io.jboot.support.metric

类 JvmGcMetrics

java.lang.Object

io.jboot.support.metric.JvmGcMetrics

所有已实现的接口:

com.codahale.metrics.Metric, com.codahale.metrics.MetricSet, AutoCloseable

public class JvmGcMetrics
extends Object
implements com.codahale.metrics.MetricSet, AutoCloseable

Record metrics that report a number of statistics related to garbage collection emanating from the MXBean and also adds information about GC causes.

This provides metrics for OpenJDK garbage collectors: serial, parallel, G1, Shenandoah, ZGC.

作者:

Jon Schneider, Tommy Ludwig

另请参阅:

GarbageCollectorMXBean

嵌套类概要

嵌套类

限定符和类型	类和说明
(专用程序包) static class	JvmGcMetrics.GcGenerationAge Generalization of which parts of the heap are considered "young" or "old" for multiple GC implementations

字段概要

字段

限定符和类型	字段和说明
private static com.jfinal.log.Log	log
private boolean	managementExtensionsPresent
private com.codahale.metrics.MetricRegistry	metricRegistry
private String	nonGenerationalMemoryPool
private List<Runnable>	notificationListenerCleanUpRunnables
private String	oldGenPoolName
private String	youngGenPoolName

构造器概要

构造器

构造器和说明
JvmGcMetrics(com.codahale.metrics.MetricRegistry metricRegistry)

方法概要

限定符和类型	方法和说明
void	close()
private void	countPoolSizeDelta(Map<String,MemoryUsage> before, Map<String,MemoryUsage> after, com.codahale.metrics.Counter counter, AtomicLong previousPoolSize, String poolName)
Map<String,com.codahale.metrics.Metric>	getMetrics()
private static boolean	isManagementExtensionsPresent()

从类继承的方法 java.lang.Object

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

字段详细资料

log

private static final com.jfinal.log.Log log

managementExtensionsPresent

private final boolean managementExtensionsPresent

metricRegistry

private com.codahale.metrics.MetricRegistry metricRegistry

youngGenPoolName

private String youngGenPoolName

oldGenPoolName

private String oldGenPoolName

nonGenerationalMemoryPool

private String nonGenerationalMemoryPool

notificationListenerCleanUpRunnables

private final List<Runnable> notificationListenerCleanUpRunnables

构造器详细资料

JvmGcMetrics

public JvmGcMetrics(com.codahale.metrics.MetricRegistry metricRegistry)

方法详细资料

getMetrics

public Map<String,com.codahale.metrics.Metric> getMetrics()

指定者:

getMetrics 在接口中 com.codahale.metrics.MetricSet

countPoolSizeDelta

private void countPoolSizeDelta(Map<String,MemoryUsage> before,
                                Map<String,MemoryUsage> after,
                                com.codahale.metrics.Counter counter,
                                AtomicLong previousPoolSize,
                                String poolName)

isManagementExtensionsPresent

private static boolean isManagementExtensionsPresent()

close

public void close()

指定者:

close 在接口中 AutoCloseable