The comments in thrash.perl mention that it test for memory leaks. And by running it you can see that it does leak memory (perl 5.6.1 and 0.17).
A quick glance at the code show no obvious data storage that could explain it so I am wondering if it is supposed to increase its memory usage? Starting thrash.perl: 30803 gk 50 0 2924K 4124K run - 0:01 6.01% perl 30 seconds later: 30803 gk 64 0 4088K 5180K run - 0:42 77.98% perl 30 seconds later: 30803 gk 63 0 5156K 6060K run - 1:14 84.38% perl And so on..
