Issue: Replacement Policy
This lesson highlights some common approaches that we take for the TLB replacement policy.
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 ...