JDK Flight Recorder: Difference between revisions

Revision as of 23:04, 22 January 2019

Revision as of 23:27, 22 January 2019

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{{short description|Production time profiling and diagnostics for OpenJDK}}

'''JDK Flight Recorder''' is an event recorder built into the [[Java virtual machine]]. It can be though of as the software equivalent of a Data Flight Recorder (Black Box) in a commercial aircraft. It captures information about the [[Java virtual machine|JVM]] itself, and the application running in the JVM. There is a wide variety of data captured, for example method profiling, allocation profiling and garbage collection related events. The '''JDK Flight Recorder''' was designed to minimize the [[Observer effect (information technology)|Observer Effect]] in the profiled system, and is meant to be always on in production systems. The technology was open sourced in 2018.

Analysis and visualization of flight recordings are normally done using [[JDK Mission Control]].