high cpu

Hi. I have as my main media/video player my own (built from source by myself, including all the necessary libraries) mplayer However, one of the problems that I have with it, it's his low relative performance when compared to the system default media player (totem) and with some customized...

Nowadays, I am facing with very annoying situation; somethings hangs up/freeze/locks my pc since it eats my cpu, even I had 5 times small(5-10 seconds periods) freezes while writing this message. I can see it from the CPU monitor but I could not find who is it exaclty? Any help is appreciated ...