From patchwork Sat Aug 29 02:52:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zheng Chuan X-Patchwork-Id: 275180 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 842F4C433E6 for ; Sat, 29 Aug 2020 02:46:00 +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 5126F20838 for ; Sat, 29 Aug 2020 02:46:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5126F20838 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]:49118 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kBqsR-0002xr-H1 for qemu-devel@archiver.kernel.org; Fri, 28 Aug 2020 22:45:59 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49636) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kBqob-0003a2-1N for qemu-devel@nongnu.org; Fri, 28 Aug 2020 22:42:01 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:4672 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 1kBqoY-00021z-S2 for qemu-devel@nongnu.org; Fri, 28 Aug 2020 22:42:00 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 852BD700112ADC70577B; Sat, 29 Aug 2020 10:41:48 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.487.0; Sat, 29 Aug 2020 10:41:40 +0800 From: Chuan Zheng To: , , , , Subject: [PATCH v6 10/12] migration/dirtyrate: Implement calculate_dirtyrate() function Date: Sat, 29 Aug 2020 10:52:55 +0800 Message-ID: <1598669577-76914-11-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1598669577-76914-1-git-send-email-zhengchuan@huawei.com> References: <1598669577-76914-1-git-send-email-zhengchuan@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.190; envelope-from=zhengchuan@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/28 22:41:44 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: alex.chen@huawei.com, ann.zhuangyanying@huawei.com, zhang.zhanghailiang@huawei.com, xiexiangyou@huawei.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Implement calculate_dirtyrate() function. Signed-off-by: Chuan Zheng Signed-off-by: YanYing Zhuang --- migration/dirtyrate.c | 45 +++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 43 insertions(+), 2 deletions(-) diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c index 850126d..95ee23e 100644 --- a/migration/dirtyrate.c +++ b/migration/dirtyrate.c @@ -162,6 +162,21 @@ static void get_ramblock_dirty_info(RAMBlock *block, strcpy(info->idstr, qemu_ram_get_idstr(block)); } +static void free_ramblock_dirty_info(struct RamblockDirtyInfo *infos, int count) +{ + int i; + + if (!infos) { + return; + } + + for (i = 0; i < count; i++) { + g_free(infos[i].sample_page_vfn); + g_free(infos[i].hash_result); + } + g_free(infos); +} + static struct RamblockDirtyInfo * alloc_ramblock_dirty_info(int *block_index, struct RamblockDirtyInfo *block_dinfo) @@ -301,8 +316,34 @@ static int compare_page_hash_info(struct RamblockDirtyInfo *info, static void calculate_dirtyrate(struct DirtyRateConfig config) { - /* todo */ - return; + struct RamblockDirtyInfo *block_dinfo = NULL; + int block_index = 0; + int64_t msec = 0; + int64_t initial_time; + + rcu_register_thread(); + reset_dirtyrate_stat(); + rcu_read_lock(); + initial_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME); + if (record_ramblock_hash_info(&block_dinfo, config, &block_index) < 0) { + goto out; + } + rcu_read_unlock(); + + msec = config.sample_period_seconds * 1000; + msec = set_sample_page_period(msec, initial_time); + + rcu_read_lock(); + if (compare_page_hash_info(block_dinfo, block_index) < 0) { + goto out; + } + + update_dirtyrate(msec); + +out: + rcu_read_unlock(); + free_ramblock_dirty_info(block_dinfo, block_index + 1); + rcu_unregister_thread(); } void *get_dirtyrate_thread(void *arg)