From nobody Tue Feb 10 04:17:22 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=1597633805; cv=none; d=zohomail.com; s=zohoarc; b=en2NAFeB1RcSVAmSN2TIBnR48E6ijIWw+nMP5/AEbSqTMOIK8j+P8ZMW7TpGxaEojBYWL6acJvYUZrQ7sRLGCoqfIPWWOCKEZBfn16l2qlLobowuv2jj94wSIJ8e2Q0obxBuQ48aC4N8vmtmoov0CmB3lVmLhIv71+LloGwm3VY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1597633805; 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=cFy1ok3JqAR8grIi0lDi8lAKXBAb6jbOT6LHWtWcELk=; b=JYXxQ5LI6UaEHJleDytfsI4bvyAlgMZSWQbACg4fghibdcbj9/RFuf6pXVoax6wBbVKz7EdRsXOIhIr4viz4Fa2XpcXmQsXKiKZEgwF3/BAw3Rw6I3FymncrQ32PbL9XRE7qE8E+wGkZR5kMuCRVKPt5BBMyFki7HTyqOH+/lws= 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 1597633805741928.5340219245933; Sun, 16 Aug 2020 20:10:05 -0700 (PDT) Received: from localhost ([::1]:60290 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7VXA-0008AP-5C for importer@patchew.org; Sun, 16 Aug 2020 23:10:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37224) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7VWB-0006Cv-BD for qemu-devel@nongnu.org; Sun, 16 Aug 2020 23:09:03 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:4252 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 1k7VW8-0008Lw-6K for qemu-devel@nongnu.org; Sun, 16 Aug 2020 23:09:03 -0400 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id C1136D4C214A9D7FD99A; Mon, 17 Aug 2020 11:08:53 +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; Mon, 17 Aug 2020 11:08:43 +0800 From: Chuan Zheng To: , , Subject: [PATCH v3 03/10] migration/dirtyrate: Add dirtyrate statistics series functions Date: Mon, 17 Aug 2020 11:20:26 +0800 Message-ID: <1597634433-18809-4-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1597634433-18809-1-git-send-email-zhengchuan@huawei.com> References: <1597634433-18809-1-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 = 2020/08/16 23:08:53 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=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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: zhang.zhanghailiang@huawei.com, linyilu@huawei.com, qemu-devel@nongnu.org, alex.chen@huawei.com, ann.zhuangyanying@huawei.com, fangying1@huawei.com 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 to record/update dirtyrate info. Signed-off-by: Chuan Zheng Signed-off-by: YanYing Zhuang --- migration/dirtyrate.c | 30 ++++++++++++++++++++++++++++++ migration/dirtyrate.h | 10 ++++++++++ 2 files changed, 40 insertions(+) diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c index bb0ebe9..8708090 100644 --- a/migration/dirtyrate.c +++ b/migration/dirtyrate.c @@ -24,6 +24,7 @@ #include "dirtyrate.h" =20 CalculatingDirtyRateState CalculatingState =3D CAL_DIRTY_RATE_INIT; +static struct DirtyRateStat dirty_stat; =20 static int dirty_rate_set_state(int new_state) { @@ -40,6 +41,35 @@ static int dirty_rate_set_state(int new_state) return 0; } =20 +static void reset_dirtyrate_stat(void) +{ + dirty_stat.total_dirty_samples =3D 0; + dirty_stat.total_sample_count =3D 0; + dirty_stat.total_block_mem_MB =3D 0; + dirty_stat.dirty_rate =3D 0; +} + +static void update_dirtyrate_stat(struct RamblockDirtyInfo *info) +{ + dirty_stat.total_dirty_samples +=3D info->sample_dirty_count; + dirty_stat.total_sample_count +=3D info->sample_pages_count; + /* size of 4K pages in MB */ + dirty_stat.total_block_mem_MB +=3D info->ramblock_pages / 256; +} + +static void update_dirtyrate(uint64_t msec) +{ + uint64_t dirty_rate; + unsigned int total_dirty_samples =3D dirty_stat.total_dirty_samples; + unsigned int total_sample_count =3D dirty_stat.total_sample_count; + size_t total_block_mem_MB =3D dirty_stat.total_block_mem_MB; + + dirty_rate =3D total_dirty_samples * total_block_mem_MB * + 1000 / (total_sample_count * msec); + + dirty_stat.dirty_rate =3D dirty_rate; +} + static void calculate_dirtyrate(struct DirtyRateConfig config) { /* todo */ diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h index 9650566..af57c80 100644 --- a/migration/dirtyrate.h +++ b/migration/dirtyrate.h @@ -57,6 +57,16 @@ struct RamblockDirtyInfo { uint8_t *hash_result; /* array of hash result for sampled pages */ }; =20 +/* + * Store calculate statistics for each measure. + */ +struct DirtyRateStat { + unsigned int total_dirty_samples; /* total dirty pages for this measur= e */ + unsigned int total_sample_count; /* total sampled pages for this measu= re */ + size_t total_block_mem_MB; /* size of sampled pages in MB */ + int64_t dirty_rate; /* dirty rate for this measure */ +}; + void *get_dirtyrate_thread(void *arg); #endif =20 --=20 1.8.3.1