ULC Release 3.0 enables the ENVY/Stats profiler for ULC. ENVY/Stats is of course a development tool and should not packaged with applications. ENVY/Stats is a global tool that profiles all active processes in the image. This means that if you want to profile the processing of a specific UIRequest, you are also profiling the SST server process, plus all other running processes. When profiling we recommend that only one UlcContext be active during the profiling. If the request profiled. When a new context is being created in UlcSystem, the system will set that context as the active one in its profiler. This means that only the context that was created last can be profiled. ULC profiling starts with the arrival of a request from the UI (UlcContext>>#sendUIRequest:) and ends when that request has been fully processed. Only one UlcContext will be considered for profiling, and for this context only one request will be profiled at any one time.