Thanks to everyone who made suggestions on how to do this. The chosen
solution in the end was:
1. Use perl's malloc
2. Load everthing first and then use fork() with no exec(),
to share heap pages
3. Use a bigger machine (40CPUs, 20Gb memory)
I'm going to do some experiments when the benchmark proper is finished
to try to figure out just how much heap page sharing there is.
Alan Burlison