Re: SCHED_ULE should not be the default

2011-12-17 Thread Andrey Chernov
On Sun, Dec 18, 2011 at 05:51:47PM +1100, Ian Smith wrote: > On Sun, 18 Dec 2011 02:37:52 +, Bruce Cran wrote: > > On 13/12/2011 09:00, Andrey Chernov wrote: > > > I observe ULE interactivity slowness even on single core machine (Pentium > > > 4) in very visible places, like 'ps ax' output s

Re: SCHED_ULE should not be the default

2011-12-17 Thread Bruce Cran
On 13/12/2011 09:00, Andrey Chernov wrote: I observe ULE interactivity slowness even on single core machine (Pentium 4) in very visible places, like 'ps ax' output stucks in the middle by ~1 second. When I switch back to SHED_4BSD, all slowness is gone. I'm also seeing problems with ULE on a

Re: PostgreSQL user experience: FreeBSD (ZFS) vs OpenIndiana (ZFS) vs Linux (EXT4)

2011-12-17 Thread Adam Vande More
On Sat, Dec 17, 2011 at 7:26 AM, Martin Matuska wrote: > I would like to share some of our expreience with PostgreSQL on FreeBSD. > It has been a while ago since we had to stop using FreeBSD for our > customer's PostgreSQL servers. > I don't claim any expertise in this area so please take this w

PostgreSQL user experience: FreeBSD (ZFS) vs OpenIndiana (ZFS) vs Linux (EXT4)

2011-12-17 Thread Martin Matuska
Hi everyone, I would like to share some of our expreience with PostgreSQL on FreeBSD. It has been a while ago since we had to stop using FreeBSD for our customer's PostgreSQL servers. PostgreSQL (8.4 and 9.0) was demonstrating slow performance under heavy loads and one day I decided to compare it