From: Martin Hicks <mort@wildopensource.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Paul Jackson <pj@sgi.com>,
mingo@elte.hu, raybry@sgi.com, linux-kernel@vger.kernel.org,
hilgeman@sgi.com
Subject: Re: [PATCH/RFC] A method for clearing out page cache
Date: Tue, 22 Feb 2005 13:59:15 -0500 [thread overview]
Message-ID: <20050222185915.GP26705@localhost> (raw)
In-Reply-To: <20050222104535.0b3a3c65.akpm@osdl.org>
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
next prev parent reply other threads:[~2005-02-22 18:59 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-14 15:44 [PATCH/RFC] A method for clearing out page cache Martin Hicks
2005-02-15 3:37 ` Paul Jackson
2005-02-16 19:56 ` Martin Hicks
2005-02-21 19:27 ` Martin Hicks
2005-02-21 21:42 ` Andrew Morton
2005-02-21 22:12 ` Paul Jackson
2005-02-21 22:28 ` Andrew Morton
2005-02-21 23:52 ` Paul Jackson
2005-02-21 22:28 ` Ray Bryant
2005-02-21 22:41 ` Andrew Morton
2005-02-21 23:01 ` Ray Bryant
2005-02-22 7:53 ` Ingo Molnar
2005-02-22 8:07 ` Andrew Morton
2005-02-22 8:24 ` Ingo Molnar
2005-02-22 17:29 ` Ray Bryant
2005-02-22 11:26 ` Paul Jackson
2005-02-22 18:45 ` Andrew Morton
2005-02-22 18:59 ` Martin Hicks [this message]
2005-02-22 19:03 ` Ray Bryant
2005-02-23 0:14 ` Paul Jackson
2005-03-01 21:54 ` Pavel Machek
2005-02-21 21:52 ` Nish Aravamudan
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