From mboxrd@z Thu Jan 1 00:00:00 1970 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=-3.8 required=3.0 tests=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 648D6CA9EB9 for ; Tue, 22 Oct 2019 11:20:10 +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 3DEF821783 for ; Tue, 22 Oct 2019 11:20:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3DEF821783 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=virtuozzo.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:53448 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iMsCu-000650-RU for qemu-devel@archiver.kernel.org; Tue, 22 Oct 2019 07:20:08 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44010) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iMsB3-0004AD-Mq for qemu-devel@nongnu.org; Tue, 22 Oct 2019 07:18:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iMsB2-0007h2-LN for qemu-devel@nongnu.org; Tue, 22 Oct 2019 07:18:13 -0400 Received: from relay.sw.ru ([185.231.240.75]:51902) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iMsB0-0007dj-39; Tue, 22 Oct 2019 07:18:10 -0400 Received: from [10.94.3.0] (helo=kvm.qa.sw.ru) by relay.sw.ru with esmtp (Exim 4.92.2) (envelope-from ) id 1iMsAw-0003JX-9C; Tue, 22 Oct 2019 14:18:06 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Subject: [PATCH v3 0/6] block-copy: memory limit Date: Tue, 22 Oct 2019 14:17:59 +0300 Message-Id: <20191022111805.3432-1-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 185.231.240.75 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: kwolf@redhat.com, vsementsov@virtuozzo.com, qemu-devel@nongnu.org, mreitz@redhat.com, den@openvz.org, jsnow@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" I'm going to bring block-status driven, async copying process to block-copy, to make it fast. The first step is to limit memory usage of backup, here is it. v3: 03: add Max's r-b 04: fix commit message and include guards, add Max's r-b 05-06: add Max's r-b v2: [mostly by Max's comments] Now based on master (Thank you Max!) 01: add Max's r-b 02: add Max's r-b 03: - refactor block_copy_do_copy goto/return - add small comment to block_copy_do_copy 04: - a lot of renaming and wording fixes - refactor to use "available" instead of "taken" - refactor co_get_from_shres 05: rebase on 04 changes 06: drop extra things from max_transfer calculation Vladimir Sementsov-Ogievskiy (6): block/block-copy: allocate buffer in block_copy_with_bounce_buffer block/block-copy: limit copy_range_size to 16 MiB block/block-copy: refactor copying util: introduce SharedResource block/block-copy: add memory limit block/block-copy: increase buffered copy request include/block/block-copy.h | 5 +- include/qemu/co-shared-resource.h | 71 ++++++++++++ block/block-copy.c | 182 +++++++++++++++--------------- util/qemu-co-shared-resource.c | 76 +++++++++++++ block/trace-events | 6 +- util/Makefile.objs | 1 + 6 files changed, 249 insertions(+), 92 deletions(-) create mode 100644 include/qemu/co-shared-resource.h create mode 100644 util/qemu-co-shared-resource.c -- 2.21.0