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Polish README, add time tunnel command showcase.

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Huxing Zhang committed 2018-09-20 10:05:36 +08:00
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README.md
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@@ -257,6 +257,27 @@ Affect(class-cnt:1 , method-cnt:1) cost in 109 ms.
2018-09-20 09:45:42 org.apache.dubbo.demo.provider.DemoServiceImpl sayHello 5 5 0 0.43 0.00%
```
#### Time Tunnel(tt)
Recording method invocation data, so that you can check the method invacation parameters, returned value and thrown exception later. It works as if you could come back and replay the past method invacation via time tunnel.
```
$ tt -t org.apache.dubbo.demo.provider.DemoServiceImpl sayHello
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 75 ms.
INDEX TIMESTAMP COST(ms) IS-RET IS-EXP OBJECT CLASS METHOD
-------------------------------------------------------------------------------------------------------------------------------------
1000 2018-09-20 09:54:10 1.971195 true false 0x55965cca DemoServiceImpl sayHello
1001 2018-09-20 09:54:11 0.215685 true false 0x55965cca DemoServiceImpl sayHello
1002 2018-09-20 09:54:12 0.236303 true false 0x55965cca DemoServiceImpl sayHello
1003 2018-09-20 09:54:13 0.159598 true false 0x55965cca DemoServiceImpl sayHello
1004 2018-09-20 09:54:14 0.201982 true false 0x55965cca DemoServiceImpl sayHello
1005 2018-09-20 09:54:15 0.214205 true false 0x55965cca DemoServiceImpl sayHello
1006 2018-09-20 09:54:16 0.241863 true false 0x55965cca DemoServiceImpl sayHello
1007 2018-09-20 09:54:17 0.305747 true false 0x55965cca DemoServiceImpl sayHello
1008 2018-09-20 09:54:18 0.18468 true false 0x55965cca DemoServiceImpl sayHello
```
#### Classloader
```