JVM 参数调优-optimization-jvm.zip

package com.jvm.optimization; import java.util.ArrayList; import java.util.List; /** * Created by Mr.PanYang on 2018/9/4. * <p> * 堆溢出 * <p> * 解决办法:设置堆内存大小 -Xms1m -Xmx10m -XX:+PrintGCDetails -XX:+HeapDumpOnOutOfMemoryError * <p> * 垃圾回收机制原则：内存不足的时候会去回收，如果内存足够，暂时不会回收 */ public class HeapSpace1 { public static void main(String[] args) { // -Xms1m -Xmx10m -XX:+PrintGCDetails -XX:+HeapDumpOnOutOfMemoryError List<Object> listObject = new ArrayList(); for (int i = 0; i < 10; i++) { System.out.println("i:" + i); Byte[] bytes = new Byte[1 * 1024 * 1024]; listObject.add(bytes); } System.out.println("添加成功..."); } }