大家看看这个模型可以用在解决哪类问题上?; q1 C7 m7 A: q4 f" G) R& l! ~# Q
Items serviced according to a priority are subject to "aging in queue" (i.e., other items entering at higher priority may "hog" the server). A typical protocol to address this problem is to have items gain priority by periodically checking aggregate time on queue.