hw.model: Intel(R) Xeon(R) CPU           E5620  @ 2.40GHz
x newsha512.times
+ oldsha512.times
+--------------------------------------------------------------------------+
| x                                +                                       |
| x                                +                       +               |
| x x             x   xxx          +x      + +             ++            ++|
||____________A___M_______|         |_______________A______M_______|       |
+--------------------------------------------------------------------------+
    N           Min           Max        Median           Avg        Stddev
x  10      5.249369      5.636544      5.434833     5.3861615    0.14279389
+  10      5.625492      6.071669      5.896222     5.8188498    0.17319157
Difference at 95.0% confidence
	0.432688 +/- 0.149135
	8.03333% +/- 2.76885%
	(Student's t, pooled s = 0.158722)