23:27:06no-defun-allowedbeach: Oh dear. I was more interested in the graphs about 15 minutes in, where those programs are compacted with great effect. I've heard Ruby memory usage can be greatly reduced with a better allocator, so maybe they just used a bad allocator.
3:18:16beachno-defun-allowed: I am also not sure about Berger's definition of fragmentation. I can see that he cited Robson in order to make his point in that research, but it doesn't seem fair to ignore the research of his mentor. At least, he should have cited it and explained why he is not taking it into account.
3:25:29no-defun-allowedI don't have a definition of fragmentation, other than the observation that using compacting reduced the processes' memory usage.