From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Pratt Subject: Re: File System Performance results Date: Wed, 29 Oct 2008 16:49:04 -0500 Message-ID: <4908DA50.5010400@austin.ibm.com> References: <48FF87CE.2090502@austin.ibm.com> <1225308408.6448.287.camel@think.oraclecorp.com> <4908C21D.5080302@austin.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org To: Chris Mason Return-path: In-Reply-To: <4908C21D.5080302@austin.ibm.com> Sender: linux-btrfs-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Steven Pratt wrote: > Chris Mason wrote: >> 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. >> > Ok, we'll kick off some new runs. > > Also, just need to push out the data fro odirect random write and mail > server with fsync. > Steve We have completed testing on the random write tests with odirect. Results can be found at: Single disk: http://btrfs.boxacle.net/repository/single-disk/Oct28-odirect-random-writes/Oct28-odirect-random-writes.html Raid: http://btrfs.boxacle.net/repository/raid/Oct28-odirect-random-writes/Oct28-odirect-random-writes.html Also, the changes to the mail server emulation to use fsync on the creates is also complete: Single disk: http://btrfs.boxacle.net/repository/single-disk/Oct28-mail-server-fsync-creates/Oct28-mail-server-fsync-creates.html Raid: http://btrfs.boxacle.net/repository/raid/Oct28-mail-server-fsync-creates/mail-server-fsync-creates.html Steve > >> -chris >> >> > > -- > To unsubscribe from this list: send the line "unsubscribe > linux-fsdevel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html