Systems and methods are provided for managing dynamically allocated storage and processing units. The systems and methods include operations for determining, a usage pattern having a peak usage portion and a low usage portion; reserving a first collection of units on a dynamic unit allocation system during the peak usage portion; detecting a transition from the peak usage portion to the low usage portion; in response to detecting the transition, instructing the dynamic unit allocation system to reduce the first collection of units to reserve a second collection of units corresponding to a second amount of the low usage portion; selecting asynchronous tasks that consume a set of units greater than the second collection of units; and during a period of time that the dynamic unit allocation system is reducing the first collection of units, causing the asynchronous tasks to be executed by the dynamic allocation system.