Why are some classes named with Local suffix?
There is a strong concept of “local” (unsynchronized) and “global” (synchronized) operations. In general, each allocator will acquire sufficient global resources to run unsynchronized for a while. When that local resource is expended, it will call to the (global) space into which it is allocating, and request some number of new pages. If that request is unsuccessful, a GC will be triggered. The codebase attempts to maximize the use of locals and minimize use of globals, since synchronization is expensive.
