how can I run a Q health- and performance check?
So this will guide me to some more or less serious problems, which should be fixed to run a clean system?
i) BONIC
For distributed computing, BOINC will need fast and clean results and they will provide some "stability tests", otherwise instead of searching for gravitational waves, the PC will only expand the entropy of the universe...
ii) Mathematica
Apple is checking the correctness of their devices with a long integer-calculation of Pi, like all supercomputers does it.
http://www.wolfram.com/mathematica/
Kind Regards