Still, my ant run-install-seed takes:
BUILD SUCCESSFUL Total time: 6 minutes 48 seconds real 6m48.884s user 1m37.250s sys 0m8.061s using java version "1.6.0_18" OpenJDK Runtime Environment (IcedTea6 1.8) (6b18-1.8-0ubuntu1) OpenJDK Server VM (build 14.0-b16, mixed mode and BUILD SUCCESSFUL Total time: 7 minutes 29 seconds real 7m29.793s user 2m20.877s sys 0m14.233s using Sun JVM java version "1.6.0_20" Java(TM) SE Runtime Environment (build 1.6.0_20-b02) Java HotSpot(TM) Server VM (build 16.3-b01, mixed mode) So- Sun JVM is slower - wow, what a surprise :) I run ubuntu 10.04 on my laptop with all updates, ext4 fs, 2.6.32-21-generic-pae, 4 gb ram, 7200 rpm sata hdd, Ofbiz trunk branch with all default options, PostgreSQL 8.4.3 on i486-pc-linux-gnu, compiled by GCC gcc-4.4.real (Ubuntu 4.4.3-4ubuntu5) 4.4.3, 32-bit, I haven't timed the run-install procedure before, but i think the time was pretty much the same. It would be interesting to perform the same tests using ubuntu 10.04 and ext3 for example. According to this benchmark http://www.phoronix.com/scan.php?page=article&item=ext4_btrfs_nilfs2&num=3 postgre runs slightly faster on ext3 as compared to ext4, but the difference is not that huge. -- deyan On Mon, 2010-05-03 at 12:32 +0300, Deyan Tsvetanov wrote: > 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 > > > > > > > > > > > > > > >
