From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Dongjun Shin" Subject: Discussion about flash SSD during OLS2007 Date: Mon, 25 Jun 2007 19:40:02 +0900 Message-ID: <7fe698080706250340j5b5b2a4frf8d746974d5c6f64@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: linux-fsdevel@vger.kernel.org Return-path: Received: from py-out-1112.google.com ([64.233.166.181]:36104 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751485AbXFYKkD (ORCPT ); Mon, 25 Jun 2007 06:40:03 -0400 Received: by py-out-1112.google.com with SMTP id u77so1658894pyb for ; Mon, 25 Jun 2007 03:40:03 -0700 (PDT) Content-Disposition: inline Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Hello, I'm working on the Linux optimization for the flash SSD (Solid State Disk), which is becoming more practical nowadays (it's not a pipe dream any more :) During my work, I've found that Linux does not perform so well on SSD. The most important issue, I suspect, is the behavior of the Linux filesystems which are heavily optimized for HDD. Although there are specific filesystems optimized for flash storage (ex. jffs2, logfs), I think they do not scale so well for the larger one like SSD which is of tens or hundreds of GB in size. I'd like to share my experience of using SSD under Linux and to discuss how filesystem can do better. The OLS2007 would be a good chance for the discussion. However, there are already three BOFs for the filesystem topic (ext4, chunkfs and nilfs) I'm not sure if my topic is of interest to the existing BOF or if it is necessary to add another. I'd like to ask if there are people who are interested in discussing this topic at OLS. Regards, -- Dongjun Shin Samsung Electronics