FIX for Win7 i7 sluggish performance

Those different keys you're telling don't have the same number? How do I know if it's that key, and not another one? Should I change to 0 all keys that have "ValueMax" with a 64?

 

To be sure, use the text to search instead of the numbers

Specify the minimum number of unparked cores/packages allowed (in percentage).

And yeah, change each Valuemax to 0 to disable all core parking. If you aren't happy with it afterwards, change them back to 64.

 

what would suggest is good for balanced performance like when u need power and battery life? I can't decide which settings.

 

I disable all core parking and leave it in high-performance profile always. To manage my power usage I use stealth mode (an Alienware feature to throttle the GPU) and adaptive power mode (nvidia control panel: Power Management Mode) for GPU and for CPU I use throttlestop by Unclewebb.

In throttlestop I make 3 settings, one set to 13x so it's maxed as much as possible. The next I call no-turbo which keeps the processor from using turbo mode (using a 12x clock) and the next is called low-power which forces the cpu to remain at 7x.

An easier way is just to switch power profiles with windows. There is a nice gadget out there with 3 big buttons - one for each mode.

I prefer using throttlestop because I can force the processor to 7x even when an app wants it all. If it doesn't NEED it all then a lot of power is saved by keeping the processor in low power mode all the time.

The noturbo is also nice because turbo mode uses more power and generates more heat. So you still get good performance but keep things at a level. I use that together with stealth mode if I want to cap the computer but still am running something that eats both cpu and gpu. The performance is lower of course.

I hope this gives some ideas..

 

I took a quick look on my main laptop with I think live messanger, windows media player and one IE open and now of the cores were parked. I'll check the power settings when I'm on it next but its set to how ever Alienware shipped it.

 

Hey i did this once, and it made the cores active. I went on Vacation and came back turned it on, and they are parked. I found the Value Max and put 2 instances to zero, but their still parked. What Can i do?

 

Hi mate.. Not sure, do you mean that after setting this registry hack that windows performance monitor reports the cores as parked?

Perhaps it's the cpu or something else? What is your system spec?

 

Thanks for getting back to me so promply. I have a Asus g73jhm(best buy referb edition), intel core i7 720, 6 gigs of ddr 3, radeon 5870.


Before Xmas break i had set the registry hack, i went and input the Value of 0 in for Valuemax. I recently checked my resource monitor, and it shows cores 0,3,5,6 as parked.

Im stumped as to why this is? It should show them as Active and (unparked).

Any Idea's?

 

Windows 7 home prof

 

Hey, I checked my resource monitor and if it's the right place (i seem to remember that it normally would show some parking here) but luckily none to be found..

I can only guess that it's something to do with your power profile.. Have you used the text to search the registry and made sure that you change EVERY instance of Valuemax (one per profile) to 0?

 

does doing this fix harm the computer?? and would it matter if i typed "Specify the minimum number of unparked cores/packages allowed" with out the percentage bit?? thanks

 

It doesn't harm the computer. The increase in performance and the temps is nearly unnoticeable but the snappier response is definitely obvious. It shouldn't matter, you probably would still find the correct string.

To be sure, I would just use the exact string I posted on the first post..

 

thanks for the quick reply.
does this fix apply only when you are pluged in or on batteries as well??

 

It's good for both (and hardly affects the battery life if at all)

For me it's standard procedure since I discovered it. Only remembering the sluggishness when I reinstall and forget to retweak.

It's idiotic to park cores when windows throws threads randomly around all the available hardware threads. The interface doesn't take up much CPU but it needs it to be low-latency. Core parking gets in the way and makes it sluggish for very little real benefit (very slight power saving).

 

So I've been monitoring the the resource monitor that win7 included and even while on "High-Performance" mode the cpu's still show as parked.

This may be the only "known" way to disable them from parking.

 

Hmm, mine definitely don't say parked anymore in the resource monitor.. Did you reboot?

 

Im having the same problem

 

Does anyone know if you can do the two types of Reg fixes and have it work? One being turning attributes off, and then the other putting the max value to zero?

Another thing is why cant my laptop find the 0cc5b647-c1df-4637-891a-dec35c318583 key?

 

Hey dude, try searching for Specify the minimum number of unparked cores/packages allowed (in percentage). instead.

Why can't your laptop find it? no idea. You haven't shared any details about your laptop so it's hard to even guess - you running windows 7?

