On Mon, Jun 25, 2012 at 10:18:57PM +0200, Lucas Nussbaum wrote: > Any ideas? What kind of disks is ullmann running on? We were discussing SSDs > at > some point, but I don't know what actually happened.
It's two SSDs in RAID1 but over (non-shared) virtualization. > Don't get me wrong: the improvement compared to samosa is fantastic. But the > x2 factor compared to my laptop is a bit surprising. If we can tune it > further, > now is probably a good time given it's not in production yet. It's indeed peculiar. Could you share a bit more: 1) about the benchmark: have you run it multiple times to make sure the numbers are right? Is it doing I/O itself (i.e. not postgres)? If it's reading from stabile, that's probably the chokepoint. 2) about your laptop's setup: what PostgreSQL version does it run, what's the postgres tuning settings etc. Additionally, I made a couple of additional optimization changes but that needs a postgres restart -- and since we're there, a reboot would be nice too, since we also added lockd to /etc/modules. Ping me on IRC when you're online so we can sync and do this. Regards, Faidon -- To UNSUBSCRIBE, email to debian-qa-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120626071343.ga22...@tty.gr
