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2. A computer system contaias a main memory of 32KB. It also has a 1KB cache divided into two-lines/set with &Bytes per line. Assume that the cache is initially empty. The processor fetches words from locations in order: 1024, 1025, 2048, 2049. 20so, 4096, 4097, 1026, 2051, 2052, 4098 in that order. Assume an LRU is used as replacement slgorithm. Calculate the Hit ratio. Show the state of cache at the end. How many blocks are replaced? Estimate the improvement resulting from the use of the cache, if the cache is 10 times faster than RAM. Just comment relative Hit Ratio and execution time if 4-way set associative cache is used instead.

2. A computer system contaias a main memory of 32KB. It also has a 1KB cache divided into two-lines/set with &Bytes per line. Assume that the cache is initially empty. The processor fetches words from locations in order: 1024, 1025, 2048, 2049. 20so, 4096, 4097, 1026, 2051, 2052, 4098 in that order. Assume an LRU is used as replacement slgorithm. Calculate the Hit ratio. Show the state of cache at the end. How many blocks are replaced? Estimate the improvement resulting from the use of the cache, if the cache is 10 times faster than RAM. Just comment relative Hit Ratio and execution time if 4-way set associative cache is used instead.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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2. A computer system contains a main memory of 32XB. It also has a 1KB cache divided into two-lines/set with &Bytes per line. Assume that the cache is initially empty. The processor fetches words from locations in order: 1024, 1025, 2048, 2049, 2050, 4096, 4097, 1026, 2051, 2052, 4098 in that order. Assume an LRU is used as replacement slgorithm. Calculate the Hit rotio. Show the state of cache at the end. How many blocks are replaced? Estimate the improvement resulting from the use of the cache, if the cache is 10 times faster than RAM. Just comment relative Hit Ratio and execution time if 4-way set associative cache is used instead.
Transcribed Image Text:2. A computer system contains a main memory of 32XB. It also has a 1KB cache divided into two-lines/set with &Bytes per line. Assume that the cache is initially empty. The processor fetches words from locations in order: 1024, 1025, 2048, 2049, 2050, 4096, 4097, 1026, 2051, 2052, 4098 in that order. Assume an LRU is used as replacement slgorithm. Calculate the Hit rotio. Show the state of cache at the end. How many blocks are replaced? Estimate the improvement resulting from the use of the cache, if the cache is 10 times faster than RAM. Just comment relative Hit Ratio and execution time if 4-way set associative cache is used instead.
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