The Buffer Blindspot: How Network Queuing Behavior Collapses Distributed System Performance at Scale
Laboratory benchmarks and synthetic load tests produce clean latency curves because they eliminate the one variable that dominates real production behavior: the network stack under contention. Buffer overflow, TCP backpressure, and packet reordering create cascading performance failures that standard observability tools are structurally unable to capture. This investigation decodes the mechanics of network-induced degradation and examines why the gap between measured and experienced performance