org.graalvm.compiler.core.common

Interface CompilerProfiler

public interface CompilerProfiler

A profiling service that consumes compilation related events. The Java Flight Recorder (JFR) is an example of such a service that can be exposed via this interface.

Method Summary

Modifier and Type	Method and Description
long	getTicks() Get current value of the profiler's time counter.
void	notifyCompilerInlingEvent(int compileId, ResolvedJavaMethod caller, ResolvedJavaMethod callee, boolean succeeded, String message, int bci) Notifies JFR when the compiler considers inlining callee into caller.
void	notifyCompilerPhaseEvent(int compileId, long startTime, String name, int nestingLevel) Notifies JFR when a compiler phase ends.

Method Detail

getTicks

long getTicks()

Get current value of the profiler's time counter.

Returns:

the number of profile-defined time units that have elapsed

notifyCompilerPhaseEvent

void notifyCompilerPhaseEvent(int compileId,
                              long startTime,
                              String name,
                              int nestingLevel)

Notifies JFR when a compiler phase ends.

Parameters:

compileId - current computation unit id

startTime - when the phase started

name - name of the phase

nestingLevel - how many ancestor phases there are of the phase

notifyCompilerInlingEvent

void notifyCompilerInlingEvent(int compileId,
                               ResolvedJavaMethod caller,
                               ResolvedJavaMethod callee,
                               boolean succeeded,
                               String message,
                               int bci)

Notifies JFR when the compiler considers inlining callee into caller.

Parameters:

compileId - current computation unit id

caller - caller method

callee - callee method considered for inlining into caller

succeeded - true if callee was inlined into caller

message - extra information about inlining decision

bci - byte code index of call site