作者zx33571163 (mm)
看板Grad-ProbAsk
标题[计组]-miss penalty
时间Sun Feb 7 14:29:39 2010
main memory accesses take 70ns and that memory accesses are 36%
of all instructions.
L1:
hit time=0.62ns
miss rate=11.4%
L2:
hit time=3.22ns
miss rate=98%
L1 hit time determines the cycle time
base CPI=1
find total CPI
解答写
1+0.36*(0.114*3.22 + 0.114*0.98*(70/0.62))=5.76
我想问一下上面的3.22不用除0.62吗?
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