Rate Threads   Forks
Threads 25.2/s      --    -54%
Forks   54.7/s    118%      --

perl v5.10.1 built for x86_64-linux-thread-multi  (Ubuntu 8.04)


          Rate Threads   Forks
Threads 21.5/s      --    -72%
Forks   77.6/s    261%      --

perl v5.12.0 built for x86_64-linux-thread-multi  (openSUSE 11.1)