Presentation on GraalVM. It provides a quick introduction, explaining the what, why and how of the GraalVM capabilities. Presentation includes demo of GraalVM features through simple sample codes. Code used in the demo can be downloaded from https://github.com/ashokkumarta/graalvm-samples.

1. A quick introduction to GraalVM
The what, why and how of GraalVM Capabilities
Ashokkumar T.A | 15-Mar-2021

2. What is GraalVM
❖ It is a JavaVM and JDK
❖ Developed at Oracle labs & open sourced
❖ Community & Enterprise editions
❖ Source code at https://github.com/oracle/graal
❖ Production ready version 19, released in Nov-2019. Latest version 21
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3. Why GraalVM
❖ A high performance runtime
❖ Supports multiple languages
❖ Polyglot programming
❖ Compiles to native binaries
❖ Suitable for micro-services, serverless, cloud native solutions
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4. Architecture
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5. A bit on JVMCI
❖ Traditional JIT compilers – C1 & C2 – Implemented in C++
❖ JIT compiler implementation in Java?
❖ JVMCI – Plugin external Java JIT compiler, written in Java
❖ Introduced in Java 9
❖ Graal is a JIT compiler implemented in Java, GraalVM uses Graal
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6. Truffle framework
❖ Tool to build interpreters for programming languages
❖ Also allows to implement new programming language
❖ Interpreted vs. Compiled
❖ Truffle combines both
❖ Simple interpreter, which is then JIT compiled with GraalVM
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7. Demos
❖ Performance
❖ Polyglot – Executing JavaScript from Java
❖ Access Java objects from JavaScript
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Sample code of the demos at
https://github.com/ashokkumarta/graalvm-samples

8. Questions / Discussion
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9. Thank You
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Feedback and suggestions welcome. Please write to
ashokkumar.ta@gmail.com