From: "Aneesh Kumar" Subject: Re: Ext4 devel interlock meeting minutes (April 23, 2007) Date: Mon, 30 Apr 2007 16:36:13 +0530 Message-ID: References: <462D42CA.50509@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-ext4@vger.kernel.org To: "Avantika Mathur" Return-path: Received: from nz-out-0506.google.com ([64.233.162.224]:13365 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752105AbXD3LGO (ORCPT ); Mon, 30 Apr 2007 07:06:14 -0400 Received: by nz-out-0506.google.com with SMTP id o1so1877068nzf for ; Mon, 30 Apr 2007 04:06:14 -0700 (PDT) In-Reply-To: <462D42CA.50509@linux.vnet.ibm.com> Content-Disposition: inline Sender: linux-ext4-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On 4/24/07, Avantika Mathur wrote: > Ext4 Developer Interlock Call: 04/23/2007 Meeting Minutes > > TESTING > - extents testing > - Discussed methods for testing extents on highly fragmented > filesystems. > - Jose will look into possible tests, including perhaps using the > 'aged' option in FFSB > - Ted suggested creating a mountoption that creates a bad block > allocator which it jumps to a new block group every 8 blocks. This > would force a very large number of extents, and may be a good test for > extents. What i am doing for creating a large number of extents is dd if=/dev/zero of=myfile count=10 seek=20 while [ 1 ]; do dd if=/dev/zero of=myfile count=10 seek=$seek; seek=`expr $seek + 20`; done -aneesh