Profiler? CPU Usage per function?

Hi,

I'm trying to analyse my vb.net program which is going to do some
processing on a web server.
I'm using vb.net 1.1

My ISP says he will kill my program if it uses 100% cpu usage for a
more than a few seconds.

I've tried the CLR Profiler and another free profiler, but none show
CPU Usage.

Can anyone give me some advice how I can analyse he functions in my
program for cpu usage?

A suggestion about a free tool would be great?

TIA

Jules.

I like nprof - last time I looked it was free, and it gives function/sub level

I like nprof - last time I looked it was free, and it gives function/sub
level timing information.  I assume you will be running your measurements on
your pc (not on a web server).