Day 77: Thread Affinity and Core Pinning – The Unseen Hand of Performance in Financial Cores

In Day 77 of our Distributed Systems series, we stop looking at code and start looking at hardware. Why does a perfectly optimized Java application still experience latency jitter? The answer lies in the Linux scheduler and CPU cache lines.

In this video, we explore:

The Cost of Migration: How context switching and L1/L2 cache misses degrade 100M RPS systems.

Core Pinning in Production: Moving beyond the JVM to command the OS using taskset and sched_setaffinity.

The Financial "Fast Path": Why high-frequency trading and global ledgers require deterministic execution.

Hands-on Demo: Watch us take a CPU-bound Fibonacci worker pool and stabilize its performance profile by pinning it to specific cores.

Видео Day 77: Thread Affinity and Core Pinning – The Unseen Hand of Performance in Financial Cores канала systemdrllp11