[理工] [计组] 内存-AMAT

楼主: jinniw43805 (Mg镁)   2015-07-28 16:43:19
The AMAT has three components: hit time, miss rate ,and miss penalty.For each
of the following cache optimizations,indicate which component of the AMAT
equation is improved.
题目:
(1)
Using a second-level cache
课本解答:
miss penalty
我的想法:
来源:张凡
我是以为second-level cache 是比较关心在减少miss rate 的,还是我解读题目哪里有
误?
感谢各位先进
作者: A4P8T6X9 (残废的名侦探)   2015-07-28 17:58:00
Second level 是在减少惩罚
作者: pathy (pathy)   2015-07-29 14:51:00
second-level cache设计原则确实是减少miss rate
楼主: jinniw43805 (Mg镁)   2015-07-29 14:52:00
那这题的答案是...
作者: pathy (pathy)   2015-07-29 14:52:00
但 USE second-level cache这项技术是为了减少miss penalty
作者: pathy (pathy)   2015-07-29 14:57:00
使用second cache要想解决的事情,和为了达到这个目的,要怎么设计L1,L2 cache,是2件不同的事情
作者: A4P8T6X9 (残废的名侦探)   2015-07-29 16:44:00
second level 的 hit rate 很惨烈唷,不会减少miss rate

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