Real time micro benchmark multi-lingual suite (RTMB) provides a good way to measure the deterministic quality of hardware, an operating system, or a Java Virtual Machine. RTMB consists of benchmarks in C, C++ and Java
A program to draw (and save the results to files) a diagramm that shows the execution time of a programm, which does some floating point calculations, in dependency of the number of used threads.
It saves the result as a gnuplot file and a CSV file.