Throughput Bottleneck
A throughput bottleneck occurs when a specific component of a trading system reaches its maximum capacity, preventing the entire system from processing additional transactions efficiently. This often happens at the matching engine level during extreme spikes in market activity.
When a bottleneck is reached, latency increases significantly, and the system may become unresponsive, leading to order delays or rejections. Identifying and eliminating these bottlenecks is a constant priority for exchange architects who must scale their infrastructure to handle growing volumes.
Solutions include increasing server capacity, optimizing software code, and utilizing distributed systems to share the load. A bottleneck can be the difference between a robust exchange and one that fails under pressure.