From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F328BC4361B for ; Fri, 4 Dec 2020 07:10:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ABB4C22597 for ; Fri, 4 Dec 2020 07:10:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728606AbgLDHKJ (ORCPT ); Fri, 4 Dec 2020 02:10:09 -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,