Problem 618 points]: Consider a memory-system with byte-addressable memory with 32-bit physical addresses. The single-level write-back...
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Problem 618 points]: Consider a memory-system with byte-addressable memory with 32-bit physical addresses. The single-level write-back cache has 32 byte blocks and can store 2 MB of data. a) [4 points] The bus connecting the cache to memory is 4 bytes wide and has one cycle latency (i.e., it takes one cycle to transfer data and/or address over the bus). Memory is interleaved with 8 banks; each has a 20- cycle latency. Compute the miss penalty when a clean cache block is replaced, and when a dirty cache block is replaced. Draw pipeline diagrams to support your answer. b) [4 points] The cache has a hit-time of 2 cycles. For a particular program, the cache suffers a miss-rate of 10%, and 20% of cache blocks replaced are dirty. Compute the average number of cycles per memory access in this program. Show your calculations clearly. Problem 618 points]: Consider a memory-system with byte-addressable memory with 32-bit physical addresses. The single-level write-back cache has 32 byte blocks and can store 2 MB of data. a) [4 points] The bus connecting the cache to memory is 4 bytes wide and has one cycle latency (i.e., it takes one cycle to transfer data and/or address over the bus). Memory is interleaved with 8 banks; each has a 20- cycle latency. Compute the miss penalty when a clean cache block is replaced, and when a dirty cache block is replaced. Draw pipeline diagrams to support your answer. b) [4 points] The cache has a hit-time of 2 cycles. For a particular program, the cache suffers a miss-rate of 10%, and 20% of cache blocks replaced are dirty. Compute the average number of cycles per memory access in this program. Show your calculations clearly.
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a Solution For a clean cache block the miss penalty is 29 cycl... View the full answer
Related Book For
Elementary Statistics
ISBN: 978-0538733502
11th edition
Authors: Robert R. Johnson, Patricia J. Kuby
Posted Date:
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