** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking

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John
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/21 08:44:28 (permalink)
I'm not sure any of read Noel's post. If you did it may turn out that this is much ado about nothing. It all depends on how well Windows can manage this. I am not saying that this tweak isn't going to be needed and it does offer a fix if and only if we see a problem. Otherwise it is a bit premature to consider this as absolutely needed. Lets wait and see. Also people do run Windows 7 now and I have not seen any report of any problem associated with this as yet. So I think we need to calm down and see how this turns out. 

It would be nice to have this as an option though.

Best
John
#31
eratu
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/21 09:11:42 (permalink)
+1
#32
emwhy
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/21 09:24:24 (permalink)
However under higher load it appeared that all cores were working

Thanks Noel. That's all I really needed to hear at this early point. If you have a beefy project, you wont be giving the OS a chance to give a few cores some time off.


#33
Jose7822
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/21 10:14:56 (permalink)
Teksonik


It's unreasonable for anyone to have to do Reg tweaks to a new OS version.

Your complaining about OS tweaks doesn't go at all with your user name. :-P
 
OS tweaks (including REG edits) have been around since OS have been around.  Not sure why you're surprised about this.
 
Like Dave said, Microsoft caters to the mass (that's not us by the way).  So that's why we're the ones who need to tweak our systems.
 
It's really not hard at all.

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#34
emwhy
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/21 11:11:37 (permalink)
OS tweaks (including REG edits) have been around since OS have been around

+1...always have to twaek, have been since Pro Audio 8 on Windows 95.

#35
juca
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/21 11:37:00 (permalink)
TomG


Hi juca - no it %100 does not affect  Core 2 Duo  DAW's.

Core Parking is a Win 7 feature which only  operates on  4-core or more systems - be they real or virtual cores - thats why i7 users were the first to  "see" it

Tom


Tom, thank you for your time and help.
Best regards.

****** Juca Nascimento ******
Keyboards/Composer/Arranger

#36
Bristol_Jonesey
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/21 11:51:39 (permalink)
ducatibruce2



Yes but don't we all want to be green? I am going to build a 1 watt power supply for my next desktop just so I can say I am greener then anyone else.

 
Mine's powered by a dynamo driven by an excercise bike - be sure to keep an eye out for my new topic "How do I get the heavy breathing out of my vocal tracks"

Mine's powered by a hamster running round in a wheel.
 
He loves it, and so do I!!!!

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#37
phil5633
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/21 12:58:22 (permalink)
Noel Borthwick [Cakewalk]

BTW I just wanted to clarify that we're aware of core parking. We ran into this while we were doing some benchmarking and saw some cores not used. However its important to note that this doesn't necessarily mean underperformance. I wrote some stuff about it in my Win7 article on our blog.
 
In the test we did we didn't see any observable degradation in performance with core parking on other than the task manager CPU readout. However under higher load it appeared that all cores were working. Were you able to demonstrate actual glitching or loss of performance with core parking off? I agree though that core parking is primarily a power management feature so if power is not a concern its ok to disable it.
 
Noel, doesn't selecting the "always run at maximum power" [option wording is a paraphrase. I'm not at my DAW] option turn off core parking? I've been running Windows 7 since the release candidate was available and switched to RTM as soon as it was available. I always choose the maximum power option and don't recall seeing any cores with very low loads. Core 1 thread 1 and sometimes one more [maybe core 3 theread 1] run at a somewhat higher load, particularly for the undemanding projects I've been working on lately; but none have been off, at least when I looked. And as you describe, when I've pushed the load up all eight threads have leveled out nicely.
 
Thanks.
 
Bill


BillP - SONAR Platinum, MOTU 828mkII, Focusrite 18i8, Akai MPK49, Windows 10 x64, Core i7-6850K 3.60GHz, 32GB DDR4, ASUS X99-DELUXE--II MB, AMD R7 250 GPU,  Behringer ADA8000, dbx 386,  (2) Aphex 207, (2) ART TPS II, Presouns E5/E8, Avantone MixCubes, Presonus Monitor Station v2
#38
B San
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/21 15:29:57 (permalink)
Interesting thread fellas

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#39
riojazz
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/21 15:33:41 (permalink)
...
post edited by riojazz - 2010/06/09 11:59:27

Software: Cakewalk by Bandlab; Adobe Audition; Band-in-A-Box audiophile; Izotope Ozone; Encore; Melodyne; Win 10 Pro, 64-bit.

