From patchwork Sat Feb 6 09:28:28 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhanghailiang X-Patchwork-Id: 8241931 Return-Path: X-Original-To: patchwork-qemu-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 C178CBEEE5 for ; Sat, 6 Feb 2016 09:31:59 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2E0EB2024F for ; Sat, 6 Feb 2016 09:31:59 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6CC34200F2 for ; Sat, 6 Feb 2016 09:31:58 +0000 (UTC) Received: from localhost ([::1]:52550 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aRzDh-0005zD-QK for patchwork-qemu-devel@patchwork.kernel.org; Sat, 06 Feb 2016 04:31:57 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37993) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aRzBT-0002Fc-L8 for qemu-devel@nongnu.org; Sat, 06 Feb 2016 04:29:41 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aRzBR-0001Nt-1G for qemu-devel@nongnu.org; Sat, 06 Feb 2016 04:29:39 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:22254) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aRzBQ-0001N4-BN for qemu-devel@nongnu.org; Sat, 06 Feb 2016 04:29:36 -0500 Received: from 172.24.1.51 (EHLO szxeml425-hub.china.huawei.com) ([172.24.1.51]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id BVU12136; Sat, 06 Feb 2016 17:29:27 +0800 (CST) Received: from localhost (10.177.24.212) by szxeml425-hub.china.huawei.com (10.82.67.180) with Microsoft SMTP Server id 14.3.235.1; Sat, 6 Feb 2016 17:29:20 +0800 From: zhanghailiang To: Date: Sat, 6 Feb 2016 17:28:28 +0800 Message-ID: <1454750932-7556-17-git-send-email-zhang.zhanghailiang@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1454750932-7556-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1454750932-7556-1-git-send-email-zhang.zhanghailiang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.24.212] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.56B5BCF7.00FE, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 664da626d07251f1e91b33cd71648b30 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 119.145.14.66 Cc: xiecl.fnst@cn.fujitsu.com, lizhijian@cn.fujitsu.com, quintela@redhat.com, armbru@redhat.com, yunhong.jiang@intel.com, eddie.dong@intel.com, peter.huangpeng@huawei.com, dgilbert@redhat.com, zhanghailiang , arei.gonglei@huawei.com, stefanha@redhat.com, amit.shah@redhat.com, zhangchen.fnst@cn.fujitsu.com, hongyang.yang@easystack.cn Subject: [Qemu-devel] [PATCH COLO-Frame v14 16/40] COLO: synchronize PVM's state to SVM periodically X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Do checkpoint periodically, the default interval is 200ms. Signed-off-by: zhanghailiang Signed-off-by: Li Zhijian Reviewed-by: Dr. David Alan Gilbert --- v12: - Add Reviewed-by tag v11: - Fix wrong sleep time for checkpoint period. (Dave's review comment) --- migration/colo.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/migration/colo.c b/migration/colo.c index 473fb14..ba3b310 100644 --- a/migration/colo.c +++ b/migration/colo.c @@ -11,6 +11,7 @@ */ #include +#include "qemu/timer.h" #include "sysemu/sysemu.h" #include "migration/colo.h" #include "trace.h" @@ -230,6 +231,7 @@ out: static void colo_process_checkpoint(MigrationState *s) { QEMUSizedBuffer *buffer = NULL; + int64_t current_time, checkpoint_time = qemu_clock_get_ms(QEMU_CLOCK_HOST); Error *local_err = NULL; int ret; @@ -261,11 +263,21 @@ static void colo_process_checkpoint(MigrationState *s) trace_colo_vm_state_change("stop", "run"); while (s->state == MIGRATION_STATUS_COLO) { + current_time = qemu_clock_get_ms(QEMU_CLOCK_HOST); + if (current_time - checkpoint_time < + s->parameters[MIGRATION_PARAMETER_X_CHECKPOINT_DELAY]) { + int64_t delay_ms; + + delay_ms = s->parameters[MIGRATION_PARAMETER_X_CHECKPOINT_DELAY] - + (current_time - checkpoint_time); + g_usleep(delay_ms * 1000); + } /* start a colo checkpoint */ ret = colo_do_checkpoint_transaction(s, buffer); if (ret < 0) { goto out; } + checkpoint_time = qemu_clock_get_ms(QEMU_CLOCK_HOST); } out: