Which memory hierarchy level does caching target? a) L1 cache b) L2 cache c) L3 cache d) Main memory
Understand the Problem
The question is asking about the specific level of memory hierarchy that caching is designed to optimize. It provides options that represent different types of caches and main memory.
Answer
L1, L2, and sometimes L3 caches.
Caching primarily targets L1, L2, and sometimes L3 cache levels in the memory hierarchy.
Answer for screen readers
Caching primarily targets L1, L2, and sometimes L3 cache levels in the memory hierarchy.
More Information
Caching is designed to provide faster data access to the CPU by storing frequently accessed data in faster memory regions close to the processor. This hierarchy allows for more efficient data retrieval than accessing slower main memory.
Tips
A common mistake is to think caching only targets a single level, such as L1. In practice, multiple cache levels (L1, L2, and often L3) work together to optimize performance.
Sources
- CPU cache - Wikipedia - en.wikipedia.org
- What is Cache Memory? Cache Memory in Computers, Explained - techtarget.com
- Multi-level Cache Hierarchies | Advanced Computer Architecture - library.fiveable.me
