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3 cards from this section. Quick, good the night before a test.
What does TLB stand for?
What do you call the cache that speeds up address translation?
What happens during a page fault?
Think about what the system does when a page isn't found in memory.
What is the role of a TLB?
Remember what TLB stands for and its function.
Is a page fault a good thing for system performance?
Consider the time implications of accessing a page from disk.
Imagine a computer with a TLB containing 64 entries. If it experiences a miss rate of 5%, calculate how many misses occur over one billion memory accesses.
Multiply the total accesses by the miss rate percentage.
If the average time for a TLB hit is 1 cycle and for a miss it is 50 cycles (including the lookup on the page table), what is the average access time if the hit rate is 95%?
Use the formula: Average Access Time = (Hit Rate * Hit Time) + (Miss Rate * Miss Time).
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