From patchwork Tue Mar 16 12:57:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kunkun Jiang X-Patchwork-Id: 12142155 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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 B9286C433E0 for ; Tue, 16 Mar 2021 12:59:25 +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 0479265059 for ; Tue, 16 Mar 2021 12:59:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0479265059 Authentication-Results: mail.kernel.org; dmarc=fail (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]:45334 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lM9IB-0000D4-Rx for qemu-devel@archiver.kernel.org; Tue, 16 Mar 2021 08:59:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49428) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lM9H8-0007or-HV for qemu-devel@nongnu.org; Tue, 16 Mar 2021 08:58:18 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:3937) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lM9H1-0000xR-Vx for qemu-devel@nongnu.org; Tue, 16 Mar 2021 08:58:18 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4F0CvD2M0GzNnSn; Tue, 16 Mar 2021 20:55:36 +0800 (CST) Received: from DESKTOP-6NKE0BC.china.huawei.com (10.174.185.210) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.498.0; Tue, 16 Mar 2021 20:57:52 +0800 From: Kunkun Jiang To: David Edmondson , Peter Xu , Juan Quintela , "Dr . David Alan Gilbert" , Andrey Gruzdev , =?utf-8?q?C=C3=A9dric_Le_Goa?= =?utf-8?q?ter?= , Alexey Romko , "open list:All patches CC here" Subject: [PATCH v4 0/2] Some modification about ram_save_host_page() Date: Tue, 16 Mar 2021 20:57:14 +0800 Message-ID: <20210316125716.1243-1-jiangkunkun@huawei.com> X-Mailer: git-send-email 2.26.2.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.174.185.210] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.191; envelope-from=jiangkunkun@huawei.com; helo=szxga05-in.huawei.com 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_H2=-0.001, SPF_HELO_NONE=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: Zenghui Yu , wanghaibin.wang@huawei.com, Keqian Zhu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi all, This series include patches as below: Patch 1: - reduce unnecessary rate limiting in ram_save_host_page() Patch 2: - optimized ram_save_host_page() by using migration_bitmap_find_dirty() to find dirty pages History: v3 -> v4: - Remove the modification to ram_save_host_page() comment [Peter Xu] - Remove the renaming of tmppages v2 -> v3: - Reduce unnecessary rate limiting if nothing is sent in the current iteration [David Edmondson] - Invert the body of the loop in ram_save_host_page() [David Edmondson] v1 -> v2: - Modify ram_save_host_page() comment [David Edmondson] - Remove 'goto' [David Edmondson] Kunkun Jiang (2): migration/ram: Reduce unnecessary rate limiting migration/ram: Optimize ram_save_host_page() migration/ram.c | 34 +++++++++++++++++++--------------- 1 file changed, 19 insertions(+), 15 deletions(-)