de.ipcon.tools

Class MemoryMonitor

java.lang.Object

java.lang.Thread

de.ipcon.tools.MemoryMonitor

All Implemented Interfaces:

java.lang.Runnable

public class MemoryMonitor
extends java.lang.Thread

Background daemon that forces GC cycles to shrink heap footprint on JVMs lacking native dynamic heap uncommitting.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
MemoryMonitor() Initializes the monitor and checks if the active JVM requires explicit GC to release unused heap.

Method Summary

Modifier and Type	Method and Description
void	run() Wakes every 2 minutes (or on demand) and triggers GC until free memory ratios meet target thresholds, lowering targets after 6 failed passes.
void	start() Starts the compaction daemon if enabled for this JVM.
void	suggestGC() Triggers an immediate GC run: delegates to SPU when idle, delegates to G1FootprintHelper if active, or wakes this daemon.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MemoryMonitor

public MemoryMonitor()

Initializes the monitor and checks if the active JVM requires explicit GC to release unused heap.

Method Detail

suggestGC

public void suggestGC()

Triggers an immediate GC run: delegates to SPU when idle, delegates to G1FootprintHelper if active, or wakes this daemon.

start

public void start()

Starts the compaction daemon if enabled for this JVM.

Overrides:

start in class java.lang.Thread

run

public void run()

Wakes every 2 minutes (or on demand) and triggers GC until free memory ratios meet target thresholds, lowering targets after 6 failed passes.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread