> > Wow! 2.6x faster on 2 cores is good. ;-)
> 
> Isn't that impossible?  Or is the multicore GC better than the single
> threaded one?  (Sorry if this is a stupid or obvious question)

There are so many factors that makes the running time unpredictable that
nothing is surprising any more. Haven't you read this paper [1] about the
length of an environment variable causing a program to be 10% faster or
slower ? :)

[1]: http://www-plan.cs.colorado.edu/diwan/asplos09.pdf