Tom Lane wrote: > Arjen van der Meijden told me that according to the tweakers.net > benchmark, HEAD is noticeably slower than 8.2.4, and I soon confirmed > here that for small SELECT queries issued as separate transactions, > there's a significant difference. I think much of the difference stems > from the fact that we now have stats_row_level ON by default, and so > every transaction sends a stats message that wasn't there by default > in 8.2. When you're doing a few thousand transactions per second > (not hard for small read-only queries) that adds up.
So, did this patch make the performance problem go away? -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support ---------------------------(end of broadcast)--------------------------- TIP 7: You can help support the PostgreSQL project by donating at http://www.postgresql.org/about/donate
