#latency#coordinatedomission#hdrhistogram
88K subscribers • 107 videos on Hallway • Conference channel
Intermediate. Assumes working knowledge.
119K views11 years ago11 recommendations
Systems programmingTools and practicePerformance and optimizationTestingObservability and monitoring
Gil Tene explains common pitfalls in measuring latency, why averages are misleading, and how coordinated omission ruins response time data.
Time is Money. Understanding application responsiveness and latency is critical but good characterization of bad data is useless. Gil Tene discusses some common pitfalls encountered in measuring latency and response time behavior. He introduces how simple, open sourced tools can be used to improve and gain higher confidence in both latency measurement and reporting. Gil Tene AZUL SYSTEMS @giltene Gil Tene is CTO and co-founder of Azul Systems. He has been involved with virtual machine and runtime technologies for the past 25 years. His pet focus areas include system responsiveness and latency behavior. Gil is a frequent speaker at technology conferences worldwide, and an official JavaOne Rock Star. He pioneered the Continuously Concurrent Compacting Collector (C4) that powers Azul's continuously reactive Java platforms. In past lives, he also designed and built operating systems, network switches, firewalls, and laser based mosquito interception systems.What people say. Engineers point to this talk as a life-changing explanation of why averages fail for latency measurement and how to properly use percentiles.
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