Arthas 生成火焰图

一 点睛

profiler：用于生成火焰图

二 代码

package chapter03;

import java.util.ArrayList;
import java.util.Random;

/**
* -Xms600m -Xmx600m -XX:SurvivorRatio=8
* 老年代：400m
* 伊甸园：160m
* s0:20m
* s1:20m
*/
public class OOMTest {
    public static void main(String[] args) {
        ArrayList<Picture> list = new ArrayList<>();
        while (true) {
            try {
                Thread.sleep(50);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            list.add(new Picture(new Random().nextInt(100 * 50)));
        }
    }
}

class Picture {
    private byte[] pixels;


    public Picture(int length) {
        this.pixels = new byte[length];
    }
}

三 windows下进入命令界面

D:\ProgramFiles\arthas-packaging-3.5.4-bin>jps
10656 Jps
12736 Launcher
2864
10668 OOMTest

D