linux-kernel - Re: Large Pages - Linux Foundation HPC

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Message-Id: <1240728861.29485.41.camel@nimitz>
Date:	Sat, 25 Apr 2009 23:54:21 -0700
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	Wu Fengguang <fengguang.wu@...el.com>
Cc:	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Badari Pulavarty <pbadari@...ibm.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Vivek Kashyap <vivk@...ibm.com>,
	Mel Gorman <mel@...ux.vnet.ibm.com>,
	Robert MacFarlan <Robert_MacFarlan@...ibm.com>,
	"Fu, Michael" <michael.fu@...el.com>
Subject: Re: Large Pages - Linux Foundation HPC

On Sat, 2009-04-25 at 16:48 +0800, Wu Fengguang wrote:
> Based on Dave's descriptions that HPC apps typically
> - do mlock(), to pre-populate memory and pin them in memory
> - run at fresh boot, with loads of high order pages available

There are definitely some of them that do this, but it certainly isn't
all.  It may not even be the norm.  

-- Dave

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