Topic Title: Disable Core Parking... Windows Tweak can improve performance
Topic Summary: Keep all cores active Multicore processors
Created On: 07/17/2013 02:44 PM
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 07/17/2013 02:44 PM
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stumped
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Core Parking is a feature of Windows 7 & 8 that is causing rare performance problems.  Without the following " tweak" you may see CPU spiking in your programs 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 article I am linking to is one of many found on Google but it is more straight forward as to the fix > here  The tool allows you to easily disable Parking for different power states..ie. Turn off parking in 'High Performance" power setting and leave it enabled for "'balanced' or 'power saving' mode. With this 'fix', hyper threading is still active (Intel processors).

 Some reference articles:

http://allisterb.blogspot.com/2013/01/the-saga-of-muticore-cpus-core-parking.html

http://ultimatewindows7gamingoptimization.blogspot.com/

http://support.microsoft.com/kb/2646060

 http://www.thewindowsclub.com/enable-disable-core-parking-windows

 

 

 



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Edited: 10/23/2013 at 03:42 PM by stumped
 07/21/2013 01:54 AM
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Mime
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Some people swear by that.  I wouldn't be surprised if it was a micro-optimization, but I still have yet to see a reasonable explanation for why disabling core parking should significantly affect performance.  I mean... some people swear the moon landing didn't happen either.



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 07/21/2013 12:03 PM
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black_zion
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I would have to think it is much more of a subjective improvement than an objective one. The same thing applies to most of the "how to tweak your SSD" articles. Come to think of it, it is also the kind of thing which plagued the first generation Phenoms, the TLB errata.

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 07/21/2013 01:08 PM
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stumped
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Isn't subjective all that matters? The beauty of the tool is that you can turn it on or off for any power state you are using. Which would make it easy to do a 'objective' test of your processor. I just did a full system test on PC Pitstop on my gaming computer and my Acer cheapo laptop. Both scored higher on the CPU test with the parking disabled. Before the PC Wizard starts with the 'that test means nothing' schtick...I would say try it. I feel like I paid for all these cores and I don't care about power saving settings. If I played BF3 anymore, I would sure give this a try.



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 07/21/2013 01:51 PM
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Mime
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Originally posted by: stumped Isn't subjective all that matters?

If you care at all about how the machine works, then no. 

There's multiple layers to any complex system, and you won't be able to understand any but the most transparent of them without an objective and reliable method of collecting information.

But if all you really want to do is tinker with things as a way to pass the time without giving a thought to any of these pesky details... then yeah... fiddling with core parking is just one of many ways to do that.



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 07/21/2013 02:09 PM
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stumped
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I thought the Microsoft fix was interesting even tho it deals with AMD processors.



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 07/21/2013 04:48 PM
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Mime
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That's because this patch is really just an addition to the patch made to the win7 scheduler that tells it how to schedule threads properly for Bulldozer.  If you don't have one of those, then there's even less reason to try mucking around with this thing.



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 07/21/2013 05:45 PM
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stumped
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Well, there's mucking going on everywhere. People with crossfire setups muck around and disable the ULPS feature of Windows just to solve/help/cure 'stuttering,etc' percieved issues. Without a good mucking they would have had to live with it. The same holds for single card users. This is a mucking for a Windows feature that effects the users with one graphics card. The beauty is that tools are available for both issues to allow you to turn them off or on. Turn them on and if it helps then happy days. If it doesn't, then turn it back. And if you look at it another way, Microsoft needs a good mucking.



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 07/21/2013 06:41 PM
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Mime
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That's what I'm talking about... You think that by mucking with this widget you've adjusted things to your liking, but you know not the ways in which your mucking operates.

The reason for the patch wasn't someone saying "Core parking is bad, mmmkay?", but someone saying "Crap! Scheduling for Bulldozer is still all mucked up.  We need another patch for it.".  And so, they started mucking around with it again.



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Edited: 07/21/2013 at 08:50 PM by Mime
 07/21/2013 10:07 PM
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black_zion
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Still would have been better if they paired the two integer cores together in hardware so you end up with a sort of hardware hyperthreading which works...Home applications just aren't built to take advantage of the Bulldozer architecture, and they won't be, not as long as Intel has the commanding market share as well as processors which have a much greater IPC capability. I know that's the main goal for Steamroller and Excavator, as well as what follows, Concrete Mixer probably, but who knows what Excavator will bring...

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 07/23/2013 08:38 PM
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SteveOx
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So pretty much; this software or the idea of Core parking mostly has to do with someone who is running an i3-i7 processor?

Im still running an Intel Dual processor; so this software is of no benefit to my type or CPU?? 

Ox

 07/23/2013 09:01 PM
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black_zion
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If you're still running a Core 2 Duo in 2013, the least of your worries is core parking.

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 07/23/2013 09:33 PM
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stumped
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This only works if your processor cores are being parked...Intel or AMD multi-core processors. It's easy to see ...control panel > action center > view performance information > advanced tools > open resource monitor > click on CPU and on the right side shows your cores and if they are parked..it will say 'parked'.



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Intel I7 960 @ 3.87ghz *Intel DX58SO *HIS HD6970 2gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit ** Toshiba P75-A7200 * Intel I7-4700MQ * Windows 8.1 64bit


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 07/24/2013 01:46 AM
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Mime
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Originally posted by: SteveOx
So pretty much; this software or the idea of Core parking mostly has to do with someone who is running an i3-i7 processor?

The patch is for Bulldozer, only.  If you have some other chip, then I'd stay away from it.

"Core parking" it's self has to do with any CPU that supports a core being placed in the C6 power state.  The only time a core is "parked" is when it's idle, which is a detail that always seems to get left out.  The alternative of a system where cores are shut down at random regardless of whether or not they're in use is amusing, but not very practical. 



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Edited: 07/24/2013 at 02:00 AM by Mime
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