Обсуждение: Potential Problem with PostgeSQL performance on SuSE Linux 9.0
Folks, While debugging a wireless card, I came across this interesting bit: http://portal.suse.com/sdb/en/2003/10/pohletz_desktop_90.html What it indicates is that by default SuSE 9.0 plays with the timeslice values for the Linux kernel in order to provide a "smoother" user experience. In my experience, this can be very bad news for databases under heavy multi-user load. I would suggest that anyone installing a SuSE 9.0 PostgreSQL server remove the Desktop pararmeter in the bootloader configuration. -- Josh Berkus Aglio Database Solutions San Francisco
Along similar lines - have generally obtained better server performance (and stability) from most Linux distros after replacing their supplied kernel with one from kernel.org . regards Mark Josh Berkus wrote: >Folks, > >While debugging a wireless card, I came across this interesting bit: >http://portal.suse.com/sdb/en/2003/10/pohletz_desktop_90.html > >What it indicates is that by default SuSE 9.0 plays with the timeslice values >for the Linux kernel in order to provide a "smoother" user experience. In >my experience, this can be very bad news for databases under heavy multi-user >load. > >I would suggest that anyone installing a SuSE 9.0 PostgreSQL server remove the >Desktop pararmeter in the bootloader configuration. > > >
Mark, > Along similar lines - have generally obtained better server performance > (and stability) from most Linux distros after replacing their supplied > kernel with one from kernel.org . Hmmm.... any anecdotes about replacing Red Hat 2.4.18 to .24? I've been having problems I can't track down on that platform ... -- -Josh Berkus Aglio Database Solutions San Francisco
We use a server at work that is patched RH 7.3 / 2.4.18 with 2.4.21 (or thereabouts its < .24). We have stability issues with Java 1.4 / Tomcat 4.1 but not Pg. It might even be worth building yourself a vanilla 2.4.18 kernel and seeing if that makes any difference... regards Mark Josh Berkus wrote: >Mark, > > > >>Along similar lines - have generally obtained better server performance >>(and stability) from most Linux distros after replacing their supplied >>kernel with one from kernel.org . >> >> > >Hmmm.... any anecdotes about replacing Red Hat 2.4.18 to .24? I've been >having problems I can't track down on that platform ... > > >