1. A computer program product for executing a run-time-instrumentation controls emit (RIEMIT) instruction, the RIEMIT instruction executable in either a supervisor state or a lesser-privileged state, the computer program product comprising: a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising: configuring a processor to capture run-time-instrumentation information of a stream of instructions, the stream of instructions comprising the RIEMIT instruction; fetching the RIEMIT instruction; executing, by the processor, the RIEMIT instruction, the executing comprising: determining current run-time-instrumentation controls are configured to permit capturing of run-time-instrumentation information for storing run-time-instrumentation records in a run-time-instrumentation program buffer; and storing an RIEMIT instruction specified value as an emit record of a reporting group in the run-time-instrumentation program buffer.