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#40
TomG
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/22 05:46:40 (permalink)
Hi all

FWIW I can clarify the following.

I have a Core i7  Xeon 4.2 gig quad-core [ 8 cores in total ]  DAW.

I have a simple Sonar 8.X test project.

- 72 Tracks each running 1 x Sonitus Verb  1 x Sonitus Comp and  1 x Vocal Strip - all input monitoring on, all at 32 Samples / 0.7ms latency @ 24/44.1 -  Layla 3G ASIO driver  - in total, 216 EFX input monitored.

On my DAW the above project has my CPU sitting around %83 but even at these high loads, the CPU spiking - especially with the Sonar 8.5 meters is massive - constant and erratic  "amber-ing" and  " red-ing "  on the cores bouncing all over the place - Windows Task manager reports a similar story.

Turning the Power Mgt to " always on "  or  " full "  or whatever  does not  change or fix this.

The only thing that does is the  reg edit in my first post.

I dont know how hard / high Noel and the team were testing this issue, but the above is my reality and the fix  " fixed " it to being perfectly even and flat subject to the  *  in my first post.

To me, this is a no-brainer tweak with  zero  downside  [ other than it effectively stifles power mngt - but who cares in a dedicated DAW ]  and a massive upside  ie:  all cores all on deck all at the same time all sharing the load evenly regardless of overall CPU load regardless of a small-cpu-load-project  or  a  massive-cpu-load-project.

If you dont want to do the tweak please dont - but other than the power saving caveat above - I cant think of any reason not to do it - there is only upsiade.

Tom
#41
John
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/22 06:04:43 (permalink)
Tom I agree with your analysis. I will probably do the the tweak for the reasons you outline when I goto Windows 7. I wrote my post only in response to so much angst being shown by so many.  Also it is likely that by the time I am able to goto Windows 7 64 bit this will have been made a simple power management selection. But if not the tweak you have here is outstanding. I want you to understand that. As you point out and I think my posts about being green also try to point out that on a desktop this is the proper way to go. I can see that on a laptop that is used for things that have nothing with audio its not a bad idea. On a desktop it seems silly. That was the point of my "green" posts.
post edited by John - 2009/10/22 06:55:11

Best
John
#42
TomG
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/22 06:37:40 (permalink)
Hi John

Thanks for your post - I certainly didnt in any way read your posts as anything other than informative and totally accurate.  Your posts here are always well thought out and considered and I always look forward to your thoughts and comments and contributions.

As you say,   *hopefully*  a simple  "switch"  or  "setting"  will be found  or an update issued [  SP1 maybe ] to make this a simple on/off selection

All the best,
Tom
#43
Noel Borthwick [Cakewalk]
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/23 08:06:58 (permalink)
Noel, doesn't selecting the "always run at maximum power" [option wording is a paraphrase. I'm not at my DAW] option turn off core parking?

 
I believe it does turn it off. If thats not it there is definitely an option in the power management that implicitly turns it off. Not at a Win7 machine now so can't verify. It would have been nicer if there was a UI option to ONLY turn off core parking though.

Noel Borthwick
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#44
Noel Borthwick [Cakewalk]
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/23 08:10:56 (permalink)
The only thing that does is the reg edit in my first post.

 
Interesting. That is a bit wierd - ill try and find out more about it. When we tested it we were able to turn off core parking from the power management UI itself by disabling power management without any reg tweak. When we did that task manager no longer showed cores being idle.
 
Did you see that on just that one project or any project in general?
 

Noel Borthwick
Senior Manager Audio Core, BandLab
My Blog, Twitter, BandLab Profile
#45
TomG
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2009/10/23 08:49:03 (permalink)
Hi Noel

It was / is on all projects.
 
I've looked at all the power management UI options with no luck - also, in my testing I was able  " un-park " the cores but that did not solve the  uneven-cpu load issue - I hope you are right Noel - if there is a simple way to  unpark-the-cores  and  get even-cpu-load-across-all-cores-regardless-of-load  then that would be great - but so far, the only thing that %100 does work is the reg edit.

There is one other possiblity, but I cannot try it on my machine and it may not be  [ easily ]  do-able. 

