | | Date | Tue, 22 Feb 2005 13:59:15 -0500 | From | Martin Hicks <> | Subject | Re: [PATCH/RFC] A method for clearing out page cache |
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On Tue, Feb 22, 2005 at 10:45:35AM -0800, Andrew Morton wrote: > Paul Jackson <pj@sgi.com> wrote: > > > > As Martin wrote, when he submitted this patch: > > > The motivation for this patch is for setting up High Performance > > > Computing jobs, where initial memory placement is very important to > > > overall performance. > > > > Any left over cache is wrong, for this situation. > > So... Cannot the applicaiton remove all its pagecache with posix_fadvise() > prior to exitting?
I think Paul's referring to pagecache (as well as other caches) that are on the node from other uses, not necessarily another HPC job that has recently terminated.
mh
-- Martin Hicks || Silicon Graphics Inc. || mort@sgi.com - 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/
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