Everything you need to know about GraalVM

on YouTube ↗03h 07m

" summary

GraalVM claims a single runtime for JVM languages plus JavaScript, Python, R and Ruby, with concrete numbers: the JIT eliminates boxing and array allocations to turn an Objects.hash microbenchmark from 4x slower on HotSpot to parity on GraalVM Community Edition; the native-image flow produces tiny binaries that start in native image startup 20–50 ms and run Micronaut in ~12–15 MB resident RAM in demos. Trade-offs are explicit: closed‑world AOT needs reflection/resource config (use the native-image tracing agent), and polyglot Node.js/Java interop and VisualVM/debugger support are production-ready.

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" chapters (10)

1. 0:00Start
2. 12:26download the binaries
3. 19:07calculating hash codes
4. 24:49inline the hash method
5. 38:02register allocation
6. 55:45add additional workloads
7. 1:05:52compile your applications ahead of time using the native image utility
8. 1:38:18use the flag trace class initialization
9. 1:57:12apply some load to the applications
10. 2:07:51measure cpu time

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