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Java Performance Optimization

Core Topics

  • Code profiling techniques
  • Identifying bottlenecks
  • Memory leak detection
  • CPU vs I/O bound optimization
  • Efficient collection usage
  • Avoiding premature optimization

Tools to Learn

  • JProfiler
  • VisualVM
  • YourKit Profiler
  • Java Mission Control

Key Internals to Understand

  • JIT compilation hotspots
  • Inlining and dead code elimination
  • String concatenation optimization
  • Primitive vs wrapper performance

Notes