Recording the CPU utilization of the application server machines is necessary in order to understand the impact of the applied load to the applications under test.
为了理解应用的负载对被测试的应用程序的影响，您需要记录应用程序服务器机器的CPU的利用率。
2
Utilization – Similar to server virtualization, utilization of storage devices can be balanced to address over and under utilitization.
利用率——类似于服务端虚拟化，在超负荷或低效率的时候可以平衡存储设备的利用率。
3
Lighter loads do not show much of a difference, because the tuned governors act the same as the default governors for all loads under 20 percent utilization since that is the default down_threshold.