Class GCProfiler

java.lang.Object

org.openjdk.jmh.profile.GCProfiler

All Implemented Interfaces:

InternalProfiler, Profiler

public class GCProfiler
extends Object
implements InternalProfiler

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	GCProfiler.HotspotAllocationSnapshot
(package private) static class	GCProfiler.VMSupport	This class encapsulates any platform-specific functionality.

Field Summary

Fields

Modifier and Type	Field	Description
private GCProfiler.HotspotAllocationSnapshot	beforeAllocated
private long	beforeGCCount
private long	beforeGCTime
private long	beforeTime

Constructor Summary

Constructors

Constructor	Description
GCProfiler()

Method Summary

Modifier and Type	Method	Description
Collection<? extends Result>	afterIteration(BenchmarkParams benchmarkParams, IterationParams iterationParams, IterationResult iResult)	Run this code after a benchmark iteration finished
void	beforeIteration(BenchmarkParams benchmarkParams, IterationParams iterationParams)	Run this code before starting the next benchmark iteration.
String	getDescription()	Human-readable one-line description of the profiler.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

beforeTime

private long beforeTime

beforeGCCount

private long beforeGCCount

beforeGCTime

private long beforeGCTime

beforeAllocated

private GCProfiler.HotspotAllocationSnapshot beforeAllocated

Constructor Details

GCProfiler

public GCProfiler()

Method Details

getDescription

public String getDescription()

Description copied from interface: Profiler

Human-readable one-line description of the profiler.

Specified by:

getDescription in interface Profiler

Returns:

description

beforeIteration

public void beforeIteration(BenchmarkParams benchmarkParams,
 IterationParams iterationParams)

Description copied from interface: InternalProfiler

Run this code before starting the next benchmark iteration.

Specified by:

beforeIteration in interface InternalProfiler

Parameters:

benchmarkParams - benchmark parameters used for current launch

iterationParams - iteration parameters used for current launch

afterIteration

public Collection<? extends Result> afterIteration(BenchmarkParams benchmarkParams,
 IterationParams iterationParams,
 IterationResult iResult)

Description copied from interface: InternalProfiler

Run this code after a benchmark iteration finished

Specified by:

afterIteration in interface InternalProfiler

Parameters:

benchmarkParams - benchmark parameters used for current launch

iterationParams - iteration parameters used for current launch

iResult - iteration result

Returns:

profiler results