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Most memory systems contain both a translation lookaside buffer (TLB) used by the virtual memory system, and a cache memory. Both the cache and the TLB have similar functions: they store main memory data in a faster "cache-like" memory that can be accessed at nearly processor speeds. The question is why do these two separate mechanisms exist when they have such a similar purpose? Why have both a cache and a TLB? Why not just a single "supercache" that would hold both regular memory data as well as frequently used page table entries? a) What is different about these two fast memories? b) How are they used in the memory system? (

Most memory systems contain both a translation lookaside buffer (TLB) used by the virtual memory system, and a cache memory. Both the cache and the TLB have similar functions: they store main memory data in a faster "cache-like" memory that can be accessed at nearly processor speeds. The question is why do these two separate mechanisms exist when they have such a similar purpose? Why have both a cache and a TLB? Why not just a single "supercache" that would hold both regular memory data as well as frequently used page table entries? a) What is different about these two fast memories? b) How are they used in the memory system? (

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Most memory systems contain both a translation lookaside buffer (TLB) used by the virtual memory system, and a cache memory. Both the cache and the TLB have similar functions: they store main memory data in a faster "cache-like" memory that can be accessed at nearly processor speeds. The question is why do these two separate mechanisms exist when they have such a similar purpose? Why have both a cache and a TLB? Why not just a single "supercache" that would hold both regular memory data as well as frequently used page table entries? a) What is different about these two fast memories? b) How are they used in the memory system? (
Transcribed Image Text:Most memory systems contain both a translation lookaside buffer (TLB) used by the virtual memory system, and a cache memory. Both the cache and the TLB have similar functions: they store main memory data in a faster "cache-like" memory that can be accessed at nearly processor speeds. The question is why do these two separate mechanisms exist when they have such a similar purpose? Why have both a cache and a TLB? Why not just a single "supercache" that would hold both regular memory data as well as frequently used page table entries? a) What is different about these two fast memories? b) How are they used in the memory system? (
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