From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59646) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WJKPT-0008On-Q1 for qemu-devel@nongnu.org; Fri, 28 Feb 2014 05:11:20 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WJKPP-00018z-34 for qemu-devel@nongnu.org; Fri, 28 Feb 2014 05:11:15 -0500 Received: from mx1.redhat.com ([209.132.183.28]:27976) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WJKPO-00017z-Qu for qemu-devel@nongnu.org; Fri, 28 Feb 2014 05:11:11 -0500 Date: Fri, 28 Feb 2014 09:19:53 +0000 From: "Dr. David Alan Gilbert" Message-ID: <20140228091952.GA2695@work-vm> References: <33183CC9F5247A488A2544077AF19020815D225E@SZXEMA503-MBS.china.huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <33183CC9F5247A488A2544077AF19020815D225E@SZXEMA503-MBS.china.huawei.com> Subject: Re: [Qemu-devel] [PATCH 0/7] migration: Optimization the xbzrle and fix two corruption issues List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Gonglei (Arei)" Cc: Peter Maydell , Juan Quintela , "pl@kamp.de" , "qemu-devel@nongnu.org" , "owasserm@redhat.com" , "aliguori@amazon.com" , "chenliang (T)" , "pbonzini@redhat.com" * Gonglei (Arei) (arei.gonglei@huawei.com) wrote: Hi, > a. Optimization the xbzrle remarkable decrease the cache misses. > The efficiency of compress increases more than fifty times. > Before the patch set, the cache almost totally miss when the > number of cache item less than the dirty page number. Now the > hot pages in the cache will not be replaced by other pages. Nice, what do you use as your performance test case for xbzrle? Dave -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK