http://www.phoronix.com/scan.php?page=article&item=ubuntu_lucid_alpha2&num=3
PostgreSQL's performance continues to suffer dramatically under Ubuntu 10.04 LTS and it is not expected that it will change at all for this next Ubuntu release. This major drop in the number of transactions being carried out per second is due to an EXT4 file-system change designed to provide better data safety but with a significant performance penalty. This matter is talked about in Autonomously Finding Performance Regressions In The Linux Kernel. The PostgreSQL performance also suffers in Fedora 13 and any other Linux distributions using the Linux 2.6.32 kernel. Even with Fedora 13 being much earlier into its development cycle and carrying some debugging options by default (along with using SELinux), Fedora 13 Rawhide performed quite closely to Ubuntu 10.04 Alpha 2 in this test. On Mon, 2010-05-03 at 14:37 +0530, Ravindra Mandre wrote: > I am also facing the same problem that Kranti reported above. > I also using Ubuntu 10.04. > > Regards > Ravindra Mandre > > On Mon, May 3, 2010 at 2:17 PM, Jonatan Soto <[email protected]>wrote: > > > I am using Ubuntu 9.10 with ext4 and it works great. > > > > On Mon, May 3, 2010 at 10:42 AM, Kranti Agrawal <[email protected] > > >wrote: > > > > > Hi, > > > > > > I installed Ubuntu 10.04 LTS yesterday with ext4 as the default file > > > system. > > > The seed data load is very very slow. It takes around 30 mins to load. > > > In ubuntu 8.04 LTS, it took around 2-3 mins max. > > > Is it due to the ext4 file system? or anything else? > > > > > > Regards, > > > Kranti Agrawal > > > Student, IIIT Bangalore > > > krantiagrawal.blogspot.com > > > > >
