HALVING THE TIME: HOW UBER EATS REBUILT ITS SEARCH PIPELINE

Summary from the TLDR DevOps newsletter

Uber cut end-to-end Eats search latency in half by removing low-value retrieval paths, separating ranking features from presentation data, and eliminating false dependencies between pipeline stages. Additional gains came from pagination, concurrent rendering, request hedging, compact embeddings, and fixing service-mesh connection bottlenecks.