idea 在vm options处加入-XX:+PrintGCDetails,可打印GC日志. public class ReferenceCountingGC { public Object instance=null; private static final int _1MB=1024*1024; private byte[] bigSize=new byte[2*_1MB]; public static void testGC(){ ReferenceCountingGC objA=ne
//java 开发环境,使用HotSpot的虚拟机,64位,windows 开发环境 Java HotSpot(TM) 64-Bit Server VM (25.151-b12) for windows-amd64 JRE (1.8.0_151-b12), built on Sep 5 2017 19:33:46 by "java_re" with MS VC++ 10.0 (VS2010) //初始内存:4k/页,物理内存(8g--本机内存,2g空闲),交换区(9.4g,1.7g空闲