From nobody Thu Sep 19 16:13:36 2024 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=1600237427; cv=none; d=zohomail.com; s=zohoarc; b=MIAJv8AXZ88Dul7CPOEz32QyNRvoxpx6E2bGwLqiwAhTt4tt6YSwotxDM7YwIJ2OqGHq7CiVo+w6wa+Mp9TqtL+5uqPaJcwAdFP8UYaRXLSvfAYE+iXf6qvY+Trx3dD3B4UqWMJ8h1ExLREi8/qDGn9QNtQBEyjWfrzKsMTHJ4Q= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1600237427; 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=qGueZNR0g6L0BRYw6PBCxgx0HoMwoU/vCX69EXx5MSM=; b=dYBZFlz5+MBnhPHIyTfyrKVADB/dXtX2QGhZrgwf14S6M/ED5uGP9gvkwwCdQYC4Gz6I2VQe08cP4qehyKKbssZzlQKbSF1ohUEBFgoARoqCrWePmIJ9XUBEmdizT2rTqBwNlttf/5kUOQ0KhrQuXL6L9kyfG/99bGu1J0meBlE= 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 1600237427351692.6349297464069; Tue, 15 Sep 2020 23:23:47 -0700 (PDT) Received: from localhost ([::1]:39558 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kIQr3-00058d-Qh for importer@patchew.org; Wed, 16 Sep 2020 02:23:45 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58916) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kIQfP-0006uM-1v for qemu-devel@nongnu.org; Wed, 16 Sep 2020 02:11:43 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:37286 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 1kIQfI-0005YB-EK for qemu-devel@nongnu.org; Wed, 16 Sep 2020 02:11:42 -0400 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 2D08EDC2B3C4055D08DC; Wed, 16 Sep 2020 14:11:25 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS409-HUB.china.huawei.com (10.3.19.209) with Microsoft SMTP Server id 14.3.487.0; Wed, 16 Sep 2020 14:11:19 +0800 From: Chuan Zheng To: , , , Subject: [PATCH v10 07/12] migration/dirtyrate: Compare page hash results for recorded sampled page Date: Wed, 16 Sep 2020 14:22:02 +0800 Message-ID: <1600237327-33618-8-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1600237327-33618-1-git-send-email-zhengchuan@huawei.com> References: <1600237327-33618-1-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=45.249.212.32; envelope-from=zhengchuan@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/16 02:11:25 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: zhengchuan@huawei.com, zhang.zhanghailiang@huawei.com, liq3ea@gmail.com, qemu-devel@nongnu.org, xiexiangyou@huawei.com, alex.chen@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" Compare page hash results for recorded sampled page. Signed-off-by: Chuan Zheng Signed-off-by: YanYing Zhuang Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Li Qiang --- migration/dirtyrate.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 63 insertions(+) diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c index 5e6eedf..68561af 100644 --- a/migration/dirtyrate.c +++ b/migration/dirtyrate.c @@ -177,6 +177,69 @@ out: return ret; } =20 +static void calc_page_dirty_rate(struct RamblockDirtyInfo *info) +{ + uint32_t crc; + int i; + + for (i =3D 0; i < info->sample_pages_count; i++) { + crc =3D get_ramblock_vfn_hash(info, info->sample_page_vfn[i]); + if (crc !=3D info->hash_result[i]) { + info->sample_dirty_count++; + } + } +} + +static struct RamblockDirtyInfo * +find_block_matched(RAMBlock *block, int count, + struct RamblockDirtyInfo *infos) +{ + int i; + struct RamblockDirtyInfo *matched; + + for (i =3D 0; i < count; i++) { + if (!strcmp(infos[i].idstr, qemu_ram_get_idstr(block))) { + break; + } + } + + if (i =3D=3D count) { + return NULL; + } + + if (infos[i].ramblock_addr !=3D qemu_ram_get_host_addr(block) || + infos[i].ramblock_pages !=3D + (qemu_ram_get_used_length(block) >> TARGET_PAGE_BITS)) { + return NULL; + } + + matched =3D &infos[i]; + + return matched; +} + +static bool compare_page_hash_info(struct RamblockDirtyInfo *info, + int block_count) +{ + struct RamblockDirtyInfo *block_dinfo =3D NULL; + RAMBlock *block =3D NULL; + + RAMBLOCK_FOREACH_MIGRATABLE(block) { + block_dinfo =3D find_block_matched(block, block_count, info); + if (block_dinfo =3D=3D NULL) { + continue; + } + calc_page_dirty_rate(block_dinfo); + update_dirtyrate_stat(block_dinfo); + } + + if (DirtyStat.total_sample_count =3D=3D 0) { + return false; + } + + return true; +} + static void calculate_dirtyrate(struct DirtyRateConfig config) { /* todo */ --=20 1.8.3.1