From nobody Tue Feb 10 03:55:36 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1599660666; cv=none; d=zohomail.com; s=zohoarc; b=mEFaUdMyM27Oxsb9zARmKGD6X+hIqTE3XajYTY6umUqLwM/R35hbG3c9kd0NtHtw53FoeyitG1CXeUghR3tXiyycttcx2QW2hGfM9cubfhUJ9BJ9Rj5wAYzXhGMXCMUKxaXmr9AUkSD+B9qcKBckmcTHW4L8HgPPQJKjUskp1n8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1599660666; h=Content-Type:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=+OB7PvZ/H4uoxZUD5YRPAVdxRFauI28m2KL58qLWSwo=; b=Y/72quU4+vJGzmYWYoYr9mmb7Nf0jRRflKKOXZsuKCxY2Z+xQWDWEu5vja4yxQSvm0oQpLw/sIYiWeWvK+Bk6Q1rFq7em63SBZCyZSCdopJUU85nPABZSWpQp9FZmMVKG/ZrowmJonQEE1hO7SGObr9U/gVorfMrh4+mtcctReo= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1599660666905410.59281335890785; Wed, 9 Sep 2020 07:11:06 -0700 (PDT) Received: from localhost ([::1]:38494 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kG0oT-0005CT-Ku for importer@patchew.org; Wed, 09 Sep 2020 10:11:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44390) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kG0lM-0000XV-68 for qemu-devel@nongnu.org; Wed, 09 Sep 2020 10:07:52 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:4728 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 1kG0lK-0001ig-51 for qemu-devel@nongnu.org; Wed, 09 Sep 2020 10:07:51 -0400 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 75A3D717A0871B09F79E; Wed, 9 Sep 2020 22:07:37 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.487.0; Wed, 9 Sep 2020 22:07:30 +0800 From: Chuan Zheng To: , , , , Subject: [PATCH v7 10/12] migration/dirtyrate: Implement calculate_dirtyrate() function Date: Wed, 9 Sep 2020 22:18:14 +0800 Message-ID: <1599661096-127913-11-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1599661096-127913-1-git-send-email-zhengchuan@huawei.com> References: <1599661096-127913-1-git-send-email-zhengchuan@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-CFilter-Loop: Reflected Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=45.249.212.191; envelope-from=zhengchuan@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/09 10:07:33 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Implement calculate_dirtyrate() function. Signed-off-by: Chuan Zheng Signed-off-by: YanYing Zhuang Reviewed-by: Dr. David Alan Gilbert --- migration/dirtyrate.c | 45 +++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 43 insertions(+), 2 deletions(-) diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c index 8a30261..2f9ac34 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)); } =20 +static void free_ramblock_dirty_info(struct RamblockDirtyInfo *infos, int = count) +{ + int i; + + if (!infos) { + return; + } + + for (i =3D 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) @@ -300,8 +315,34 @@ static int compare_page_hash_info(struct RamblockDirty= Info *info, =20 static void calculate_dirtyrate(struct DirtyRateConfig config) { - /* todo */ - return; + struct RamblockDirtyInfo *block_dinfo =3D NULL; + int block_index =3D 0; + int64_t msec =3D 0; + int64_t initial_time; + + rcu_register_thread(); + reset_dirtyrate_stat(); + rcu_read_lock(); + initial_time =3D qemu_clock_get_ms(QEMU_CLOCK_REALTIME); + if (record_ramblock_hash_info(&block_dinfo, config, &block_index) < 0)= { + goto out; + } + rcu_read_unlock(); + + msec =3D config.sample_period_seconds * 1000; + msec =3D 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(); } =20 void *get_dirtyrate_thread(void *arg) --=20 1.8.3.1