From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Brown Subject: Re: Choosing and tuning Linux file systems Date: Mon, 26 Jun 2006 17:22:01 +1000 Message-ID: <17567.35609.889263.993708@cse.unsw.edu.au> References: <20060625220052.GX19196@goober> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: linux-fsdevel@vger.kernel.org Return-path: Received: from cantor2.suse.de ([195.135.220.15]:56031 "EHLO mx2.suse.de") by vger.kernel.org with ESMTP id S964858AbWFZHWJ (ORCPT ); Mon, 26 Jun 2006 03:22:09 -0400 To: Valerie Henson In-Reply-To: message from Valerie Henson on Sunday June 25 Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Sunday June 25, val_henson@linux.intel.com wrote: > > Choosing journaling mode in ext3 > - Default is "ordered", usually the right choice > - "journal" is slower but guarantees data is on-disk as well 'journal' doesn't make any extra guarantees over 'ordered'. It can provide lower latencies for synchronous updates as writes don't require as many seeks. I have found that data=journal makes NFS go faster. > - "writeback" is faster but may result in garbage/security leaks in > your file data NeilBrown