def simulate():
exec_times = generate_exec_times(n=7, min_time=10, max_time=100)
system = System(end_time=1000,
exec_times=exec_times,
weight=0.5,
is_priorities=True,
distribution='uniform',
mean=7)
system.process(system.source_processes())
system.run(until=20000)
print('Average queues length: {}'.format(system.avg_queues_len))
print('Average waiting times: {}'.format(system.avg_times()))
print('Standard deviation of queue length: {}'.format(
std(system.avg_queues_len)))
