Re: Anyone interested in improving postgresql scaling?

2007-04-09 Thread Kris Kennaway
On Tue, Apr 10, 2007 at 12:04:32AM -0400, Kevin Way wrote: > Kris Kennaway wrote: > >If so, then your task is the following: > > > >Make SYSV semaphores less dumb about process wakeups. Currently > >whenever the semaphore state changes, all processes sleeping on the > >semaphore are woken, even if

Re: Anyone interested in improving postgresql scaling?

2007-04-09 Thread Kevin Way
Kris Kennaway wrote: If so, then your task is the following: Make SYSV semaphores less dumb about process wakeups. Currently whenever the semaphore state changes, all processes sleeping on the semaphore are woken, even if we only have released enough resources for one waiting process to claim.

Re: FreeBSD 6.2 on SPARC64/x86 with Promise IDE Controller

2007-04-09 Thread Danny Knaggs
Maybe you're right that nullpt sent me off course. However, thanks for pointing this e-mail to correct person who needs to investigate the issue. Joao Barros wrote: I think nullpt sent you off track when he told you to try freebsd-performance. I believe this is an issue for drivers and/or s

Re: FreeBSD 6.2 on SPARC64/x86 with Promise IDE Controller

2007-04-09 Thread Joao Barros
I think nullpt sent you off track when he told you to try freebsd-performance. I believe this is an issue for drivers and/or sparc (or maybe current) I think I have a TX2 too. I can try it on my Ultra 5 if more testing is required. PS: I'm cc'ing Søren Schmidt, he's the maintainer of most of the