Arthas 系列[一] Dashboard

介绍

dashboard 作为 arthas 最基础的功能，为我们提供了丰富的客户化界面，简单直观的展示了我们最为关注的常用信息：

• thread: 线程信息
• memory: 内存信息
• runtime: 运行时信息

使用

启动 arthas

$ java -jar arthas-boot.jar
[INFO] arthas-boot version: 3.5.1
[INFO] Found existing java process, please choose one and input the serial number of the process, eg : 1. Then hit ENTER.
* [1]: 168 math-game.jar
1
^[[INFO] arthas home: /root/.arthas/lib/3.5.1/arthas
[INFO] Try to attach process 168
[INFO] Attach process 168 success.
[INFO] arthas-client connect 127.0.0.1 3658
  ,---.  ,------. ,--------.,--.  ,--.  ,---.   ,---.
 /  O  \ |  .--. ''--.  .--'|  '--'  | /  O  \ '   .-'
|  .-.  ||  '--'.'   |  |   |  .--.  ||  .-.  |`.  `-.
|  | |  ||  |\  \    |  |   |  |  |  ||  | |  |.-'    |
`--' `--'`--' '--'   `--'   `--'  `--'`--' `--'`-----'


wiki       https://arthas.aliyun.com/doc
tutorials  https://arthas.aliyun.com/doc/arthas-tutorials.html
version    3.5.1
main_class
pid        168
time       2021-05-27 13:34:53

开启 dashboard

[arthas@168]$ dashboard
## 线程信息
ID  NAME                     GROUP        PRIORIT STATE   %CPU     DELTA_T TIME    INTERRUP DAEMON
-1  C1 CompilerThread0       -            -1      -       0.0      0.000   0:1.274 false    true
-1  C2 CompilerThread0       -            -1      -       0.0      0.000   0:1.228 false    true
23  arthas-NettyHttpTelnetBo system       5       RUNNABL 0.0      0.000   0:0.267 false    true
1   main                     main         5       TIMED_W 0.0      0.000   0:0.220 false    false
-1  VM Periodic Task Thread  -            -1      -       0.0      0.000   0:0.213 false    true
-1  VM Thread                -            -1      -       0.0      0.000   0:0.157 false    true
11  Attach Listener          system       9       RUNNABL 0.0      0.000   0:0.043 false    true
16  arthas-NettyHttpTelnetBo system       5       RUNNABL 0.0      0.000   0:0.039 false    true
28  arthas-NettyHttpTelnetBo system       5       RUNNABL 0.0      0.000   0:0.023 false    true
27  arthas-NettyHttpTelnetBo system       5       RUNNABL 0.0      0.000   0:0.022 false    true
24  arthas-command-execute   system       5       TIMED_W 0.0      0.000   0:0.015 false    true

## 内存信息
Memory               used    total  max    usage  GC
heap                 17M     37M    177M   10.01% gc.copy.count            16
tenured_gen          15M     25M    122M   12.65% gc.copy.time(ms)         86
eden_space           1M      10M    49M    2.58%                           2
survivor_space       1M      1M     6M     16.46% gc.marksweepcompact.time 40
nonheap              28M     32M    -1     87.93% (ms)
codeheap_'non-nmetho 1M      2M     5M     21.84%
ds'

## 运行时信息
Runtime
os.name                                           Linux
os.version                                        4.15.0-70-generic
java.version                                      15-ea

输入Q 或者 Ctrl+C 可以退出 dashboard 命令。

---