系统技术非业余研究

新发布的R15B在亮点里面提到：

There is a new GUI tool in the observer application which integrates pman, etop, appmon and tv into one tool. The tool does also contain functions for activating tracing in an easy way.

这个observer完全用wx重新改写过，界面操作速度非常块，整合了几个常用的观察工具，很方便用户，我们来尝鲜下：

$ erl
Erlang R15B (erts-5.9) [source] [smp:2:2] [async-threads:0] [hipe] [kernel-poll:false]

Eshell V5.9  (abort with ^G)
1> observer:start().
ok

上截图：
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