Not sure what you mean by turning the attributes off, sorry if I'm being dumb

For me, just change the valuemax of all the power-profiles to 0 (or if you want to be specific you could just change the high-perf profile or even create your own profile called no-parking)..

Don't forget to reboot before checking if it worked!!

 

I Sent you my info about my laptop above my windows 7 Post and ill try that. This is frustrating because i tried everything, But i have an Asus G73 Jh _rboo5 (best buy referb version)

 

Oh yeah, I see that you already posted your details (maybe it's a good idea to put them in your signature too for easy reference

If you've gone into the power profiles and changed all the valuemax to 0 and rebooted then there should be no core parking anymore.

Also try
http://forum.notebookreview.com/acer/452692-acer-throttlestop-thread.html

If you haven't already tried - create a new power profile and then do the registry search again - you should find a new valuemax to reset and make sure the computer is in that power profile. Reset and see if you notice any difference.

It could be that some computers don't allow core parking to be disabled?

It's not the end of the world if it doesn't work. I went back to see what core-parking was like again and yes it's a sluggish feeling and low-latency GUI response but other than that it's not a big problem.

I hope you get it working!!

 

It worked for me, thanks! + rep

 

worked for me also!! thx!

 

Uh very interesting, not sure why i haven't seen this before. Ill test it out too.

 

hi guys,

ok, I tried the powercfg file, it's a good tool.

However.....I don't know which version of Win7 you guys are using....I don't know if all the same options are available on all the win7 versions, i'm personally running win7 Ultimate 64x on my m15x

After I tried the powercfg to set the 100 value on the minimum value....I realized that I could do this directly from our GUI power plan window

click on your battery icon on the bottom right of your screen....

Press 'More Power Options'

The window with your power plans opens up and you can see the currently selected plan.

In my case I have selected 'High Performance'

Now to the right side of your selected plan click on 'Change Plan settings' (in blue)

Now look on the left lower side for 'Change advanced power settings' (in blue too) and click on it

Now you see a window where you can change the behavior of every single part of your machine in respect to power management....this is your GUI equivalent of powercfg

Look through the Menu, and find 'Processor Power Management', expand it

You will see 3 sub menus, 'Minimum Processor State' 'System Cooling Policy' and 'Maximum Processor State'

All you have to do is expand 'Minimum Processor State' and make sure the value for 'Plugged in' is 100%

Apply, reboot, and that's it...
This will eliminate cpu parking from your High Performance plan and only when you are plugged into the wall.

now, I don't know if this is available on all Win7 versions, but give it a try. This could be the 3rd and easiest way to change the cpu parking setting.

 

@zAlienz

Correct me if I'm wrong, but that will also force the CPU to run at maximum clock speed when it's plugged in. What if I want to let my CPU downclock to 900MHz when I'm using it, but disable core-parking?

There's a difference between core-parking and core-MHz.

The other methods, AFAIK, only affect core-parking.

~Ibrahim~

 

Yes I think that the Power GUI options are more about throttling. This is (as ikjadoon says) more about the process of cores parking or not.

There's a link on the first page with more details..
Windows 7 / Windows Server 2008 R2: Core Parking / Intelligent Timer Tick / Timer Coalescing - Ask the Performance Team - Site Home - TechNet Blogs

Incidentally - I had upgraded to SP1 and still needed to do the tweak to stop the sluggishness. But since installing using a slipstreamed Windows 7 (sp1) I think they might have optimised the whole cores and parking issues.

My machine isn't sluggish since I fresh installed W7 SP1 and I haven't needed to use this tweak since the response seems to be very smooth already. I also noticed that the usage of individual cores and also HT is much much better.

Before it would just throw around threads onto any thread (including shifting between both HT threads on each core - now it seems to ignore the HT thread unless needed. Resulting in lower temps, lower power and better performance - as far as I understand it.

The example image shows renoise (music program) playing using 30-40 threads, you can see that windows 7 is now pooling them onto each core and not trying to use the HT as another full core. I didn't see this until I reinstalled fresh using win7 sp1, incidentally.

I think that it's more intelligent about the way it parks the cores

 

just made an account to say THANK YOU, you are god. like the one guy on this fourm said i don't know how it took me till now to finally find this. for some reason i didn't have an option to change my core parking in the advanced power settings (didn't even realize my rig was doing this) anyway this made my comp sooo much snappier, windows reacts much faster, mouse laag is gone, microstutter is gone, computer doesnt stutter near as much when i'm playing a game without vsync.

