Requires /bin/time, found on GNU/Linux systems

Running 100x and taking avg time: OMP_NUM_THREADS=1 out/samples
Time using 1 thread: 32.30ms

Running 100x and taking avg time: OMP_NUM_THREADS=2 out/samples
Time using 2 threads: 30.80ms

Running 100x and taking avg time: OMP_NUM_THREADS=4 out/samples
Time for 4 threads: 30.50ms

Running 100x and taking avg time: OMP_NUM_THREADS=8 out/samples
Time using 8 threads: 12.90ms

Running 100x and taking avg time: OMP_NUM_THREADS=16 out/samples
Time using 16 threads: 9.10ms