com.oracle.svm.core.heap

Class ClassHistogramVisitor

java.lang.Object

com.oracle.svm.core.heap.ClassHistogramVisitor

All Implemented Interfaces:

ObjectVisitor

public class ClassHistogramVisitor
extends Object
implements ObjectVisitor

Builds per-class instance count and space usage histograms.

Constructor Summary

Constructors

Constructor and Description
ClassHistogramVisitor()

Method Summary

Modifier and Type	Method and Description
void	epilogue()
void	prologue()
void	reset() Reset the counters of all classes.
protected static void	toLog(Log log, com.oracle.svm.core.heap.ClassHistogramVisitor.HistogramEntry[] entries)
void	toLogByCount(Log log, long minimum) Log all the entries, sorted by instance count.
void	toLogByName(Log log, long minimum) Log all the entries, sorted by class name.
void	toLogBySpace(Log log, long minimum, boolean increasing) Log all the entries, sorted by increasing or decreasing occupied space.
boolean	visitObject(Object o) Visit an Object.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oracle.svm.core.heap.ObjectVisitor

visitObjectInline

Constructor Detail

ClassHistogramVisitor

public ClassHistogramVisitor()

Method Detail

visitObject

public boolean visitObject(Object o)

Description copied from interface: ObjectVisitor

Visit an Object.

Specified by:

visitObject in interface ObjectVisitor

Parameters:

o - The Object to be visited.

Returns:

true if visiting should continue, false if visiting should stop.

prologue

public void prologue()

epilogue

public void epilogue()

reset

public void reset()

Reset the counters of all classes.

toLogByName

public void toLogByName(Log log,
                        long minimum)

Log all the entries, sorted by class name.

toLogByCount

public void toLogByCount(Log log,
                         long minimum)

Log all the entries, sorted by instance count.

toLogBySpace

public void toLogBySpace(Log log,
                         long minimum,
                         boolean increasing)

Log all the entries, sorted by increasing or decreasing occupied space.

toLog

protected static void toLog(Log log,
                            com.oracle.svm.core.heap.ClassHistogramVisitor.HistogramEntry[] entries)