 

Great news! I'm very glad it helped!

 

I tried the method in the first post and some of my CPUs remain parked. Some other users face the same problem too. Perhaps this is due to Windows 7 SP1 being installed?

Anyway, I found this thread here Windows 7 & Core Parking .... a *better* way to Turn It OFF .....
There's a method posted by mad_man regarding deleting attributes entry and the core parking settings can be changed via control panel\power option after the registry tweak. You might want to set it to 100% instead of 0% though.

This works for me. =)

 

Thanks for posting, I think someone posted it somewhere in this thread also..

I'm not sure why the registry edit didn't work for you - I'm using Windows 7 x64 sp1 also and it worked for me..

I think that the thread management is improved in SP1 also so the benefit is less anyway

Thanks again for sharing

 

I too have experiencing sluggish performance on Windows 7 SP1 64bits. I tried the registry tweak here and so far so good, but I couldn't tell if it really made the deal, as I haven't tested that much yet. Looking forward to it, as sluggish performance isn't something I was looking for when getting an i7.


But, a couple of questions:
Why changing the percentage value to 0, why don't change it to something like 25% or 50%?
How would it impact on power consumption? (Comparing the tweaked system with a "pure" one that parks cores)

 

Well, my system still stall on things like when smoothly passing through windows taskbar, to load each app's "aero peek". Firefox still has harsh scrolling too.

Wasn't this tweak supposed to enhance this kind of things?


On Linux I get much smoother experience, even that it still doesn't have good drivers yet :/

 

Thanks for the questions, I think most of them are discussed through the thread, why not have a read through

 

hmmm I see. Lazy me.

I'll take the time for that, probably I'll find some other interesting things too heheh

 

Haha, yeah I'm the same often. But this is, indeed, quite an interesting thread to read through

 

Hey folks, I have tried to disable core parking but it is still on. Laptop specs below, main issue is stuttering when playing music and video, it's driving me mad.
I have searched for core parking, Specify the minimum number of unparked cores/packages allowed (in percentage).and the string and set each Maxvalue to 0, but core parking is still enabled and parking cores in resource monitor. Win7 X64 SP1.

Any ideas?

 

There are some other approaches (look through this thread a couple of pages back) - also remember to check with power profile you are using - high performance is best - naturally since it doesn't throttle the bus etc. The coreparking settings are per profile also so it could be related to that.

If not, try new Video and or Audio drivers - these are more likely culprits for laggy DPC

Perhaps turning off core parking will be the solution, perhaps not - GOOD LUCK!!

 

Hey, this worked for me, I was able to turn off core parking in advanced power settings after applying this registry tweak here:

http://forum.notebookreview.com/asus/494232-how-adjust-core-parking-inside-windows-7-a.html

No more micro stuttering and power draw of processor is the same at idle, 4.16W shown in HW Monitor Pro, without any cores parked and battery life does not seem any different

 

yeah.., u very very awsome Mr Pras...^^

 

Hey guys, I'm new here, just got my XPS15 early this month.

I've tried this fix and while I managed to change all the MaxValue to 0, my resource monitor still shows 3 parked cores.

Any help? Thanks.

 

Also, the Atheros wifi card/drives on some asus G series laptops have series DPC lag.

Cheers,

 

I have seen that some people are saying exactly the same - I couldn't reproduce this because it always worked for me. However - since SP1 I didn't bother with this fix because they seem to have fixed it in SP1. I would look elsewhere for the problem if you are having laggy performance. Usually audio drivers are the culprit.

 

it fixed my magicmouse from released randomly..

i don't know how this actually happen..

 

Which means that after installing SP1 we won't need to set the value to 0 anymore and just keep the default value?

 

Hey, just wanted to say thanks for this, it was a quick and easy way for a nub such as myself to do this without hassle.

To the condescending guy(newsposter), this worked and was easily understandable for a guy who doesn't do stuff like this regularly.

Also if you look in the poll he voted 'no, i didn't see any difference' even though he knows it works.

Petty..

Anyway, thanks again Mr Pras!!

I kept wondering why my unit would lag here and there, and then I found this thread and voila! Huge improvement!