[理工] 计组 p.512 练习题

楼主: bobsonlin (billy)   2017-10-10 15:33:35
书籍:张凡计组第二版(上)
题目与解答:
https://i.imgur.com/3LZjgyu.jpg
https://i.imgur.com/Ms4k6ZD.jpg
想问此题的(4)小题的a部分(其实a, b都不会XD,更别说(5),(6)QQ),我看不懂
详解的作法,题目是要问 "percentage of all cycles are entirely spent fetching w
rong-path instructions", 答案的分子6我猜是因为 branches execute in stage = 7,
但分母就看不懂了....
我想我问题的症结点在于不懂 Instructions between branch mispredictions、stall c
ycles 在算什么,跪求解释 orz
谢谢!!
作者: sarsman (DeNT15T♠)   2017-10-10 17:36:00
22038那篇推文p大有解说,可以参考看看~
作者: clonsey1314 (Clonsey)   2017-10-10 18:22:00
您好,之前我有发问过一样的问题(第4小题),给您参考: https://www.ptt.cc/bbs/Grad-ProbAsk/M.1506933567.A.C57.html

Links booklink

Contact Us: admin [ a t ] ucptt.com