Issue: Replacement Policy
Understand how to design Translation Lookaside Buffer replacement policies to optimize memory access efficiency. Learn about typical approaches such as least-recently-used and random replacement, and how these impact the TLB hit rate and overall system performance.
We'll cover the following...
We'll cover the following...
As with any cache, and thus also with the TLB, one more issue that we must consider is cache replacement. Specifically, when we are installing a new entry in the TLB, we have to replace an old one, and thus the question: which one to replace?
THE CRUX: HOW TO DESIGN TLB REPLACEMENT POLICY
Which TLB entry should be replaced when we add a new TLB entry? The goal, of course, is to minimize the miss rate (or increase hit ...