1. A method performed by one or more processors of a computing device, the method comprising: executing, by the computing device, processes associated with a plurality of active user profiles of the computing device; determining, by the computing device, that an aggregate memory allocation of the plurality of active user profiles exceeds a threshold; responsive to the determining, selecting, by the computing device, an active user profile for which to stop activity; and automatically stopping, by the computing device, the activity associated with the selected active user profile.