线程池和nio的性能比较？

```
What steps will reproduce the problem?
1.请问client为什么用线程池而不用nio呢？nio的性能是不是更好
些呢? 
2.
3.

What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?


Please provide any additional information below.


```

Original issue reported on code.google.com by `liu0...@gmail.com` on 29 Dec 2009 at 9:32
