Caches

Caches are high-speed storage systems that temporarily hold frequently accessed data to improve access time and overall system performance.

Introduction To Caches

Cache memory enhances CPU performance by temporarily storing frequently accessed data.

Cache Hierarchy And Levels

This section explains the various levels of cache in modern processors and their role in optimizing memory access and performance.

Cache Access Principles

Cache access is determined by principles such as locality of reference and cache mapping strategies, which govern how data is stored and retrieved efficiently.

Cache Misses

Cache misses occur when data requested by the CPU is not found in the cache, leading it to fetch the data from slower memory.

Write Policies In Caches

This section explores the two key write policies in cache systems: write-through and write-back.

Cache Coherence And Consistency

Cache coherence is crucial in multi-core processors where different cores may have inconsistent copies of the same memory location.

Inclusive Vs. Exclusive Cache

The section discusses the differences between inclusive and exclusive cache policies in multi-level caching systems, focusing on their implications for data management.

Victim Caches

Victim caches are small, fully associative caches used to store data evicted from higher-level caches, helping to reduce conflict misses.

Cache Optimizations

Cache optimizations enhance performance by reducing cache misses through various strategies.

Cache Design Considerations

This section discusses the key parameters influencing cache design, focusing on balancing speed, cost, and power consumption.