Welcome to The Jungle - A Safari Through The JVM Landscape
Talkat JCON Europe 2023 · on Wednesday, 2023-06-21· at 16:00· Cinema 5, Im Mediapark 1, 50670 Köln, Germany·
summary
Comparison of 20+ OpenJDK-based distributions with concrete differences: 6‑month STS cadence vs LTS (8,11,17,21), patch types (CPU only from Azul, BellSoft and Oracle versus PSU with features), and TCK compliance versus the heavier Aquavit suite (350,000+ real‑world tests). Notable features: jlink custom runtimes, GraalVM native images, Crac checkpoint/restore and Amazon SnapStart for faster startup, Alibaba’s JWarmUp and elastic‑heap hacks, IBM/OpenJ9 lower memory and different JIT; Prime claims faster code via LLVM‑based compiler and ReadyNow warmup.
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chapters (7)
- 0:00Welcome and introduction
- 3:51OpenJDK and distributions
- 10:32Support models and updates
- 17:36Compliance and TCK
- 25:42Costs and licensing changes
- 28:56Performance and JVM optimizations
- 42:19Key takeaways and conclusion
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