On 4 April 2014 11:03, François Beausoleil <francois@xxxxxxxxxxx> wrote: > Hi all! > > Does PG perform that much better on FreeBSD? I have some performance issues on a Ubuntu 12.04 which I'd like to resolve. iowait varies a lot, between 5 and 50%. Does FreeBSD better schedule I/O, which could alleviate some of the issues, or not at all? I have no experience administering FreeBSD, but I'm willing to learn if I'll get some performance enhancements out of the switch. Ubuntu 14.04 LTS is being released in a few days and you might have more success with its newer kernel. And try different schedulers if you haven't already - IIRC switching to deadline resolved one of our load problems. -- Stuart Bishop <stuart@xxxxxxxxxxxxxxxx> http://www.stuartbishop.net/ -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general