From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Deegan Subject: Re: [PATCH 3 of 4] xen, pod: Only sweep in an emergency, and only for 4k pages Date: Thu, 28 Jun 2012 13:48:20 +0100 Message-ID: <20120628124820.GL34995@ocelot.phlegethon.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: George Dunlap Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org At 17:57 +0100 on 27 Jun (1340819850), George Dunlap wrote: > xen,pod: Only sweep in an emergency, and only for 4k pages > > Testing has shown that doing sweeps for superpages slows down boot > significantly, but does not result in a significantly higher number of > superpages after boot. Early sweeping for 4k pages causes superpages > to be broken up unnecessarily. > > Only sweep if we're really out of memory. > > v2: > - Move unrelated code-motion hunk to another patch > > Signed-off-by: George Dunlap Acked-by: Tim Deegan