2 VMM Outline

It has been seen that the definition of “large” and “small” blocks in the context of VMM is relative. VMM shines where many small usrmem allocations are made. Larger blocks will always return better time space “gearing”, but it is not practical for the programmer to always work with large block memory at a local level. The relative distance between large and small is too great for a required “gearing”. Critical to the “gearing” is the way that VMM manages the three basic requests alloc, realloc, and free.