Performance evaluation of Globe’s location service is becoming necessary in order to help steer development in the right direction. In this paper I put the current implementation of the location service to work and design and setup a number of tests with input data from a mobile phone environment provided by the Stanford University Mobile Activity Traces (SUMATRA). It turns out that the implementation is not ready for performance evaluation of this scale after all, and that no performance evaluation can be done with SUMATRA since too many inconsistencies are to be found in that data.