Interference generators such as Rapita’s RapiDaemons can interfere with each other.
The procedures in Rapita’s MACH178 solution, which utilize RapiDaemons to produce on-target verification evidence, account for this.
During Interference Channel Characterization, we specify the selection of a RapiDaemon that is sensitive to an interference channel to use as a victim as well as aggressive RapiDaemons. Using sensitive and aggressive RapiDaemons together in this way allows measurement of the impact of the interference channel they are designed for. It is possible for aggressive interference generators, including RapiDaemons to interfere with each other. To determine the full interference profile, we specify testing all possible configurations of aggressive RapiDaemons against a victim RapiDaemon.
During Software Characterization, a similar approach is specified, where the combinations of interference channels are considered and all viable permutations of aggressive RapiDaemons are tested.
Detailed guidance on selecting interference generators is available in the MACH178 Foundations white papers Interference Generator Selection and WCET Considerations.