"Thomas F.O'Connell" <[EMAIL PROTECTED]> writes: > http://www.sitening.com/pgbench.html
You need to run *many* more transactions than that to get pgbench numbers that aren't mostly noise. In my experience 1000 transactions per client is a rock-bottom minimum to get repeatable numbers; 10000 per is better. Also, in any run where #clients >= scaling factor, what you're measuring is primarily contention to update the "branches" rows. Which is not necessarily a bad thing to check, but it's generally not the most interesting performance domain (if your app is like that you need to redesign the app...) > To me, it looks like basic transactional performance is modestly > improved at 8.0 across a variety of metrics. That's what I would expect --- we usually do some performance work in every release cycle, but there was not a huge amount of it for 8.0. However, these numbers don't prove much either way. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq