Tom,

Thanks a lot for the info.  And big thanks to sky60234 for providing this simple method.

There's another new feature in Win 7 that people may want to avoid as pointed out in this thread:

http://forum.cakewalk.com/tm.aspx?m=1858476


Just throwing it out there for those who haven't read it and may not want this in their system.


Take care!

Hi Jose

Many thanks - I hadnt realised about the system reserved partition - much appreciated - will go and " fix " it now.

All the best,
Tom

No problem!

It's good that we can interchange information like this.  That's why I love this forum :-)


Take care!

Or simpler yet just cup the text below and put it into a text file named "disable core parking.reg" then double click the file and answer yes when windows asks of you want to merge this into the registry.

copy the text below this line:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00\0cc5b647-c1df-4637-891a-dec35c318583]

"ValueMax"=dword:00000000
 

ooops! wrong thread!

TomG




PS: I assume it also applies to AMD quad-core cpu's but I dont use AMD for my DAW'a any more so I cant be certain, but my expectation would be that AMD quad-core would respond to core-parking exaclty the same as the Intel quad-cores.

I'm not so sure. I'm running an AMD phenom and in a fit of curiosity I ran sonar for about 45 minutes with the resource monitor running and it never parked a core. I intentionally went totally inactive for over 5 minutes twice and it just never happened. So I'm guessing that either a) AMD processors are not affected, or b) core parking doesn't happen quite so much.

ymmv
 

Has anyone actually had a problem during the use of Sonar under win 7 that they can track to core parking that has not been disabled?

There is a comment on it in this interview:
http://www.jsonar.org/drupal/content/how-windows-7-will-effect-your-music-production

but the comment does not really say there was an associated problem or interruption of service.

frightful echo in here:

http://createdigitalmusic.com/2009/09/29/obsessive-windows-7-under-the-hood-guide-for-music-can-you-finally-dump-xp/

Maybe Noel can clarify whether or not turning off core parking is likely to be of benefit.

Can't remeber which thread, but I do remember Noel saying "There was no appreciable difference..." in any of their core park testing.  No hiccups, no bumps, nada.  Ergo, they were not at all concerned with core parking. 

Ergo, I did not remember this until you said, "Maybe Noel can clarify...".    

You could probably search "Noel" and "Parking" and find it on the first try.  It wasn't more than a month or two ago.

So I tried the change and was able to edit the key like 3 times I believe. I changed the max value from 64 to 0. Exited and then shut down. However when I restart and go the resource monitor I still show cores being parked. I went back to regedit and searched for the key again to double check and the changes are still there correctly made as far as I can see. I have a dell xps 900 i7920. Any ideas what I might be doing wrong or why this fix wouldn't be working.

Did you disable SpeedStep in the BIOS?

Restart your computer and press F2 on boot, which will take you into the BIOS.  I think the SpeedStep setting is under "Performance" (or similar wording).  Shut it off and see if that helps.  Also, make sure that your power setting is set to "High Performance".  This can be found in the Control Panel under "Power Options" (change the View to "Small Icons" to make it easier to find).


HTH