$ perl test-cache-lru-with-expires.pl 
Mapping
Starting
Write: 478838.905524077
Read : 726818.987997266
Found: 500000
Mem  : 525479936

$ perl test-cache-mce-with-expires.pl 
Mapping
Starting
Write: 605342.765771411
Read : 994375.492182959
Found: 500000
Mem  : 254980096