Cache me if you can #1: An intro to what caches are and why you need one

Tue, 26 Nov 2024 00:00:00 +0000

My theoretical computer science professor once remarked, “What do IT professionals say when there’s a performance issue? Let’s add another cache! 😄” When dealing with memory systems, it’s common to encounter saturation of throughput or pipeline stalls caused by unpredictable and high read/write latency. Implementing caches can effectively eliminate this bottleneck in most cases.

Unfortunately, the performance of a system is limited by its weakest component. In modern computing, processors have scaled remarkably well, with their performance increasing by approximately 100 times since 1999. However, this improvement does not extend to memory systems. Since 1999:

Cache on Flip The Bit

Cache me if you can #1: An intro to what caches are and why you need one