Java - Recording Java Flight Recording in Java 9

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Command line to enable Java Flight Recording feature in Java9 to measure JVM performance.

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$ java -XX:+UnlockCommercialFeatures -XX:StartFlightRecording=filename=recording.jfr AppName

Java - JFR create a new configuration from existing one

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Creating a new custom(custom.jfc) JFR configuration from the existing profile.jfc

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Nice example how Javascript can have a unit test with fetch call by mocking.

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Signal will be standard in JavaScript?

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LangChain JS example with Llama cpp for embeddings and prompt.