In Windows 7 and Windows Server 2008 R2, the Windows PowerCfg utility supports a new command-line option that you can use to analyze the energy efficiency of your server. When you run the powercfg command with the /energy option, the utility performs a 60-second test to detect potential energy efficiency issues. The utility generates a simple HTML report in the current directory. To ensure an accurate analysis, make sure that all local applications are closed before you run the powercfg command.
Shortened timer tick rates, drivers that lack power management support, and excessive CPU utilization are just a few of the behavioral problems that are detected by the powercfg /energy command. This tool provides a simple way to identify and fix power management problems, potentially resulting in significant cost savings in a large datacenter.
For more information on the powercfg /energy option, see "Resources" later in this guide.
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