#Prefetch

2 posts

Low-Latency Systems Development Topic October 20, 2026 22 min read

A Cache Case Study: Repricing 64 Options per Tick

One tick touches 140 cache lines, and most of the time goes into waiting for them. None of the four steps changes the computation; they change when data arrives, where it lands and who holds it: put the misses in flight together, …

#cpp #cache #mlp #prefetch #clflushopt

Low-Latency Systems Development #14 October 15, 2026 10 min read

Prefetching, Cache Warming, and Double Buffering

There are three ways to get data into cache ahead of time, each with a precondition: prefetching needs you to know the address before the hardware does, warming has to happen on the core that reads the data, and double buffering …

#cpp #prefetch #cache-warming #double-buffering #lock-free