Question
1.What is the average memory access time for the processor described below? The memory system has a cache access time (including hit detection) of 1
1.What is the average memory access time for the processor described below?
The memory system has a cache access time (including hit detection) of 1 clock cycle
The clock rate is 1 ns
The miss penalty is 25 clock cycles
1% of instructions are not found in the cache
5% of data references are not found in the case
15% of memory accesses are for data
Note: Assume that the read and write penalties are the same; other write stalls can be ignored.
5 ns |
1.2 ns |
1.4 ns 25ns |
2.Order the memory technologies starting with the fasted typical access time as 1 and the slowest typical access time as3 SRAM: DRAM: Magnetic Disk: a 1 b 2 c 3 |
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