@hrishikeshathalye commented on this pull request. > except RunnerCheckError: - netperf['buffer'] = '' + if(fill_file == '/dev/urandom'): + netperf['buffer'] = '' + else: + # If the custom file is not readable, fail noisily + raise RunnerCheckError("The specified fill file does not exist or is not readable.") Ah yes. That would be more accurate. Edited. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/tohojo/flent/pull/243#discussion_r733296393