Win 7 - Core Parking

[night shift]

Has anyone modified the registry in Win 7 to disable the core parking function
as it turns out this seriously affects DAW operating performance.

I was expecting my i7 960 processor to make short work of CPU intensive
set ups but this is not the case as core parking prevents optimum use of all cores.

Got my system from Inta-audio who are testing methods to disable core
parking but this is taking some time suggesting that its not an easy fix
as mentioned on other web pages.

I'm not deleting files from win 7 registry until there is a general agreement
on the right method.

Sorry if this has already been posted..have not done a proper search..cheers

[h4nc0]

thanks for this tip. I've just tried and it does seem to make a difference.

[distaudio]

Does anyone have a link on how to do this with a 2 x core system?

I'm very interested to give it a shot.

Thanks

[macmurphy]

i tried it because i noticed that half of my cores were parked all of the time no matter what app i was running.
why have 8 logical processors and only use half? so i did this(info copied from elsewhere) -

- go to REGEDIT
- Search and Find this key [ 54533251-82be-4824-96c1-47b60b740d00 ] without the " [ ] "
- alternately, you can search and find the phrase " Core Parking " - again without the " "
- either of the above searchs works and delivers the exact same results
- delete the key(s)
- make sure you search the whole Registry - you should find it [ from memory ] 6 times but will only be able to delete [ from memory ] the first 2 or 3 instances - dont worry about the ones you cant delete - just delete all the ones you can
- exit the Registy
- Shutdown Win7
- Do a full cold shutdown and re-boot

not sure if i found the key 6 times but i deleted what i did find - after backing up! - and when i checked the resource monitor all 8 cores were unparked.

@distaudio - i'm not sure that 2 core systems are effected by core parking. take a look in your resource monitor, it will tell you if there's any parking occurring. if there is
the method above should also apply.

[night shift]

i tried it because i noticed that half of my cores were parked all of the time no matter what app i was running.
why have 8 logical processors and only use half? so i did this(info copied from elsewhere) -

- go to REGEDIT
- Search and Find this key [ 54533251-82be-4824-96c1-47b60b740d00 ] without the " [ ] "
- alternately, you can search and find the phrase " Core Parking " - again without the " "
- either of the above searchs works and delivers the exact same results
- delete the key(s)
- make sure you search the whole Registry - you should find it [ from memory ] 6 times but will only be able to delete [ from memory ] the first 2 or 3 instances - dont worry about the ones you cant delete - just delete all the ones you can
- exit the Registy
- Shutdown Win7
- Do a full cold shutdown and re-boot

Not sure if i found the key 6 times but i deleted what i did find - after backing up! - and when i checked the resource monitor all 8 cores were unparked.

@distaudio - i'm not sure that 2 core systems are effected by core parking. take a look in your resource monitor, it will tell you if there's any parking occurring. if there is
the method above should also apply.

I tried the above but the regedit window did not find core parking or the key. It maybe that the pre-configuration by Inta-audio prevents this. They did say they could make the changes required remotely if I connected to the web but this was a month now and it seems they are still running tests on the changes to be made

This should be a feature not a requirement to modify the registry

[macmurphy]

This should be a feature not a requirement to modify the registry

yes i completely agree. it's the only thing that's irked me about win 7.

i hope Inter-Audio can sort it out for you.

i had a sniff around the web and found this method -

- Go to Regedit

- Find this key:- " 0cc5b647-c1df-4637-891a-dec35c318583 "

- Within this key, there is a value called: " ValueMax "

- This value represents the % number of cores the system will park - the default 100% ie: all Cores are potentially park-able

- Change the value from 64 to 0 so the " ValueMin " and " ValueMax " are both zero

- You will have to find the key a few times and repeat the process for each time it is found - the number of instances will depend on the number of power profiles in your system [ in my DAW it was only found twice ]

- Do a full shutdown and power-off and cold-re-start

maybe try that?

[night shift]

This should be a feature not a requirement to modify the registry

yes i completely agree. it's the only thing that's irked me about win 7.

i hope Inter-Audio can sort it out for you.

i had a sniff around the web and found this method -

- Go to Regedit

- Find this key:- " 0cc5b647-c1df-4637-891a-dec35c318583 "

- Within this key, there is a value called: " ValueMax "

- This value represents the % number of cores the system will park - the default 100% ie: all Cores are potentially park-able

- Change the value from 64 to 0 so the " ValueMin " and " ValueMax " are both zero

- You will have to find the key a few times and repeat the process for each time it is found - the number of instances will depend on the number of power profiles in your system [ in my DAW it was only found twice ]

- Do a full shutdown and power-off and cold-re-start

maybe try that?

Thanks, I'll try this tomorrow

[night shift]

This should be a feature not a requirement to modify the registry

yes i completely agree. it's the only thing that's irked me about win 7.

i hope Inter-Audio can sort it out for you.

i had a sniff around the web and found this method -

- Go to Regedit

- Find this key:- " 0cc5b647-c1df-4637-891a-dec35c318583 "

- Within this key, there is a value called: " ValueMax "

- This value represents the % number of cores the system will park - the default 100% ie: all Cores are potentially park-able

- Change the value from 64 to 0 so the " ValueMin " and " ValueMax " are both zero

- You will have to find the key a few times and repeat the process for each time it is found - the number of instances will depend on the number of power profiles in your system [ in my DAW it was only found twice ]

- Do a full shutdown and power-off and cold-re-start

maybe try that?

Thanks, I'll try this tomorrow

I've spent several hours of my evening trying to find this registry key. There's something not right about this. This situation with Win 7 should have a higher profile as I would have stuck with Win XP.

Very disappointed and will be contacting Inta-audio who I consider should not have sold this software when they were aware of this situation

I also believe Ableton and all other DAWs should make their users aware as the performance hit is significant.

[distaudio]

Thanks for the tips guys.

Regardless of whether it works on dual core I applied the change anyway.

Will see what happens.

[night shift]

Ah,

At long last. Inta audio managed to remotely operate my PC and remove three instances of the core parking limitation as discussed above.

Makes a huge difference. I can now run Arturia softsynth @192khz no problem

[macmurphy]

excellent!