From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Mason Subject: Re: File System Performance results Date: Wed, 29 Oct 2008 15:26:48 -0400 Message-ID: <1225308408.6448.287.camel@think.oraclecorp.com> References: <48FF87CE.2090502@austin.ibm.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: linux-fsdevel@vger.kernel.org To: Steven Pratt Return-path: Received: from rgminet01.oracle.com ([148.87.113.118]:43381 "EHLO rgminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753253AbYJ2T0z (ORCPT ); Wed, 29 Oct 2008 15:26:55 -0400 In-Reply-To: <48FF87CE.2090502@austin.ibm.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Wed, 2008-10-22 at 15:06 -0500, Steven Pratt wrote: > We have set up a new page which is intended mainly for tracking the > performance of BTRFS, but in doing so we are testing other filesystems > as well (ext3, ext4, xfs and jfs). Thought some people here might find > the results useful. I think I understand the bad read performance in btrfs. I was forcing a tiny max readahead size. The current git tree has fixes for it, along with a ton of new code. -chris