Am Montag, den 10.05.2010, 09:41 -0700 schrieb Ian Lance Taylor: > If you are interested in how much CPU time the functions require, > using the clock function will be more accurate. However, clock can be > misleading if the functions make any system calls. Okay, I will checkout the clock function. I have rewritten a lot of my code and the problem disappeared. Thanks alot for the help/information. Luca.