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Virtual Memory (:watermelon:Allocation of Frames (:snowflake:schemes (:one…
Virtual Memory
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valid-invalid bit
地址映射的时候判断这个bit,如果不在内存就调用过来
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:link:has sth to do with paging
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:cherries:working set
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进程的驻留集
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如进程的驻留集大小固定为2,那么表示存储器能存放的是2个页表项,所以我觉得这里的意思应该是指驻留集窗口的大小
Other considerations
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:three:TLB Reach
ideally, the working set of each process is stored on the TLB
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:five:Program Structure
比如获取数组的元素时,数组内不同元素可能在不同page,因此采用不同的结构会导致page fault次数的不同
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:question:questions
Assume that the probability of page fault is 0.1%, memory access time is 100ns, and the average page fault service time is 25 ms, then the effective access time is
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