> (the heap never shrinks) Given the rigour in the remainder of the exercise, this surprises me. Figuring out when to call munmap can be a significant part of

> (the heap never shrinks) Given the rigour in the remainder of the exercise, this surprises me. Figuring out when to call munmap can be a significant part of what makes a heap implementation 'high performance' Also, I wonder how common allocators like dl as well as hoard and its other concurrency aware counterparts would perform on this assignment.