[opensuse-kernel] Disk transaction performance - Phoronix benchmarking
Hi all. Phoronix has run distribution comparison [1]. I´m just wondering why disk transaction performance has Ubuntu 10.04 faster than openSUSE 11.3 RC1, when both distros uses an ext4 file system. Does openSUSE have enabled any barriers again, as was in openSUSE 11.1? http://www.phoronix.com/scan.php?page=article&item=linux_2010_fiveway&num=1 Thanks. -- S pozdravom / Best regards, Rasto -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org
On Mon, Jun 28, 2010 at 11:40:23AM +0200, Rastislav Krupanský wrote:
Hi all.
Phoronix has run distribution comparison [1]. I´m just wondering why disk transaction performance has Ubuntu 10.04 faster than openSUSE 11.3 RC1, when both distros uses an ext4 file system. Does openSUSE have enabled any barriers again, as was in openSUSE 11.1?
http://www.phoronix.com/scan.php?page=article&item=linux_2010_fiveway&num=1
As was reported on opensuse-factory, the Phoronix benchmarks are almost anything but a reliable indication of anything. The slowdown was the change of the default for data integrity assurance. You can get the speed back by changing the default mount options for your filesystem if you don't care that much about your data (like me, I take speed over data due to my workloads). thanks, greg k-h -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org
2010-06-28 16:57 keltezéssel, Greg KH írta:
On Mon, Jun 28, 2010 at 11:40:23AM +0200, Rastislav Krupanský wrote:
Hi all.
Phoronix has run distribution comparison [1]. I´m just wondering why disk transaction performance has Ubuntu 10.04 faster than openSUSE 11.3 RC1, when both distros uses an ext4 file system. Does openSUSE have enabled any barriers again, as was in openSUSE 11.1?
http://www.phoronix.com/scan.php?page=article&item=linux_2010_fiveway&num=1
As was reported on opensuse-factory, the Phoronix benchmarks are almost anything but a reliable indication of anything. The slowdown was the change of the default for data integrity assurance. You can get the speed back by changing the default mount options for your filesystem if you don't care that much about your data (like me, I take speed over data due to my workloads).
Could you please detail, which mount options to change to achieve better speed? And also, what could be the "side effects"? :) Thanks, bye, CzP -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org
participants (3)
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Greg KH -
Peter Czanik -
Rastislav Krupanský