$ perl test-cache-lru.pl 
Mapping
Starting
Write: 629454.032475913
Read : 1121841.10542643
Found: 500000
Mem  : 436666368

$ perl test-cache-mce.pl 
Mapping
Starting
Write: 662199.102659472
Read : 1054666.70019362
Found: 500000
Mem  : 254976000