The Windows PowerCfg tool supports a command-line option that you can use to analyze the idle energy efficiency of your server. When you run the powercfg command with the /energy option, the tool performs a 60-second test to detect potential energy efficiency issues. The tool 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.
Note Windows PowerCfg is not available in operating systems earlier than Windows 7 and Windows Server 2008 R2.
Shortened timer tick rates, drivers that lack power management support, and excessive CPU utilization are a few of the behavioral issues that are detected by the powercfg /energy command. This tool provides a simple way to identify and fix power management issues, 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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