stabilize Memory via MXBean - Java java.lang.management

Java examples for java.lang.management:MemoryMXBean

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Description

stabilize Memory via MXBean

Demo Code


//package com.java2s;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;

public class Main {
    public static void stabilizeMemory() {
        MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
        long oldUsed;
        long used;
        long change = Long.MAX_VALUE;
        long oldChange;
        int iterationCount = 0;
        do {//from   w  w  w.  j a  v  a 2 s .c om
            oldChange = change;
            oldUsed = memoryMXBean.getHeapMemoryUsage().getUsed();
            System.gc();
            try {
                Thread.sleep(10);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            used = memoryMXBean.getHeapMemoryUsage().getUsed();
            change = Math.abs(oldUsed - used);
            System.out
                    .println(change + " " + oldChange + " " + used * 0.20);
            iterationCount++;
        } while (change != oldChange && iterationCount < 50);
    }
}

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