> others. We are using FireBird 2.13 superserver under Window 2003 (one
> CPU affinity), Every time when some ones try running reports, its

I can't help but wonder: Is this the correct way to run Firebird? Every
source I have ever consulted agrees that forcing a thread to a CPU leads
to _decrease_ of performance for that thread, not _increase_ (because it
prevents the thread from using a different CPU, rather than preventing
other threads from using the selected CPU as many people seem to think).
Maybe removing the affinity would help (a little) to improve performance.

Pepak