hw.model: Intel(R) Xeon(R) CPU           E5420  @ 2.50GHz
x newsha512.times
+ oldsha512.times
+--------------------------------------------------------------------------+
|                        +                                                 |
|+       + +            *+ x ++ +xx     x       x  x     + x   x          x|
|        |______________AM___|__________|____A__M_____________|            |
+--------------------------------------------------------------------------+
    N           Min           Max        Median           Avg        Stddev
x  10      5.768787       6.06724      5.912495     5.8951463   0.099630039
+  10       5.62859      5.962911      5.775094     5.7690622   0.091845111
Difference at 95.0% confidence
	-0.126084 +/- 0.0900289
	-2.13878% +/- 1.52717%
	(Student's t, pooled s = 0.0958167)