Just wanted to tell that I searched the whole net and even this site to find a good answer to my question, I even called Apple, but nobody was willing to tell me what cvmscomp_x86_64 does. I am quite sure that it is not a normal process because when you surch you'll soon find out three things:
1. nobody really knows anything
2. the process is (in these questions) always related with crashes
3. In nearly all the forum threads suddenly someone clothes the topic or will give an answer like: it is normal, believe me, it has something to do with....
I think this is VERY STRANGE.
Does anybody REALLY KNOW SOMETHING? Since I kill the process my mac works much better without crashes.