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5. A computer has an L1 and L2 cache, backed up by DRAM which is backed up by virtual memory. The TLB and L1 caches have hit times of .5 ns. The TLB's backup is the page table in DRAM while L1 cache's backup is an L2 cache. The L2 cache has a hit time of 1.5 ns. DRAM has a hit time of 10 ns. Swap space has a hit time of 2,500,000 ns. The hit rates are: TLB: 98.8%, L1: 91.5%, L2: 97.7%, DRAM: 99.9998% and swap space 100%. What is the effective access time?

5. A computer has an L1 and L2 cache, backed up by DRAM which is backed up by virtual memory. The TLB and L1 caches have hit times of .5 ns. The TLB's backup is the page table in DRAM while L1 cache's backup is an L2 cache. The L2 cache has a hit time of 1.5 ns. DRAM has a hit time of 10 ns. Swap space has a hit time of 2,500,000 ns. The hit rates are: TLB: 98.8%, L1: 91.5%, L2: 97.7%, DRAM: 99.9998% and swap space 100%. What is the effective access time?

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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5. A computer has an L1 and L2 cache, backed up by DRAM which is backed up by virtual memory. The TLB and L1 caches have hit times of .5 ns. The TLB's backup is the page table in DRAM while L1 cache's backup is an L2 cache. The L2 cache has a hit time of 1.5 ns. DRAM has a hit time of 10 ns. Swap space has a hit time of 2,500,000 ns. The hit rates are: TLB: 98.8%, L1: 91.5%, L2: 97.7%, DRAM: 99.9998% and swap space 100%. What is the effective access time?
Transcribed Image Text:5. A computer has an L1 and L2 cache, backed up by DRAM which is backed up by virtual memory. The TLB and L1 caches have hit times of .5 ns. The TLB's backup is the page table in DRAM while L1 cache's backup is an L2 cache. The L2 cache has a hit time of 1.5 ns. DRAM has a hit time of 10 ns. Swap space has a hit time of 2,500,000 ns. The hit rates are: TLB: 98.8%, L1: 91.5%, L2: 97.7%, DRAM: 99.9998% and swap space 100%. What is the effective access time?
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