PrintCompilation

Synopsis

Symbol	Meaning
b	Blocking compiler
*	Generating a native wrapper
%	On stack replacement
!	Method has exception handlers
s	Synchronized method
n	Native method

bytecode size of the method to compile (does not include the size of inlined methods, because it hasn't been decided yet what to inline in the CompilerBroker)

---   n

this means it's just generating an adapter for a native method, not actually compiling a method

made not entrant

made zombie

TieredCompilation

hotspot/src/share/vm/utilities/globalDefinitions.hpp

// Enumeration to distinguish tiers of compilation
enum CompLevel {
  CompLevel_none              = 0,         // Interpreter
  CompLevel_simple            = 1,         // C1
  CompLevel_limited_profile   = 2,         // C1, invocation & backedge counters
  CompLevel_full_profile      = 3,         // C1, invocation & backedge counters + mdo
  CompLevel_full_optimization = 4,         // C2
}

Links

Moazam Raja

• The PrintCompilation flag and how to read its output, 2004-06-17