Re: [PERFORM] shared_buffers on ubuntu precise

2012-11-30 Thread Mark Kirkwood
On 01/12/12 11:21, Daniel Farina wrote: On Fri, Nov 30, 2012 at 12:38 PM, Bruce Momjian wrote: Or Debian. Not sure what would justify use of Ubuntu as a server, except wanting to have the exact same OS as their personal computers. We have switched from Debian to Ubuntu: there is definitely n

Re: [PERFORM] shared_buffers on ubuntu precise

2012-11-30 Thread Daniel Farina
On Fri, Nov 30, 2012 at 12:38 PM, Bruce Momjian wrote: > Or Debian. Not sure what would justify use of Ubuntu as a server, > except wanting to have the exact same OS as their personal computers. We have switched from Debian to Ubuntu: there is definitely non-zero value in the PPA hosting (althou

Re: [PERFORM] shared_buffers on ubuntu precise

2012-11-30 Thread Shaun Thomas
On 11/30/2012 02:38 PM, Bruce Momjian wrote: Or Debian. Not sure what would justify use of Ubuntu as a server, except wanting to have the exact same OS as their personal computers. Honestly not sure why we went that direction. I'm not in the sysadmin group, though I do work with them pretty

Re: [PERFORM] shared_buffers on ubuntu precise

2012-11-30 Thread Bruce Momjian
On Fri, Nov 30, 2012 at 02:01:45PM -0600, Shaun Thomas wrote: > On 11/30/2012 01:57 PM, Ben Chobot wrote: > > >Hm, this sounds like something we should look into. Before we start > >digging do you have more to share, or did you leave it with the "huh, > >that's weird; this seems to fix it" solutio

Re: [PERFORM] shared_buffers on ubuntu precise

2012-11-30 Thread Shaun Thomas
On 11/30/2012 01:57 PM, Ben Chobot wrote: Hm, this sounds like something we should look into. Before we start digging do you have more to share, or did you leave it with the "huh, that's weird; this seems to fix it" solution? We're still testing. We're still on the -31 kernel. We tried the -33

[PERFORM] shared_buffers on ubuntu precise

2012-11-30 Thread Ben Chobot
On Nov 30, 2012, at 8:06 AM, Shaun Thomas wrote: > I say that because you mentioned you're using Ubuntu 12.04, and we were > having some problems with PG on that platform. With shared_buffers over > 4GB, it starts doing really weird things to the memory subsystem. > Whatever it does causes the ker