On 11/05/11 05:34, Aren Cambre wrote: > Using one thread, the app can do about 111 rows per second, and it's > only exercising 1.5 of 8 CPU cores while doing this. 12,000,000 rows / > 111 rows per second ~= 30 hours. I don't know how I missed that. You ARE maxing out one cpu core, so you're quite right that you need more threads unless you can make your single worker more efficient. Why not just spawn more copies of your program and have them work on ranges of the data, though? Might that not be simpler than juggling threading schemes? -- Craig Ringer -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance