From patchwork Tue Oct 18 12:10:07 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhanghailiang X-Patchwork-Id: 9382069 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8BB9660839 for ; Tue, 18 Oct 2016 12:20:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 79EB32679B for ; Tue, 18 Oct 2016 12:20:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 69706295B1; Tue, 18 Oct 2016 12:20:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 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.wl.linuxfoundation.org (Postfix) with ESMTPS id AAF7B295AF for ; Tue, 18 Oct 2016 12:20:38 +0000 (UTC) Received: from localhost ([::1]:41089 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bwTNl-0005h9-U7 for patchwork-qemu-devel@patchwork.kernel.org; Tue, 18 Oct 2016 08:20:37 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36402) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bwTEo-0006qj-A0 for qemu-devel@nongnu.org; Tue, 18 Oct 2016 08:11:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bwTEl-00055A-LT for qemu-devel@nongnu.org; Tue, 18 Oct 2016 08:11:22 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:20899) by eggs.gnu.org with esmtps (TLS1.0:RSA_ARCFOUR_SHA1:16) (Exim 4.71) (envelope-from ) id 1bwTEk-00052k-FK for qemu-devel@nongnu.org; Tue, 18 Oct 2016 08:11:19 -0400 Received: from 172.24.1.36 (EHLO szxeml422-hub.china.huawei.com) ([172.24.1.36]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id CJR35520; Tue, 18 Oct 2016 20:10:59 +0800 (CST) Received: from localhost (10.177.24.212) by szxeml422-hub.china.huawei.com (10.82.67.152) with Microsoft SMTP Server id 14.3.235.1; Tue, 18 Oct 2016 20:10:53 +0800 From: zhanghailiang To: , Date: Tue, 18 Oct 2016 20:10:07 +0800 Message-ID: <1476792613-11712-12-git-send-email-zhang.zhanghailiang@huawei.com> X-Mailer: git-send-email 2.7.2.windows.1 In-Reply-To: <1476792613-11712-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1476792613-11712-1-git-send-email-zhang.zhanghailiang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.24.212] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 119.145.14.66 Subject: [Qemu-devel] [PATCH COLO-Frame (Base) v21 11/17] COLO: Synchronize PVM's state to SVM periodically X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: xiecl.fnst@cn.fujitsu.com, zhanghailiang , lizhijian@cn.fujitsu.com, qemu-devel@nongnu.org, dgilbert@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" 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 Reviewed-by: Amit Shah --- v12: - Add Reviewed-by tag v11: - Fix wrong sleep time for checkpoint period. (Dave's comment) --- migration/colo.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/migration/colo.c b/migration/colo.c index 4fdb7da..7c7d169 100644 --- a/migration/colo.c +++ b/migration/colo.c @@ -11,6 +11,7 @@ */ #include "qemu/osdep.h" +#include "qemu/timer.h" #include "sysemu/sysemu.h" #include "migration/colo.h" #include "io/channel-buffer.h" @@ -226,6 +227,7 @@ static void colo_process_checkpoint(MigrationState *s) { QIOChannelBuffer *bioc; QEMUFile *fb = NULL; + int64_t current_time, checkpoint_time = qemu_clock_get_ms(QEMU_CLOCK_HOST); Error *local_err = NULL; int ret; @@ -254,10 +256,20 @@ 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.x_checkpoint_delay) { + int64_t delay_ms; + + delay_ms = s->parameters.x_checkpoint_delay - + (current_time - checkpoint_time); + g_usleep(delay_ms * 1000); + } ret = colo_do_checkpoint_transaction(s, bioc, fb); if (ret < 0) { goto out; } + checkpoint_time = qemu_clock_get_ms(QEMU_CLOCK_HOST); } out: