hw.model: Intel(R) Xeon(R) CPU           W3520  @ 2.67GHz
x newsha256.times
+ oldsha256.times
+--------------------------------------------------------------------------+
| xx                                                              ++       |
| xx                                                              +++      |
| xxx     x                                                       +++    ++|
||_A__|                                                          |_MA__|   |
+--------------------------------------------------------------------------+
    N           Min           Max        Median           Avg        Stddev
x  10      7.265013      7.366773      7.272234      7.282682   0.030368881
+  10      8.095271      8.200224      8.106927     8.1239892   0.038130554
Difference at 95.0% confidence
	0.841307 +/- 0.0323868
	11.5522% +/- 0.44471%
	(Student's t, pooled s = 0.0344689)