C:\test>\perl22\bin\perl 1176081.pl -WIDTH=10000 -HEIGHT=10000
yr() took 12.478694
buk3() took 8.195635
dave() took 1.876719
eily took 0.888511

C:\test>\perl22\bin\perl 1176081.pl -WIDTH=20000 -HEIGHT=20000
yr() took 18.774189
buk3() took 32.063918
dave() took 5.701784
eily took 2.409520