'Return benchmark run statistics as tuple:
(minimum round time,
average round time,
maximum round time)
XXX Currently not used, since the benchmark does test
statistics across all rounds.'

def stat(self):

    runs = len(self.roundtimes)
    if (runs == 0):
        return (0.0, 0.0)
    min_time = min(self.roundtimes)
    total_time = sum(self.roundtimes)
    avg_time = (total_time / float(runs))
    max_time = max(self.roundtimes)
    return (min_time, avg_time, max_time)
