Below is a series of simple database load tests based on our own internal .net application

• PostgreSQL 8.4.7 - Old Poweredge 2900 8 Cores / 16GB
• PostgreSQL 9.0.3 - New Powerdge R910 32 Cores / 128GB
• PostgreSQL 9.0.3 - New Powerdge R910 32 Cores HT (64 Logical CPUs) / 128GB
• PostgreSQL 9.0.3 - New Powerdge R910 8 Cores (Limited to 2 cores/CPU) / 128GB
• PostgreSQL 9.0.3 - New Powerdge R910 16 Cores (Limited to 2 cores/CPU) / 128GB

Each client runs the following:

connect
begin;
select * from heavy_seat_function();
select * from heavy_seat_function();
commit;
disconnect