First optimization :
EXP (ms) : 0.461538
STD (ms) : 0.230769
MIN (ms) : 0.230769
MAX (ms) : 0.692308
Second optimization :
EXP (ms) : 0.346154
STD (ms) : 0.153846
MIN (ms) : 0.192308
MAX (ms) : 0.500000
