hw.model: Intel(R) Xeon(R) CPU           E5420  @ 2.50GHz
x newsha256.times
+ oldsha256.times
+--------------------------------------------------------------------------+
|   xxxx    xx x     x             x          ++ +++++ x           +  +   +|
||___________M___A_______________|            |_____M___A_________|        |
+--------------------------------------------------------------------------+
    N           Min           Max        Median           Avg        Stddev
x  10      8.248313      8.682605      8.328923     8.3636593    0.13704941
+  10       8.60786      8.846666      8.659691     8.6924975   0.087477329
Difference at 95.0% confidence
	0.328838 +/- 0.108023
	3.93175% +/- 1.29157%
	(Student's t, pooled s = 0.114967)