ParkControl lets you easily set CPU core parking and frequency scaling parameters for both AC (plugged-in) and DC (battery) power states of your device.īoth CPU core parking and frequency scaling are power saving features of modern CPUs. Since bursting CPU loads are the most common type for many workloads, core parking can be a substantial drag on system performance and responsiveness. However, generally, Windows is too aggressive in its core parking, resulting in high latency during bursting CPU loads, stemming from the overhead of having to unpark CPU cores.

There are many factors that will determine precisely how effective it will be for a given situation. Efficacy of Disabling Core ParkingĮmpirical evidence shows that disabling CPU core parking can make a tangible improvement in system performance. Process Lasso has a similar feature with its IdleSaver. ParkControl has Dynamic Boost to allow you to set active and idle power plans. For instance, with Process Lasso, you can automatically enter ‘Bitsum Highest Performance’ will you start a game, then go back to ‘Balanced’ when you exit. ParkControl (and Process Lasso) not only let one more easily configure CPU core parking and frequency scaling, but also allow for dynamic entrance into a higher performance power plan. The new ‘Ultra Performance’ power plan copies what Bitsum did with our own ‘Bitsum Highest Performance’ power plan and finally disables core parking entirely. Even the default ‘High Performance’ power plan is not immune. Intel moved core parking control onto the chip in the Skylake generation, and AMD followed, but still the parameters of the Windows power plans are set to aggressively park CPU cores. The aggressive core parking of Windows led to a great deal of inefficiency during bursting CPU loads. Initially, core parking was controlled entirely by the operating system. Unfortunately, this power saving comes at a price: Latency when CPUs need unparked to execute code.

It dynamically disables CPU cores in an effort to conserve power when idle. Introduction to CPU Core ParkingĬPU Parking is a low-power sleep state (C6) supported by most modern processors and operating systems. Lifetime licenses are one-time payments for all future updates. Entire Home licenses allow installation on up to 5 PCs based in the same home.

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