Jean Bempel Real World JFR Experiences building and deploying a continuous profiler at scale
The JDK Flight Recorder (JFR) was open sourced with JDK 11, and was subsequently backported to JDK 8u262. JFR allows for alwayson production time profiling, with little overhead and with a rich set of data. This talk will discuss things to consider when using JFR to profile hundreds of thousands of JVMs in missioncritical systems all over the world. We will discuss tradeoffs, limits, workarounds, and insights we ve learned as we ve developed the Java profiling capabilities at Datadog.
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