First and the most important part of optimizing a computer program is to find out where to optimize, which portion or which module of the program is running slow or using huge memory.
首先也是最重要的是要找出哪里需要优化，程序的那一部分或者那个模块运行速度慢或者使用大量内存。
While writing a user space program to execute a system call is the "proper" way to do it, when you just want to test a system call module, it's annoying to have to write an additional program first.
当你想去测试一个系统调用模块时，编写一个用户空间的程序来执行一个系统调用是种“正规”的方法。但首先要编写额外的程序，这是恼人的事情。怎样才可以执行一个系统调用而又不用编写用户空间的程序呢？
Online program function (ISP) : offer one online program communication port, can download various protection software module, the first system chart freely, need not disassemble the equipment.
在线编程功能(isp)：提供一个在线编程通讯接口，可自由下载各种保护软件模块、一次系统图，无须拆卸装置。
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