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.
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