1. In a managed code computing environment which implements garbage collection, a system for controlling garbage collection operations, the system comprising: one or more processors; and one or more computer-readable media, wherein the one or more computer-readable media comprise computer-executable instructions that when executed by at least one of the one or more processors cause the system to perform the following: setting up garbage collection to collect objects that are no longer in use in a managed code environment; receiving managed code input specifying a desired quantum within which it is desired that garbage collection not be performed; performing a computing operation to determine the desired quantum can likely be met; and running memory operations within the quantum without running the initialized garbage collection.