> The cpu usage of my firebird process always increases to
> 99.9% ! But there are only two connections .
> What is the possible reason?
>

the transactions look ok - but you'd better tell us what you are doing with
these 2 connections.
Any long running queryies?
does you app lockup?
Are you using events?
You have RH9 - is NPTL being used? do you have the correct build?

Alan