$ perl test-cache-parallel-mce.pl 
Mapping
Starting
Write: 228731.311
Read : 143733.302
Found: 600000

$ perl test-cache-parallel-redis.pl 
Mapping
Starting
Write: 159626.727
Read : 164603.402
Found: 600000

$ perl test-redis-tcp.pl 
Mapping
Starting
Write: 57403.6057590594
Read : 60989.7109982115
Found: 600000
Mem  : 270336