Hi all, since ParkControl was the OP here (excerpts and a link), I was given authorization to post here.
As the OP mentioned, quoting from our page, disabling core parking can have a benefit on performance. This is because the ramp-up time is non-negligible, or Windows is too aggressive, whichever perspective you choose to prefer. In fact, that's why Intel went with on-chip managed core parking with Kaby Lake.
Indeed, I found this change by Intel rather vindicating.
Since this post I've updated ParkControl many times to add new features, such as:
1. Notifications when the active power plan changes by ANY process. It will report who changed the power plan, to and from what. (Pro)
2. Bitsum Highest Performance power plan for a one-click optimization to disable all core parking (and frequency scaling). I don't think it gets easier than that. (Pro)
3. Ability to auto switch out-of or into Bitsum Highest Performance based on user activity with Dynamic Boost. (Pro)
4. Ability to unhide applicable CPU subsystem settings in Power Options (free).
5. Ability to adjust all core parking settings for any power plan (free).
6. Real-time view of core parking activity with dynamic system tray icon. (free)
While a Pro edition is offered, you are not nagged or otherwise coerced into buying it.
The prior utility mentioned is also popular, but does direct registry edits (last I checked). I know they continue to refine it too though, so maybe this is changing. I wish them the best, but have to mention that one deficiency because...
I included full information on how to make these changes without resorting to registry edits. Why? Direct edits bypass important system notifications of changes to the power plans, thus often may require a reboot. Doing it the 'right way' is both instant and no reboots required.
o bring this thread 'current'.