![]() For example, it could be an instantaneous power draw or an average power draw over some time interval. The exact derivation of the power data value is not specified. The Power counter that shows power in watts appears in the selected counter group. If named instances of power meters appear in the box labeled Instances of Selected Object, your platform supports metering. Open Performance Monitor, select Add Counters, and then locate the Power Meter counter group. ![]() If your server model qualifies for the new Enhanced Power Management qualification in the Windows Hardware Certification Program, it is guaranteed to support the metering and budgeting functionality.Īnother way to check for metering support is to manually look for the counters in Performance Monitor. One way to determine whether your server has support for metering and budgeting is to review the Windows Server Catalog. If your server has the necessary support, you can use the power metering and budgeting features in Windows Server 2016 to view system-level energy consumption by using Performance Monitor. You should establish a baseline power measurement before you tune your server for energy efficiency. The energy efficiency metric allows for more informed decision making than power or performance metrics alone. Similarly, if you tune your server to increase performance by 5 percent, and that results in 10 percent higher energy consumption, the total result might or might not be acceptable for your business goals. In contrast, a goal of 10 percent energy savings across the data center fails to capture the corresponding effects on performance and vice versa. You can use this metric to set practical goals that respect the tradeoff between power and performance. Energy efficiency is the ratio of work that is done to the average power that is required during a specified amount of time. Windows Server default parameter tuning uses Energy Efficiency as a key metric to balance power and performance. For each possible adjustment, consider your power budget and performance goals to determine whether the trade-off is acceptable. ![]() Tuning affects performance and power, sometimes in disproportionate amounts. When you tune your server for energy savings, you must also consider performance. However, the majority of server hardware and workloads should not require administrator power tuning when running Windows Server. This section expands on energy-efficiency tradeoffs to help you make informed decisions if you need to adjust the default power settings on your server. Processor Power Management (PPM) Tuning for the Windows Server Balanced Power Plan describes the workloads used for tuning the default parameters in multiple Windows Server versions, and provides suggestions for customized tunings. Windows Server is optimized for excellent energy efficiency with minimum performance impact across a wide range of customer workloads. When managing servers, it’s important to ensure that they are running as efficiently as possible while meeting the performance needs of their workloads. Energy efficiency is increasingly important in enterprise and data center environments, and it adds another set of tradeoffs to the mix of configuration options.
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