Example usage for java.lang.management MemoryPoolMXBean getCollectionUsage

Introduction

In this page you can find the example usage for java.lang.management MemoryPoolMXBean getCollectionUsage.

Prototype

public MemoryUsage getCollectionUsage();

Source Link

Document

Returns the memory usage after the Java virtual machine most recently expended effort in recycling unused objects in this memory pool.

Usage

From source file:io.ecarf.core.utils.Utils.java

/**
 * Log memory usage//from  w ww.  java  2 s . c  o  m
 * @return
 */
public static long getMemoryUsage() {
    List<MemoryPoolMXBean> memoryPools = new ArrayList<MemoryPoolMXBean>(
            ManagementFactory.getMemoryPoolMXBeans());
    long usedHeapMemoryAfterLastGC = 0;
    for (MemoryPoolMXBean memoryPool : memoryPools) {
        if (memoryPool.getType().equals(MemoryType.HEAP)) {
            MemoryUsage poolCollectionMemoryUsage = memoryPool.getCollectionUsage();
            usedHeapMemoryAfterLastGC += poolCollectionMemoryUsage.getUsed();
        }
    }
    return usedHeapMemoryAfterLastGC;
}

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From source file:org.mifos.framework.ApplicationInitializer.java

private void printMemoryPool() {
    logger.info("Memory MXBean");
    logger.info("Heap Memory Usage: " + ManagementFactory.getMemoryMXBean().getHeapMemoryUsage());
    logger.info("Non-Heap Memory Usage: " + ManagementFactory.getMemoryMXBean().getNonHeapMemoryUsage());

    logger.info("-----Memory Pool MXBeans------");

    Iterator<MemoryPoolMXBean> iter = ManagementFactory.getMemoryPoolMXBeans().iterator();

    while (iter.hasNext()) {
        MemoryPoolMXBean item = iter.next();

        logger.info("Name: " + item.getName());
        logger.info("Type: " + item.getType());
        logger.info("Usage: " + item.getUsage());
        logger.info("Peak Usage: " + item.getPeakUsage());
        logger.info("Collection Usage: " + item.getCollectionUsage());
        logger.info("+++++++++++++++++++");
    }//from  w w w.  j  av  a  2  s .c o  m
}

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