From patchwork Wed Mar 23 08:06:20 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Changlong Xie X-Patchwork-Id: 8647671 Return-Path: X-Original-To: patchwork-xen-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 78723C0555 for ; Wed, 23 Mar 2016 08:06:41 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 91121203B1 for ; Wed, 23 Mar 2016 08:06:40 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BE4BC203A5 for ; Wed, 23 Mar 2016 08:06:39 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aidmP-0001vQ-GY; Wed, 23 Mar 2016 08:04:37 +0000 Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1aidmO-0001rj-P8 for xen-devel@lists.xen.org; Wed, 23 Mar 2016 08:04:36 +0000 Received: from [193.109.254.147] by server-2.bemta-14.messagelabs.com id 33/5D-03301-41E42F65; Wed, 23 Mar 2016 08:04:36 +0000 X-Env-Sender: xiecl.fnst@cn.fujitsu.com X-Msg-Ref: server-7.tower-27.messagelabs.com!1458720267!33274420!4 X-Originating-IP: [59.151.112.132] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 8.11; banners=-,-,- X-VirusChecked: Checked Received: (qmail 4773 invoked from network); 23 Mar 2016 08:04:35 -0000 Received: from cn.fujitsu.com (HELO heian.cn.fujitsu.com) (59.151.112.132) by server-7.tower-27.messagelabs.com with SMTP; 23 Mar 2016 08:04:35 -0000 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="4882433" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 23 Mar 2016 16:04:27 +0800 Received: from G08CNEXCHPEKD03.g08.fujitsu.local (unknown [10.167.33.85]) by cn.fujitsu.com (Postfix) with ESMTP id 4451F408D264; Wed, 23 Mar 2016 16:04:25 +0800 (CST) Received: from changlox.g08.fujitsu.local (10.167.225.55) by G08CNEXCHPEKD03.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.279.2; Wed, 23 Mar 2016 16:04:25 +0800 From: Changlong Xie To: xen devel , Konrad Rzeszutek Wilk , Andrew Cooper , Ian Campbell , Ian Jackson , Wei Liu Date: Wed, 23 Mar 2016 16:06:20 +0800 Message-ID: <1458720400-4699-7-git-send-email-xiecl.fnst@cn.fujitsu.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1458720400-4699-1-git-send-email-xiecl.fnst@cn.fujitsu.com> References: <1458720400-4699-1-git-send-email-xiecl.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.225.55] X-yoursite-MailScanner-ID: 4451F408D264.AFE61 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: xiecl.fnst@cn.fujitsu.com X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Cc: Lars Kurth , Changlong Xie , Wen Congyang , Li Zhijian , Gui Jianfeng , Jiang Yunhong , Dong Eddie , Anthony Perard , Shriram Rajagopalan , Yang Hongyang Subject: [Xen-devel] [PATCH v12 06/26] docs: add colo readme X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Wen Congyang add colo readme, refer to http://wiki.xen.org/wiki/COLO_-_Coarse_Grain_Lock_Stepping Signed-off-by: Yang Hongyang Signed-off-by: Wen Congyang Signed-off-by: Changlong Xie Acked-by: Ian Campbell Acked-by: Wei Liu --- docs/README.colo | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 docs/README.colo diff --git a/docs/README.colo b/docs/README.colo new file mode 100644 index 0000000..466eb72 --- /dev/null +++ b/docs/README.colo @@ -0,0 +1,9 @@ +COLO FT/HA (COarse-grain LOck-stepping Virtual Machines for Non-stop Service) +project is a high availability solution. Both primary VM (PVM) and secondary VM +(SVM) run in parallel. They receive the same request from client, and generate +response in parallel too. If the response packets from PVM and SVM are +identical, they are released immediately. Otherwise, a VM checkpoint (on demand) +is conducted. + +See the website at http://wiki.xen.org/wiki/COLO_-_Coarse_Grain_Lock_Stepping +for details.