Memory fragmentation isn't a big problem these days. The worst case scenario is 50% waste, that's the overhead that a copying garbage collector will incur all t

Memory fragmentation isn't a big problem these days. The worst case scenario is 50% waste, that's the overhead that a copying garbage collector will incur all the time. And strictly speaking, this will do as well or badly on fragmentation as the underlying malloc implementation does as the memory allocation itself is deferred to it.