$ perl lliltch.pl big{1,2,3}.txt | cksum
Tokyo Cabinet hash database - start
fixed string length=12, threads=8, maps=32
get properties   :     3.238 secs
pack properties  :     1.624 secs
sort packed data :     0.963 secs
write stdout     :     0.725 secs
total time       :     6.554 secs
    count lines  : 10545600
    count unique : 10367603
2956888413 93308427

$ perl lliltch.pl --threads=16 --maps=64 big{1,2,3}.txt | cksum
Tokyo Cabinet hash database - start
fixed string length=12, threads=16, maps=64
get properties   :     1.814 secs
pack properties  :     0.891 secs
sort packed data :     0.971 secs
write stdout     :     0.384 secs
total time       :     4.064 secs
    count lines  : 10545600
    count unique : 10367603
2956888413 93308427

$ perl lliltch.pl --threads=24 --maps=64 big{1,2,3}.txt | cksum
Tokyo Cabinet hash database - start
fixed string length=12, threads=24, maps=64
get properties   :     1.353 secs
pack properties  :     0.695 secs
sort packed data :     0.963 secs
write stdout     :     0.276 secs
total time       :     3.296 secs
    count lines  : 10545600
    count unique : 10367603
2956888413 93308427

$ perl lliltch.pl --threads=48 --maps=max big{1,2,3}.txt | cksum
Tokyo Cabinet hash database - start
fixed string length=12, threads=48, maps=128
get properties   :     0.817 secs
pack properties  :     0.450 secs
sort packed data :     0.961 secs
write stdout     :     0.210 secs
total time       :     2.446 secs
    count lines  : 10545600
    count unique : 10367603
2956888413 93308427