"Greg Smith" <gsmith@xxxxxxxxxxxxx> writes: > On Thu, 28 Jun 2007, Ho Fat Tsang wrote: > >> I have tuned the checkpoint_timeout to 30 second which is ten times less than >> default and the issue is still reproduced. > > Your problem looks exactly like a pause at every checkpoint, and I'm not > sure what Richard was thinking when he suggested having them more often > would improve things. Having frequent checkpoints is bad for overall performance but should reduce the severity of the checkpoint impact. I interpreted his comment as saying he lowered it just as an experiment to test if it was checkpoint causing the problems not as a permanent measure. -- Gregory Stark EnterpriseDB http://www.enterprisedb.com
