JVM

• Java Compiler
  • How does a program run on a Virtual Machine?
  • Execution Engine
  • Compile Levels
  • Options
  • De-optimisations
  • Ref
    • Java Compiler Tuning
      • TieredCompilation
        • Disabling Tiered Compilation
        • Compilation Thresholds - 推迟或提早 触发JIT
          • CompileThresholdScaling - 触发JIT系数
      • Compiler threads
        • CompilerThreadPriority
          • 介绍 Linux 进程优先级 Priority 与 Nice 值
            • Difference Between PR or PRI and NI
            • How To Calculate PR or PRI Values
      • Code cache
      • Inspection flag
        • jstat
          • jstat -compiler
          • jstat -printcompilation
        • jcmd
        • PrintCompilation
          • tiered_level
          • deoptimization
        • LogCompilation
        • PrintCodeCache
• JVM RAM
  • Memory parts
  • JVM Parameters
  • Parts detail
    • Metaspace
      • Metaspace default size
      • interned String pool
      • +UseContainerSupport
  • Os view
    • mmap() and ‘commited’ memory
      • java ‘commited’ memory
  • commands
    • RSS 和 committed，reservered memory
    • RSS/PSS
  • Tools
  • -XX:MaxRam
  • Ref
    • metaspace
      • What is metaspace
        • When does Metaspace get allocated?
        • When does Metaspace get released?
        • Not return mem to OS
        • MaxMetaspaceSize, CompressedClassSpaceSize
        • compressed class pointers
• Safe Point
  • reach-safepoint-latency.md
    • Cassandra and MMAP file
    • Re: JVM safepoints, mmap, and slow disks
    • Ref.
  • Ref