GraalVM An Introduction 

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What is a VM? an efficient, isolated duplicate of the real machine Popek, Gerald J.; Goldberg, Robert P. (1974). "Formal requirements for virtualizable third generation architectures" “ “” 

Java Virtual Machine Class Loader Runtime Data Area Execution Engine JNI Native Mehtod Library Java Scala Kotlin Clojure Loads, links, initialize *.class at runtime Store bytecode, runtime data, native stacks Executes bytecode Interaction with native libs 

GraalVM GraalVM Tuffle JVM Languages (java, kotlin, etc) JS Ruby R LLVM bc JVM Node.JS OracleDB Native Program 

GraalVM: Performance GraalVM Tuffle JVM Languages (java, kotlin, etc) JS Ruby R LLVM bc JVM Node.JS OracleDB Native Program 

GraalVM: Performance • Better JIT • Fast startup • Lower footprint • AOT Compiler 

GraalVM Performance: Demo 

GraalVM: Polyglot GraalVM Tuffle JVM Languages (java, kotlin, etc) JS Ruby R LLVM bc JVM Node.JS OracleDB Native Program 

GraalVM: Polyglot • Pass values between languages • Executes code from other language(s) • No copying or marshalling 

GraalVM Polyglot: How? • Interoperability protocol • Communicates via set of agreed data types and structure • Details: https://chrisseaton.com/rubytruffle/dls15-interop/dls15- interop.pdf 

Polyglot: Demo 

GraalVM: Cross Language Tool GraalVM Tuffle JVM Languages (java, kotlin, etc) JS Ruby R LLVM bc JVM Node.JS OracleDB Native Program 

Cross Lang Tools: Demo 

Code at: https://github.com/bertzzie/graalvm-example Slides at: https://speakerdeck.com/bertzzie/introduction-to-graalvm QA and Closing