# 性能

性能是一切的基础，没有性能再好的程序也是无用的。这里我们从各个角度（分类）来全面梳理云计算涉及的性能：

* 网络（网络的TCP/IP层）
* 存储
* 操作系统
* Web (网络的应用层)
* 数据库


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