Deep Queues vs Backpressure: Absorbing Load vs Signaling It Back
Overview Both are strategies for handling load spikes between a fast producer and a slower consumer, but they differ in where the excess work goes. Deep queues buffer the overflow in memory or disk so the producer never has to slow down, while backpressure pushes a signal upstream so the producer itself throttles before the system gets overwhelmed. The choice determines whether your system trades memory and latency for decoupling, or throughput for bounded stability. ...