identifying bottlenecks

[Marc Brünink <mbruen@smartsoft.de>]

Hi,

I've an application which should be as fast as possible. Therefore I'm 
trying to identify the bottleneck of the system for this special 
program. The application just uses 50 % of the CPU according to top. So 
the bottleneck have to be somewhere else. Is there a program to monitor 
the usage of memory and hard drive throughput while this app is 
running? Some sort of "top" for memory and hard drive?

Thanks
Marc