On Mon, Feb 18, 2013 at 5:39 PM, Josh Berkus <josh@xxxxxxxxxxxx> wrote: > Scott, > >> So do you have generally slow IO, or is it fsync behavior etc? > > All tests except pgBench show this system as superfast. Bonnie++ and DD > tests are good (200 to 300mb/s), and test_fsync shows 14K/second. > Basically it has no issues until checkpoint kicks in, at which time the > entire system basically halts for the duration of the checkpoint. I assume you've made attemtps at write levelling to reduce impacts of checkpoints etc. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