If you disable the  " Power "  Service  [and re-boot]  this will stop all power managment and therefore possibly also Core Paring........................ problem is that when I disable and shutdown the " Power " Service  it also turns off and disables the " Windows Audio "  Service  and  the " Windows Audio EndPoint Builder "  Service -> result = no Audio and no Audio Driver. 

With  XP and Vista you were able to go in to the Registry and remove / delete the  "Dependency" between Services  but in Windows 7, in the Regtistry, the " Power "  Service Registry entry shows no Dependencies and the  " Windows Audio "  Service  and  the " Windows Audio EndPoint Builder "  Service do not list " Power "  as a Dependency - so you cant [ in any way that I know of ]  break the Dependency between the Power and Audio Serices - once you turn the Power Service off, you lose all your Audio Services.

Hope this helps.

Tom

PS: I use a Layla 3G with the ASIO enhanced 8.2 Driver
post edited by TomG - 2009/10/23 09:04:02
#46
Muziekschuur at home
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2010/03/20 06:12:34 (permalink)
Could the GODMODE provide an easier tweak for us mere mortals?

Cakewalk Sonar Platinum Windows 7 32bit & 64bit (dualboot) Gigabyte mobo Intel dual quad 9650 & 4GB Ram RME DIGI9636 & Tascam DM24.  M-audio Rbus & SI-24 Alesis Pro active 5.1 & Radford 90 transmissionline monitors. Roland RD-150 piano Edirol UM-880 & alesis fireport.
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#47
Noel Borthwick [Cakewalk]
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2010/03/21 18:40:33 (permalink)
There is an easier way without tweaking the registry:
 
Even though there is no user interface in Windows 7 to enable/disable core parking, fortunately there is an documented way to disable it in the Microsoft performance tuning guidelines. Look for "Core Parking" in this document.
 
To summarize:
To turn off core parking, set the minimum cores parked to 100 percent by using the following commands:
Powercfg -setacvalueindex scheme_current sub_processor bc5038f7-23e0-4960-96da-33abaf5935ec 100
 
Powercfg -setactive scheme_current 
  
 
post edited by Noel Borthwick [Cakewalk] - 2010/03/21 23:56:34

Noel Borthwick
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#48
Crg
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2010/03/21 18:49:13 (permalink)
Is the path to that in that document? Excuse me for being an idiot, but how do you get there? 

Craig DuBuc
#49
jsawoski
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2010/06/09 03:27:12 (permalink)

I read this "critical" alert with great interest and found it to be completely unnecessary, with the new HP laptop I just got, running Windows 7 on a quad-core i7 processor. If this registry tweak were actually necessary, I believe Cakewalk would have included it in a ReadMe or pop-up message. 

But one thing I discovered that helps with Windows 7 is ASIO4ALL. It instantly eliminates popping, stuttering, etc.

Try it: http://www.asio4all.com

TomG


As of  01 November 2009
NEW / BETTER METHOD IS HERE:-

 
Hi all 

Who is affected
The following is confirmed by me  [ in Win 7 X64 RC ]  and by a colleague of mine who is a MSDN subscriber who has access to the final / RTM Windows 7 X64.    It is NOT  a Sonar 8.5.1 issue - it is an O/S issue.   It is also NOT  present in Vista SP1  x64 or X32.   It  only  applies to Windows 7 X64 and X32 and  only  in systems using  more  than 2 physicial CPU's  and/or  more than 2  "logical" cores - ie:  Core i7 DAW's.

The Problem
 
Core Parking is VERY bad for DAW's - great for  non-DAW Laptops - but very bad for us in the DAW world.
 
See here for a bit of info / explanation / more info about CPU Core Parking - http://channel9.msdn.com/forums/Coffeehouse/453920-Windows-7-on-more-than-4-cores/ 
Without the following  " fix "  you will see massive CPU spiking in Sonar and Windows Task Manager - some CPU cores will be "turned off" / "parked" depending on load and they will be dynamically turned on or off and dynamically loaded up or down as the system deems necessary -  the scope for glitchs / pops / clicks / droputs  etc.... in such an environment is simply enormous. 
To the best of my knowledge, there is no known "switch" to turn it off - no utility I am aware of to "tweak" it off.
 
The Fix
 
- 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
 
The Result
 
Perfect* load balancing across all you CPU cores - no spiking - both in Windows 7 Task Manager and Sonars CPU meters
 
Hope the above is of help.
 
