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Old 12-17-2012, 08:02 PM   #1
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How does a memory system work?

Hey! I have an exercise to solve.

I hope you guys can guide me.

A memory system contains a cache memory, a main memory and a virtual memory.
The cache memory has an access time of 5 nanoseconds and its hit rate is 80%.
The access time for the main memory is 100 nanoseconds and its hit rate is 99.5%.
The access tieme for the virtual memory is 10 milliseconds.

¿What is the average access time for the whole hierachy.
Old 12-17-2012, 08:33 PM   #2
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Old 12-17-2012, 09:23 PM   #3
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Oh, I'm not asking you to resolve my exercise... lol... sorry

I just posted it as a reference, the title of the thread "How does a memory system work?" is what I need to know in order to resolve that exercise...
Old 12-21-2012, 07:14 AM   #4
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Just a hint. Do you know what is indicated with the hit rate?


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