Sorry, I hit ctrl + enter too quickly :) http://www.phoronix.com/scan.php?page=article&item=linux_perf_regressions&num=1
So - don't use the 2.6.32 kernel for production yet :) On Mon, 2010-05-03 at 12:24 +0300, Deyan Tsvetanov wrote: > 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 > > > > > > > > >