Tom
 
* -  you will still see some  " unevenness "  depending on the EFX / VST / Synths  etc... you use because unlike Sonar - which is excellently "coded" to be multi-thread aware, compliant and cpu-load-balanced,  many, many other  EFX's / VST's / Synth's  etc...   [ most actually ]    are very lazily and poorly coded / written and  are no-where near  as  " even "  when it comes to multi-thread awareness,  compliance and cpu-load-balancing.



post edited by jsawoski - 2010/06/20 01:02:50

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#50
mauryw
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2011/06/22 10:37:37 (permalink)
PHY Loopback problem after DAW Tweak
 
This is a bit off topic, but I don’t know where else to go.  I installed Win 7 x64 on my Quad Q6600.  I followed the tweak suggestions and disabled several services to decrease CPU overhead.  What I found was that connection to internet was inconsistent, i.e., sometimes it would be closed and upon reboot would be open, but was not predictable or consistent.  I installed and used the Realtek LAN diagnostic tool and found that ALWAYS, when the internet connections was closed, running the PHY Loopback test was necessary and sufficient  to open the connection.  So, what service do I need to enable to make the connection consistently open?  I don’t see a way to return the tweaks to the original defaults.  Is there a way to do that?  Thanks for your help!!!!

Larry Williams

A process can not be understood by stopping it. One must flow with it and become one.

SONAR Platinum x64, WIN 7 Pro x64, i5-2500K, z68 mobo, 8 Gb RAM, Roland Quad-Capture, 2 SSds, 3 SATA HDDs
#51
mauryw
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2011/06/22 11:00:13 (permalink)
PHY Loopback problem after DAW Tweak
 
This is a bit off topic, but I don’t know where else to go.  I installed Win 7 x64 on my Quad Q6600.  I followed the tweak suggestions and disabled several services to decrease CPU overhead.  What I found was that connection to internet was inconsistent, i.e., sometimes it would be closed and upon reboot would be open, but was not predictable or consistent.  I installed and used the Realtek LAN diagnostic tool and found that ALWAYS, when the internet connections was closed, running the PHY Loopback test was necessary and sufficient  to open the connection.  So, what service do I need to enable to make the connection consistently open?  I don’t see a way to return the tweaks to the original defaults.  Is there a way to do that?  Thanks for your help!!!!

Larry Williams

A process can not be understood by stopping it. One must flow with it and become one.

SONAR Platinum x64, WIN 7 Pro x64, i5-2500K, z68 mobo, 8 Gb RAM, Roland Quad-Capture, 2 SSds, 3 SATA HDDs
#52
Cactus Music
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2011/06/22 11:26:15 (permalink)
You need a proper audio interface with good ASIO drivers, not a computer lobotomy....
This thread is full of misinformation to the point of needing a delete or something..

Johnny V  
Cakelab  
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#53
dariunas
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2011/06/22 11:58:25 (permalink)
Interesting. I'm running the Q6600 and notice in Sonar 7 PE that core 2 seems to be riding noticably higher than the others under normal use. Hasn't seen any testing or heavy loads so I can't compare to see if Windows calls all the cores in when it should...

--Intel Quad Core P2.4Ghz (Q6600) 8Gb RAM, MSI Fanless 9500GT, OCZ Vertex SSD 60Gb + Samsung Spinpoint 750Gb (x2=1.4Tb), M-Audio Axiom Pro49, M-Audio Audiophile 24/96, M-Audio Delta 1010, Yamaha HS10, Edirol MA-15D--

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#54
Amour013
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2011/06/22 12:02:33 (permalink)
Cactus Music


You need a proper audio interface with good ASIO drivers, not a computer lobotomy....
This thread is full of misinformation to the point of needing a delete or something..

 
+++100000000000

John Amour

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#55
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2011/06/22 21:17:04 (permalink)
I did the registry tweak and now I see equal loads on all cores which I did not see before.  I'm not sure how this could be misinformation.  It works I have seen it with my own eyes.  Having cores parked on a desktop daw makes no sense. I have 4 cores why would I not want them all being used.

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#56
Cactus Music
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Re:** Critical ** Windows 7 DAW Tweak .... Disable CPU Core Parking 2011/06/22 21:20:06 (permalink)
Please let this die!!!!! it's an old thread and the info is very outdated etc....

Johnny V  
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#57
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