On Thu, 2010-01-28 at 22:45 +0000, Mike Bresnahan wrote: > I can understand that I will not get as much performance out of a EC2 instance > as a dedicated server, but I don't understand why top(1) is showing 50% CPU > utilization. One possible cause is lock contention, but I don't know if that explains your problem. Perhaps there's something about the handling of shared memory or semaphores on EC2 that makes it slow enough that it's causing lock contention. You could try testing on a xen instance and see if you have the same problem. Regards, Jeff Davis -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
