800 x 100 = 80.000
usr time 62.68 secs 0.28 millis 62.68 secs
8 x 10.000 = 80.000
usr time 1.46 secs 0.30 millis 1.46 secs
4 x 10.000 = 80.000
usr time 1.01 secs 203.00 micros 1.01 secs
2 x 40.000 = 80.000
usr time 743.65 millis 0.27 millis 743.38 millis
1 x 80.000 = 80.000
usr time 725.54 millis 0.22 millis 725.32 millis