From nobody Tue Feb 10 02:45:04 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=1599660655; cv=none; d=zohomail.com; s=zohoarc; b=WmglZ/fyfYvyFaj0IiZYMVDyAO27jfid1ZbLKCdQsaDZze4Llvfi78wtNBdOxHetndc5wjaG/SrZwxKzAnYV6Dfg8R9vdPyhoWQuhdw80rk2aB2zVF3GSY5d4YfPplyKKG1VlQFpDhidrOlGfFlZjn2r68vkXGRkiQJ9lwOQEUI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1599660655; 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=rti+4Qtkf40TMQq24xT/0t8B6KJ6r1P8DS2e4/hsKu8=; b=Q3OcrjrwzHlbcqjIh/py1PNAlDdNwBvumCxkzMlcFoESBCxK2OGZQRY6gVon3M1Ms7tFXOaZY0jfX5WAlt6OWHimyzN/Tca5S9UVdm6NNQWeaPfL5/hdNfGQBMS0zUH5DRD6ZnQYS44DyW9oeT+2Udc8DSF2W2F83KzofNco/zk= 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 1599660655779785.1708638238687; Wed, 9 Sep 2020 07:10:55 -0700 (PDT) Received: from localhost ([::1]:38056 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kG0oI-00051t-0X for importer@patchew.org; Wed, 09 Sep 2020 10:10:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44370) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kG0lL-0000Wc-NI for qemu-devel@nongnu.org; Wed, 09 Sep 2020 10:07:51 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:4726 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 1kG0lF-0001i4-Uk 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 69C7E91BA811AADB6964; 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 22:07:26 +0800 From: Chuan Zheng To: , , , , Subject: [PATCH v7 04/12] migration/dirtyrate: Add dirtyrate statistics series functions Date: Wed, 9 Sep 2020 22:18:08 +0800 Message-ID: <1599661096-127913-5-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" Add dirtyrate statistics functions to record/update dirtyrate info. Signed-off-by: Chuan Zheng Reviewed-by: Dr. David Alan Gilbert --- migration/dirtyrate.c | 32 ++++++++++++++++++++++++++++++++ migration/dirtyrate.h | 12 ++++++++++++ 2 files changed, 44 insertions(+) diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c index 0a3350a..5911ff0 100644 --- a/migration/dirtyrate.c +++ b/migration/dirtyrate.c @@ -23,6 +23,7 @@ #include "dirtyrate.h" =20 static int CalculatingState =3D DIRTY_RATE_STATUS_UNSTARTED; +static struct DirtyRateStat DirtyStat; =20 static int dirtyrate_set_state(int *state, int old_state, int new_state) { @@ -34,6 +35,37 @@ static int dirtyrate_set_state(int *state, int old_state= , int new_state) } } =20 +static void reset_dirtyrate_stat(void) +{ + DirtyStat.total_dirty_samples =3D 0; + DirtyStat.total_sample_count =3D 0; + DirtyStat.total_block_mem_MB =3D 0; + DirtyStat.dirty_rate =3D 0; + DirtyStat.start_time =3D 0; + DirtyStat.calc_time =3D 0; +} + +static void update_dirtyrate_stat(struct RamblockDirtyInfo *info) +{ + DirtyStat.total_dirty_samples +=3D info->sample_dirty_count; + DirtyStat.total_sample_count +=3D info->sample_pages_count; + /* size of total pages in MB */ + DirtyStat.total_block_mem_MB +=3D (info->ramblock_pages * + TARGET_PAGE_SIZE) >> 20; +} + +static void update_dirtyrate(uint64_t msec) +{ + uint64_t dirtyrate; + uint64_t total_dirty_samples =3D DirtyStat.total_dirty_samples; + uint64_t total_sample_count =3D DirtyStat.total_sample_count; + uint64_t total_block_mem_MB =3D DirtyStat.total_block_mem_MB; + + dirtyrate =3D total_dirty_samples * total_block_mem_MB * + 1000 / (total_sample_count * msec); + + DirtyStat.dirty_rate =3D dirtyrate; +} =20 static void calculate_dirtyrate(struct DirtyRateConfig config) { diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h index 479e222..a3ee305 100644 --- a/migration/dirtyrate.h +++ b/migration/dirtyrate.h @@ -42,6 +42,18 @@ struct RamblockDirtyInfo { uint32_t *hash_result; /* array of hash result for sampled pages */ }; =20 +/* + * Store calculation statistics for each measure. + */ +struct DirtyRateStat { + uint64_t total_dirty_samples; /* total dirty sampled page */ + uint64_t total_sample_count; /* total sampled pages */ + uint64_t total_block_mem_MB; /* size of total sampled pages in MB */ + int64_t dirty_rate; /* dirty rate in MB/s */ + int64_t start_time; /* calculation start time in units of second */ + int64_t calc_time; /* time duration of two sampling in units of second= */ +}; + void *get_dirtyrate_thread(void *arg); #endif =20 --=20 1.8.3.1