Default Values of Power Setting GUIDs?

友谅 强 21 Reputation points
2022-04-15T02:25:35.573+00:00

Hi,

I refer to a performance tuning article in Microsoft Learn website with my Windows Server 2019. This article mentions some strategies for processor performance and power consumption settings, such as:

The processor performance increase and decrease thresholds and policies, regarding this policy setting, can be set by the PERFINCTHRESHOLD and PERFDECTHRESHOLD parameters through the powercfg tool.

Now I have a doubt. After I set up my system with the following command, I found that the performance of my program is not running very well:
Powercfg.exe -setacvalueindex scheme_current sub_processor PERFINCTHRESHOLD 10

Now I want to restore the original default settings, but I don't know what is the default value of the PERFINCTHRESHOLD parameter?

  1. How can I get the default value of PERFINCTHRESHOLD?
  2. How to restore the original default settings?
Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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Accepted answer
  1. Eleven Yu (Shanghai Wicresoft Co,.Ltd.) 10,706 Reputation points Microsoft Vendor
    2022-04-25T03:02:45.407+00:00

    Hi,

    Thank you for posting questions to Microsoft Q&A forum.

    1. PERFINCTHRESHOLD is a hidden setting, so I am not sure its default value. It maybe different depending on the power plans.
      https://learn.microsoft.com/en-us/windows-hardware/customize/power-settings/options-for-perf-state-engine-perfincreasethreshold
    2. You can resore the default settings by below methods:
      Settings > Power & sleep > Additional power settings > choose your power pan and click "Change plan settings" > Restore default settings for this plan
      195935-image.png Run "control.exe powercfg.cpl,,3" > Restore plan defaults
      195965-image.png

    Please akso check the link of Known Windows Power Subsystem GUIDs for your reference.
    https://bitsum.com/known-windows-power-guids/

    Best regards,

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