A thread missing in L2 cache may occupy most of available resources for a long time,causing other threads run slower than they could or even stall because of lack of resources.

• 如果一个发生L2 cache失效的线程长时间占用共享资源；那么会导致其他线程运行速度减慢；甚至会因为缺少资源而停顿下来；从而降低了SMT处理器的总体性能.