From patchwork Wed Sep 9 14:52:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zheng Chuan X-Patchwork-Id: 274132 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F846C433E2 for ; Wed, 9 Sep 2020 14:43:06 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A2E9422242 for ; Wed, 9 Sep 2020 14:43:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A2E9422242 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:57172 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kG1JQ-0003f6-Nh for qemu-devel@archiver.kernel.org; Wed, 09 Sep 2020 10:43:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55510) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kG1Ia-0002BX-PU for qemu-devel@nongnu.org; Wed, 09 Sep 2020 10:42:12 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:45802 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kG1IY-0006zN-Ow for qemu-devel@nongnu.org; Wed, 09 Sep 2020 10:42:12 -0400 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 8F502D2FE3841BC48FB9; Wed, 9 Sep 2020 22:42:02 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.487.0; Wed, 9 Sep 2020 22:41:57 +0800 From: Chuan Zheng To: , , , Subject: [RFC][PATCH v1 0/7] *** Add Multifd support for TLS migration *** Date: Wed, 9 Sep 2020 22:52:50 +0800 Message-ID: <1599663177-53993-1-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.32; envelope-from=zhengchuan@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/09 10:42:03 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: zhengchuan@huawei.com, zhang.zhanghailiang@huawei.com, yuxiating@huawei.com, qemu-devel@nongnu.org, xiexiangyou@huawei.com, alex.chen@huawei.com, jinyan12@huawei.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" TLS migration could easily reach bottleneck of cpu because of encryption and decryption in migration thread. In our test, the tls migration could only reach 300MB/s under bandwidth of 500MB/s. Inspired by multifd, we add multifd support for tls migration to make fully use of given net bandwidth at the cost of multi-cpus and could reduce at most of 100% migration time with 4U16G test vm. Evaluate migration time of migration vm. The VM specifications for migration are as follows: - VM use 4-K page; - the number of VCPU is 4; - the total memory is 16Gigabit; - use 'mempress' tool to pressurize VM(mempress 4096 100); - migration flag is 73755 (8219 + 65536 (TLS)) vs 204827 (8219 + 65536 (TLS) + 131072(Multifd)) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | | TLS | MultiFD + TLS (2 channel) | --------------------------------------------------------t--------------------------- | mempress 1024 120 | 25.035s | 15.067s | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | mempress 1024 200 | 48.798s | 25.334s | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | mempress 1024 300 | Migration Failed | 25.617s | ------------------------------------------------------------------------------------ Chuan Zheng (7): migration/tls: save hostname into MigrationState migration/tls: extract migration_tls_client_create for common-use migration/tls: add MigrationState into MultiFDSendParams migration/tls: extract cleanup function for common-use migration/tls: add support for tls check migration/tls: add support for multifd tls-handshake migration/tls: add trace points for multifd-tls migration/channel.c | 5 ++ migration/migration.c | 1 + migration/migration.h | 5 ++ migration/multifd.c | 121 +++++++++++++++++++++++++++++++++++++++++++------ migration/multifd.h | 2 + migration/tls.c | 26 +++++++---- migration/tls.h | 6 +++ migration/trace-events | 5 ++ 8 files changed, 149 insertions(+), 22 deletions(-)