On Fri, Apr 27, 2007 at 08:10:48AM +0000, Andres Retzlaff wrote:
> Hi Magnus,
> in this case each CPU goes up to 50%, giveing me 50% total usage. I was
> specting as you say 1 query 100% cpu.
> Any ideas?
No. 1 query will only use 100% of *one* CPU, which means 50% total usage.
You need at least one query per CPU to reach full 100% of the whole system.
(Actually, you can get slightly above 50% since the query will run on one
CPU and the OS and autovacuum and bgwriter can run on the other. But it's