~/mp3tools 12:46:27% perl tagbench.pl Perlcast_Interview_001_brian_foy.mp3 
Benchmark: timing 10000 iterations of autotag, info, manualtag...
   autotag: 269 wallclock secs (66.60 usr 70.78 sys +  8.18 cusr 56.58 csys = 202.14 CPU) @ 72.79/s (n=10000)
      info: 12 wallclock secs ( 8.44 usr +  1.06 sys =  9.50 CPU) @ 1052.63/s (n=10000)
 manualtag: 202 wallclock secs (25.07 usr 65.54 sys +  8.18 cusr 56.49 csys = 155.28 CPU) @ 110.36/s (n=10000)