[Bug 567302] Re: Lucid critical performance regression for Apache and PostgreSQL

2010-08-11 Thread Jeremy Foshee
This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested

[Bug 567302] Re: Lucid critical performance regression for Apache and PostgreSQL

2010-05-17 Thread Jeffrey Baker
Sorry but that Moronix benchmark is worthless. You can't get 784 tps using pgbench on a single 7200RPM disk unless your write commit path is broken. The Lucid value of ~ 80 tps is much more reasonable and probably means that something is finally forcing the Moronix test laptop to commit writes

[Bug 567302] Re: Lucid critical performance regression for Apache and PostgreSQL

2010-05-05 Thread Zooko O'Whielacronx
I wonder if this is related to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/543617 . Note that the 2x slowdown for dpkg mentioned in http://www.ubuntu.com/getubuntu/releasenotes/1004#Performance%20regressions%20with%20ext4%20under%20certain%20workloads is a far cry from the 25x (!!!)

[Bug 567302] Re: Lucid critical performance regression for Apache and PostgreSQL

2010-05-03 Thread Roman Friesen
This problem was mentioned in release notes http://www.ubuntu.com/getubuntu/releasenotes/1004#Performance%20regressions%20with%20ext4%20under%20certain%20workloads So, I think, it's not urgent now. But if somebody fill responsible for this issue (me not), please ask phoronix to rerun tests with

[Bug 567302] Re: Lucid critical performance regression for Apache and PostgreSQL

2010-04-27 Thread Jeremy Foshee
Hi Roman, Please be sure to confirm this issue exists with the latest development release of Ubuntu. ISO CD images are available from http://cdimage.ubuntu.com/releases/ . If the issue remains, please run the following command from a Terminal (Applications-Accessories-Terminal). It will