Package org.openjdk.jmc.flightrecorder.rules.jdk.memory

Class GcFreedRatioRule

java.lang.Object

org.openjdk.jmc.flightrecorder.rules.AbstractRule

org.openjdk.jmc.flightrecorder.rules.jdk.memory.GcFreedRatioRule

All Implemented Interfaces:

IRule

public class GcFreedRatioRule
extends AbstractRule

Rule that checks how much memory was freed per second, and compares that to the liveset. Calculations are done in time windows. Rule is designed to only require the GCHeapSummary event.

Field Summary

Fields

Modifier and Type	Field	Description
static TypedResult<IQuantity>	AVERAGE_LIVESET
static TypedPreference<IQuantity>	FEW_GCS_LIMIT
static TypedResult<IQuantity>	GC_FREED_PER_SECOND
static TypedResult<IQuantity>	GC_FREED_RATIO
static TypedResult<IRange<IQuantity>>	GC_WINDOW
static TypedResult<IQuantity>	HEAP_SUMMARY_EVENTS
static TypedPreference<IQuantity>	WINDOW_SIZE

Fields inherited from class org.openjdk.jmc.flightrecorder.rules.AbstractRule

evaluationTask

Constructor Summary

Constructors

Constructor	Description
GcFreedRatioRule()

Method Summary

Modifier and Type	Method	Description
protected IResult	getResult(IItemCollection items, IPreferenceValueProvider vp, IResultValueProvider rp)

Methods inherited from class org.openjdk.jmc.flightrecorder.rules.AbstractRule

createEvaluation, getConfigurationAttributes, getId, getName, getRequiredEvents, getResults, getTopic

Methods inherited from class java.lang.Object

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

Field Detail

WINDOW_SIZE

public static final TypedPreference<IQuantity> WINDOW_SIZE

FEW_GCS_LIMIT

public static final TypedPreference<IQuantity> FEW_GCS_LIMIT

HEAP_SUMMARY_EVENTS

public static final TypedResult<IQuantity> HEAP_SUMMARY_EVENTS

GC_FREED_RATIO

public static final TypedResult<IQuantity> GC_FREED_RATIO

GC_FREED_PER_SECOND

public static final TypedResult<IQuantity> GC_FREED_PER_SECOND

GC_WINDOW

public static final TypedResult<IRange<IQuantity>> GC_WINDOW

AVERAGE_LIVESET

public static final TypedResult<IQuantity> AVERAGE_LIVESET

Constructor Detail

GcFreedRatioRule

public GcFreedRatioRule()

Method Detail

getResult

protected IResult getResult(IItemCollection items,
                            IPreferenceValueProvider vp,
                            IResultValueProvider rp)

Specified by:

getResult in class AbstractRule