Arch Linux 2009.08 was released earlier this week with a new installer, more automatic configuration settings, many core package updates, and other changes to this growingly popular distribution. At the request of some readers, we have carried out some quick benchmarks to get a general understanding of where Arch Linux 2009.08 is performing in comparison to Ubuntu 9.04.
The difference in the sqlite-benchmark is easily explained: kernels >= 2.6.30 default to data=writeback for ext3, but not for ext4. I'm sure if you'd configure Archs ext4-fs with data=writeback as well it would probably end up at least as fast.
Hmm, even though I am an Arch user, I can see that this benchmark is a bit unfair for Ubuntu, since it uses an older fs (ext3) and an older kernel.
It would be better to have made an additional benchmark with an ext4 Ubuntu installation or/and an Ubuntu 9.10 installation (note: Ubuntu 9.10 has though testing packages, like GNOME 2.28 beta which isn't even in [testing] in Arch yet).