[理工] 計組 MEMORY
想問幾個蠢問題.....................
一.
For a fixed size cache memory ,the larger the line size is the smaller
the tag memory the cache uses.
為什麼上面的敘述是對的?
line size變大，index field變小，offset field變大
那tag field不是應該保持不變嗎= =?
二.
In reducing misses, associativity is more important than capacity.
上面敘述為什麼錯?
三.
A virtual cache access time is always faster than that of a physical cache?
上面敘述為什麼是對的，應該不是always是usual吧
四.
A write-through cache typically requires less bus bandwidth than a
write-back cache.
上面敘述為什麼是錯的
五.
A program is rewritten to require less memory will lead to fewer compulsory
misses.
為什麼不是 fewer capacity misses而是fewer compulsory misses?
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