From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olaf Hering Subject: Re: [PATCH] xenpaging:add a new array to speed up page-in in xenpaging Date: Thu, 12 Jan 2012 15:20:32 +0100 Message-ID: <20120112142032.GD8324@aepfle.de> References: <052727b8165ce6e05002.1325732917@h00166998.china.huawei.com> <20229.60517.106414.825193@mariner.uk.xensource.com> <001301cccc1b$d7ca1470$875e3d50$@com> <20120110173956.GA2213@aepfle.de> <000901ccd030$d6f01e50$84d05af0$@com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <000901ccd030$d6f01e50$84d05af0$@com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Hongkaixing Cc: "'bicky.'" , xiaowei.yang@huawei.com, xen-devel@lists.xensource.com, 'Ian Jackson' , yanqiangjun@huawei.com List-Id: xen-devel@lists.xenproject.org On Wed, Jan 11, Hongkaixing wrote: > Sorry, this mail is sent out in hurry. In fact we send out 2 patches , and this is only one patch. The second patch is the key. > > The second patch is about adding a fast way to trigger page-in. > Titile is [PATCH 2 of 2] xenpaging:change page-in process to speed up page-in in xenpaging. > > http://lists.xen.org/archives/html/xen-devel/2012-01/msg00210.html > > In this patch, we get the return value from p2m_mem_paging_populate(). > Because we want to known whether this p2mt is changed by balloon or others. > > After this patch is published, we have received much advice, so a more perfect patch will be sent out later There is work being done to do page-in and page-out in a different way. Please have a look at this work, it replaces what is currently done: http://lists.xen.org/archives/html/xen-devel/2012-01/msg00753.html Olaf