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Core Parking is a new feature that dynamically selects a set of processors so that they remain inactive and do not execute threads based on power policy and current usage. This reduces energy consumption and therefore heat and electricity consumption. Under Windows, we usually have to manually edit registry entries to enable or disable this feature, and this requires a restart.
The state of each parked kernel can be observed in the resource monitor under the CPU tab on the right.
If you are using a new Intel multi-core processor like i7, you will notice that some cores are marked as parked. This is a new feature in Windows 7 that optimizes your CPU’s power consumption.
Sometimes, by adapting the base parking to the performance of the PC, you can even reduce the micro-shutter that occurs when playing a game or using resources. This new feature in Windows 7 manages basic parking well, but if you wish, you can customize it according to your needs. Core Packing under Windows 7 is pretty good, but it can be even better by adapting it to your needs.
Enable or disable basic parking under Windows
Two tools can help you: Park control and management of parked CPUs.
With Park Control Utility, we manage our base parking percentage instead of registration or restart changes. It is a very simple tool that does not require much explanation. Remember that this tool only works on next-generation processors such as Intel’s I Series or AMD’s Bulldozer platform. When you open it for the first time, you will receive a warning about the application.
Make sure to back up your power configuration.
Open the command prompt and type powercfg.exe -qh > mybackup.txt.
Click Yes to access the application.
Here you can select the energy plan. Then, under CPU Parking for On AC or On Battery, you can click Enable to enable it and enter the percentage of the kernel you want to enable. When you are finished, click Apply, then click OK to access Resource Monitor and click the CPU tab to verify that Core Parking is enabled. You can download the application here.
Manage pre-captured CPUs
This utility allows you to easily enable or disable kernel parking for your CPU. Start the tool and click Check Status. Parking the core may not be enabled for all CPUs, even if the registry value indicates that the cores are parked. From now on, you can press the Park All or Unpark All buttons to turn parking on or off. You can get it here.
If you’re looking for a patch that selectively disables basic parking in Windows 7 or Windows Server 2008 R2, visit KB264606060
I can’t insist enough – do it at your own risk – even if you know what you’re doing. And please create a system restore point before making changes so you can come back if necessary