If a memory reference takes 200 ns, how long does a paged memory reference take? Now we add an MMU that imposes an overhead of 20 ns on a hit or a miss. If we assume that 85% of all memory references hit in the MMU TLB, what is the effective Memory Access Time (EMAT)? Explain how the TLB hit rate affects the EMAT.
If a memory reference takes 200 ns, how long does a paged memory reference take? Now we add an MMU that imposes an overhead of 20 ns on a hit or a miss. If we assume that 85% of all memory references hit in the MMU TLB, what is the effective Memory Access Time (EMAT)? Explain how the TLB hit rate affects the EMAT.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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