Windows Server Operating System Performance information

It is very important hardware and software reduces operational costs and directly effect an organization’s. we are in the midst of developing Windows Server 2008 R2, and one of our goals for the product is to build a server operating system that is more power efficient than all of our previous releases. Further more, to help IT administrators better understand server power management and optimize their current Windows Server 2008 installations, we’re releasing a comprehensive white paper called “Power In, Dollars Out: Reducing the Flows in the Data Center” today. The white paper gives detailed explanations of many factors affecting server power efficiency, and contains a list of best practices for optimization.

It is the best mathode is to properly configure Windows Server 2008 and power management features.because it is reduce power consumption, we just turning on PPM features in the operating system can dicrease power consumption by 20%. In Windows Server, this can be done simply by choosing the Balanced or Power Saver power policies (found in the Power Options applet in the Control Panel). PPM is a hard technology, with many more toggles than a simple power switch on/off. We’ve done quite a part of work on the Windows Server processor power management (PPM) algorithms and parameters during R2 development. One of the results of this work was the development of a set of parameters that can boost power efficiency by up to 10% on standard level workloads.

If we don’t need to wait until R2 to deploy these new parameters on our servers. This paragraph will describe PPM technology, we just explain the parameters involved, and show level test results for the parameter changes on a commodity server. It will also give you a handy command-line walkthrough of the powercfg.exe commands necessary to implement these changes in our environment.

The Power management need help from the hardware and the operating system to work carefully. like hardware might support low power states, but the operating system schedule responsibility work and is in the best position to decide when low power states can be leveraged. The Advanced Configuration and Power Interface defines an interface between the operating system and server hardware to be used for power management purposes.


source: http://blogs.technet.com/winserverperformance/archive/2008/12/04/configuring-windows-server-2008-power-parameters-for-increased-power-efficiency.aspx