Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp156716pxu; Thu, 3 Dec 2020 23:13:29 -0800 (PST) X-Google-Smtp-Source: ABdhPJzq0q5emp+LQk1ThF+gMvGGRt4/Son44angaHwPB9ZkAVVXcuXayHwKVO7GZltRjyiK/cGA X-Received: by 2002:a17:907:20cc:: with SMTP id qq12mr6175106ejb.316.1607066009510; Thu, 03 Dec 2020 23:13:29 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1607066009; cv=none; d=google.com; s=arc-20160816; b=FC0YqKecB6IrntJ/ndRbg17DfjdXpP0hS4YrWmLiyOHJa4k6O07M9oaUc9QBenk2Si ZFwqPQdg2O+5iQcsUVFMdt61aF6uRghRI/Emd3yP70T3JB0WgqMr05VuTJgNiUs9kGvP Bpz2ltFYApYXmqsVImkCPdc3FdI9RjK080XMpeWrVVLBk52U32x9ru4E5ZrALaJepFIu 8QnOXSu9xZcUyy60YNvpT295B304ZmaVofoFKx2PTw8mdk/6blc5A2tYavf0LRG38iZ2 IajTe3Ik8+6IERAwFG+I0z9JJVNQ0h3dEX8eVcDDHOdSZbrgHuPjIj8TPdTt9Kh+nTTD z+qQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :in-reply-to:mime-version:user-agent:date:message-id:from:references :cc:to:subject; bh=oPZ90ldOW6+0NLIoJANTV3C11f96SA7ltJGGjNaRT5Q=; b=CGvQnMzVAyHqfep7kFV/ZSQZrc2hAi39An3V+KbOG5R7IhsUkhJ2Ta+XbEULfbuK7M xUrVzxStgsDF3p8/NpZKk6Z5K4x8ct11lqKATQiSN2LrKGcLISmC9qA0pPr0e3GmGnF/ eWwSu5doqkklPvyY+3Q14CO6ZkbnFwsH3IgEcEuF2eaOAcIjWBWnDIi4Q36Gp7pxqZmz VPG1dkPeXtkQBPAYf7fwXo7o7N0dSh4qIhyo9eItcfF4HcN49wd3Jz3SdAtkwB50ln02 kIaeSunyYi9ExEJUGl+NeuBRjk4pG6FDlPMqvIlX08e4RGDNpJmFugjsF5bV7pdUnQU1 HEWw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id hp17si910335ejc.31.2020.12.03.23.13.06; Thu, 03 Dec 2020 23:13:29 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728589AbgLDHKI (ORCPT + 99 others); Fri, 4 Dec 2020 02:10:08 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:8942 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728206AbgLDHKI (ORCPT ); Fri, 4 Dec 2020 02:10:08 -0500 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4CnP2P1WrBzhlvv; Fri, 4 Dec 2020 15:09:01 +0800 (CST) Received: from [10.136.114.67] (10.136.114.67) by smtp.huawei.com (10.3.19.203) with Microsoft SMTP Server (TLS) id 14.3.487.0; Fri, 4 Dec 2020 15:09:20 +0800 Subject: Re: [f2fs-dev] [PATCH v6] f2fs: compress: support compress level To: Gao Xiang CC: Eric Biggers , , , References: <20201203061715.60447-1-yuchao0@huawei.com> <20201204003119.GA1957051@xiangao.remote.csb> From: Chao Yu Message-ID: Date: Fri, 4 Dec 2020 15:09:20 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20201204003119.GA1957051@xiangao.remote.csb> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.136.114.67] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/12/4 8:31, Gao Xiang wrote: > could make more sense), could you leave some CR numbers about these > algorithms on typical datasets (enwik9, silisia.tar or else.) with 16k > cluster size? Just from a quick test with enwik9 on vm: Original blocks: 244382 lz4 lz4hc-9 compressed blocks 170647 163270 compress ratio 69.8% 66.8% speed 16.4207 s, 60.9 MB/s 26.7299 s, 37.4 MB/s compress ratio = after / before Thanks,