glxgears是一个测试你的Linux是否可以顺利运行2D、3D的测试软件。这个程序弹出一个窗口，里面有三个转动的齿轮，屏幕将显示出每五秒钟转动多少栅，所以这是一个合理的性能测试。-Glxgears is a test of your Linux can run smoothly, 2 d and 3 d testing software. This application pop up a window, there are three rotation gear, the screen will show how many gate turn every five seconds, so it s a reasonable performance test.