I have a fairly large (about 30Gb) PostgreSQL 8.1 database running on Windows 2003 Server. I noticed that CPU utilization on the server is 100% for past few days, and postgres process is taking up most of that CPU (95%-100%). There is only one connection to the database at the time and that one is not doing any queries. I turned off stats collector, and any row stat collectors, and I increased the number of check points since I have been getting the error about check point switches being to frequent. Postgres now uses a bit less CPU (60-90%), which is still a lot considering that no processing is being done. Is there anything else I can do to lower this CPU utilization? Is there a way I can pinpoint exactly what part of postgres is using this CPU? Thanks.
