15 Sep
2011
15 Sep
'11
3:33 a.m.
On 15/09/11 11:40, Arjen Lentz wrote:
From those filesystems mentioned, extN would tend to be slowest (do set noatime in fstab), and XFS is particularly fast when properly configured. We haven't had any clients use either zfs or btrfs so haven't delved in to that.
Interestingly, this recent comprehensive benchmark of Postgres on differing filesystems, with differing blocksizes, had XFS coming out as around 75% of the speed (so 25% slower?) compared to ext4, when barriers were enabled. http://bit.ly/ri3vWt Curiously, with barriers disabled, the speeds were only a few percent different. In general this guy was getting slower top speeds than I did, but he was using a single drive, whereas I had three striped. -Toby