Benchmark: timing 1 iterations of DB_File, DBM::Deep, SQLite  3...
 DB_File:2 wallclock secs ( 1.90 usr +  0.15 sys = 2.05 CPU) @  0.49/s 
 DBM::Deep:93 wallclock secs (79.24 usr +  9.42 sys = 88.67 CPU) @ 0.01/s 
 SQLite  3:0 wallclock secs ( 0.04 usr +  0.01 sys = 0.05 CPU) @ 19.61/s