[2009]某计算机的cache共有16块,采用二路组相联映射方式(即每组2块)。每个主存块大小为32B,按字节编址。主存129号单元所在主存块应装入的cache组号是_____
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[2012]假设某计算机按字编址,cache有4行,cache和主存之间交换的块大小为1个字。若 cache的内容初始为空,采用二路组相联映射方式和LRU替换策略。访问的主存地址依次为0、4、8、2 , 0 ,6、8、6、4、8时,命中cache的次数是______
A. 1
B. 2
C. 3
D. 4
[2015]假定主存地址为32位,按字节编址,主存和cache之间采用直接相联块射方式,主存块 大小为4个字,每个字32位,采用写回的方式,则能存放4K字数据的cache的总容量至少是______位
A. 146K
B. 147K
C. 148K
D. 158K
[2014]采用指令cache与数据cache分离的主要目的是______
A. 降低cache的缺失损失
B. 提高cache的命中率
C. 降低CPU平均访存时间
D. 减少指令流水线资源冲突
Unit 5I.Complete the sentences with the proper form of the given words.uneasy ; work; focus; party; due; wisely1.Try to find a learning method that _____ for you.2.He felt_____ before the final exam.3.He is ___ back soon.4.______ on for four hours at the Christmas party made him very tired.5.It is hard for him to____ after diving for 5 hours without a rest.6.It is important for students to use time____.