Maximizing performance with GraalVM
summary
GraalVM replaces the JVM JIT and often removes abstractions: a JMH benchmark comparing a hand‑tuned raw hash and an abstracted Objects.hash version shows HotSpot’s abstracted code is ~3x slower but GraalVM equalizes them by eliminating allocations via escape analysis. The native-image tool produces self-contained binaries that start in milliseconds and run at ~15 MB RSS for a simple quotes service; Renaissance suite shows GraalVM Enterprise about 30% faster on modern workloads.
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chapters (28)
- 0:00Introduction
- 0:50About GraalVM
- 6:30Project structure
- 7:34Running general programs
- 8:38How to get started
- 10:10Performance misconceptions
- 10:50No abstractions
- 12:04Demo
- 12:28Small benchmark
- 13:48Abstraction
- 14:08Good
- 17:18Community Edition
- 21:13Escape Analysis
- 22:32Renaissance Benchmark
- 25:31More benchmarks are better
- 26:59Workload optimizations
- 29:38Ahead of time compilation
- 30:13What is performance
- 32:02Jet mode
- 33:02JIT mode
- 33:50Closed world assumption
- 34:46NET
- 35:43Annotation Processor
- 36:34Quotes
- 37:44Startup Test
- 40:29Native images
- 41:07Reduce startup time
- 42:16Languages
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