https://www.infoq.com InfoQ Performance Articles feed https://www.infoq.com/articles/adaptive-hedged-requests-p99-latency/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=Performance-articles <img src="https://res.infoq.com/articles/adaptive-hedged-requests-p99-latency/en/headerimage/adaptive-hedged-requests-p99-latency-header-1779785816730.jpg"/><p>In fan-out microservice architectures, slow-but-completing requests accumulate across services and drive p99 latency far higher than per-service metrics suggest. This article presents an adaptive hedging mechanism that uses DDSketch for real-time quantile estimation, windowed rotation to handle distribution drift, and a token-bucket budget to prevent load amplification.</p> <i>By Prathamesh Bhope</i> Architecture Distributed Systems Cloud Performance DevOps Development Architecture & Design article Thu, 28 May 2026 09:00:00 GMT https://www.infoq.com/articles/adaptive-hedged-requests-p99-latency/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=Performance-articles Prathamesh Bhope 2026-05-28T09:00:00Z /articles/adaptive-hedged-requests-p99-latency/en