垃圾回收器日志分析工具

Bertha 。 2022-08-29 09:33 133阅读 0赞

# 一 常用的日志分析工具 #

GCViewer、GCEasy、GCHisto、GCLogViewer、Hpjmeter、garbagecat等

# 二 GCViewer #

## 1 github地址 ##

[https://github.com/chewiebug/GCViewer][https_github.com_chewiebug_GCViewer]

## 2 下载地址 ##

[https://github.com/chewiebug/GCViewer/releases][https_github.com_chewiebug_GCViewer_releases]

## 3 样例 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

# 三 GC easy #

## 1 工具位置 ##

[https://gceasy.io/][https_gceasy.io]

## 2 选择日志文件 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1][]

# 四 实战 #

## 1 代码 ##

/**
    * -Xms60m -Xmx60m -XX:+PrintGCDetails -Xloggc:./logs/gc.log
    */
    public class GCLogTest {
        public static void main(String[] args) {
            ArrayList<byte[]> list = new ArrayList<>();
    
            for (int i = 0; i < 500; i++) {
                byte[] arr = new byte[1024 * 100];//100KB
                list.add(arr);
                try {
                    Thread.sleep(500);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }

## 2  运行结果 ##

生成日志文件如下

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 2][]

## 3  GCViewer 分析界面 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 3][]

## 4 GC easy 分析界面 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 4][]

[https_github.com_chewiebug_GCViewer]: https://github.com/chewiebug/GCViewer
[https_github.com_chewiebug_GCViewer_releases]: https://github.com/chewiebug/GCViewer/releases
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20220829/ed2576d16de449c9bb5135404971d664.png
[https_gceasy.io]: https://gceasy.io/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1]: /images/20220829/6eb6c35ff32f421b8c16eb7efa641125.png
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 4]: /images/20220829/d4bd3a4d5c6f4ed1b0f70b5cc2c6cd97.png