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=-7.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 7A83EC433EF for ; Mon, 20 Sep 2021 22:59:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 52F9361184 for ; Mon, 20 Sep 2021 22:59:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234157AbhITXBZ (ORCPT ); Mon, 20 Sep 2021 19:01:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:36258 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232016AbhITW7Y (ORCPT ); Mon, 20 Sep 2021 18:59:24 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id D02C0610A0; Mon, 20 Sep 2021 22:57:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1632178677; bh=t32r/UNDAKqQ2H+2kaeKxyON17il0qBt5QdF2iYLzZU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZhosC+o0YPt67CpA3fw8kRB1RXniPzCZesIhuvdeBL+wpXNT4Sl12rr1CFkS9nmbI d/EANN9Fmgkf2bjeqEoaQ69Lk0rCKQZ7sBupWl+xvyoBVt5iKUeXYX8MqrTGnpXV0l Nm9MHTFMVrSLlj/twxw+Mm+bfJBRjYa3T1MV6IWH9SspASg2DiupGjmxNgTjQnH6jA skrE0+DL6T4dB3xXfOwTYXnZn03oHmUQeZjsPN/O0FKqhUIxTToRusKwhCLiP73ljK xa3YK3ozMBh78upKlfKDacQOxd2u8gi6mrSjGRvMNUaKyEGrP5Apo51dDt9/duXUEb 0aRaK/ac7MQ2w== Date: Mon, 20 Sep 2021 15:57:55 -0700 From: Jaegeuk Kim To: Chao Yu Cc: Daeho Jeong , Daeho Jeong , kernel-team@android.com, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Subject: Re: [f2fs-dev] [PATCH v4] f2fs: introduce fragment allocation mode mount option Message-ID: References: <20210902172404.3517626-1-daeho43@gmail.com> <9f4a2954-e8c9-abc5-5df4-a7cec53433a3@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9f4a2954-e8c9-abc5-5df4-a7cec53433a3@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/12, Chao Yu wrote: > On 2021/9/11 7:13, Jaegeuk Kim wrote: > > Wait. Why do we need to add so many options here? I was expecting to see > > performance difference when getting random segments or random blocks as > > an extreme case. I don't get the point why we need the middle of those cases. > > I guess we can simply the aging test procedure of filesystem by changing a bit > based on this patch. My question was on "fragment:fixed_block". > > See comments in below thread. > > https://lore.kernel.org/lkml/425daf77-8020-26ce-dc9f-019d9a881b78@kernel.org/ > > Thanks,