Low Latency in High-Load Systems: From Redis Pub/Sub to In-Memory Runtime [ukr]

Low Latency in High-Load Systems: From Redis Pub/Sub to In-Memory Runtime — a Toy That Went Too Far In this talk, we will explore real-world experience in building a low-latency system for cross-exchange operations, where geography is just as important as algorithms. We will discuss why message brokers and classic microservices are not a good fit for HFT (High-Frequency Trading)-like scenarios, how in-memory state combined with regional runtime nodes provides predictable latency, and where the boundary lies between speed and consistency.