Linux下用的最多的是MRTG的性能监视，MRTG配置比较简单，MRTG的确是非常好的东东，但我认为它毕竟已经是一套很旧的软件了，其作者在多年前就已经开发了RRDTool代替该软件，现在已经发展得很成熟。既然有更好的选择，为什么我们还要用MRTG呢？

简单的说，rrdtool就是一个强大的绘图的引擎，很多语言都可以调用rrdtool绘图。

-Linux with most of performance monitoring, MRTG MRTG configuration is relatively simple, MRTG is indeed very good stuff, but I think it is, after all, is already a very old software, of years ago, has developed a RRDTool instead of the software, is now very mature. Since there is a better choice, and why we need to use MRTG it? Simple rrdtool is a powerful graphics engine, many languages ??can call rrdtool drawing.