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Windows 7: CPU Core parking/performance concerns

22 Aug 2014   #31
Indianatone

Windows 7 x64 Ultimate and numerous virtual machines
 
 

I have 2 AMD FX 8 core machines and they both have the option for min processor, max processor and cooling active. Screenshot:




Attached Thumbnails
CPU Core parking/performance concerns-2014-08-22-21_00_24-cpu-core-parking_performance-concerns-page-3-windows-7-help-forums.png  
My System SpecsSystem Spec
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22 Aug 2014   #32
Indianatone

Windows 7 x64 Ultimate and numerous virtual machines
 
 

And the other one: I have the options in the power settings. I have sabretooth motherboards with 64 bit windows and all drivers installed. I do have both of the updates installed. There are 2 hotfixes.
Microsoft has released two updates that optimize the performance of AMD Bulldozer CPUs on Windows 7-based or Windows Server 2008 R2-based computers.


KB2645594 (install this first)
The CPU scheduling techniques that are used by Windows 7 and Windows Server 2008R2 are not optimized for the AMD Bulldozer module architecture. Therefore, multithreaded workloads may not be optimally distributed on computers that have one of these processors installed in a lightly-threaded environment. This may result in decreased system performance for some applications. When this update is installed, the scheduler will be aware that your Bulldozer processor contains dual-core modules. In essence, threads 1-4 now get assigned to their own module first.


KB2646060 (should only be installed after KB2645594)
The CPU Power Policies that are used by Windows 7 and Windows Server 2008R2 are not optimized for the dual Core AMD Bulldozer module architecture. This can result in decreased system performance with multithreaded workloads in lightly-threaded environments. When this update is installed, Bulldozer modules will be less likely to achieve the C6 power state. This potentially results in increased power consumption in more lightly-threaded environments.


Attached Thumbnails
CPU Core parking/performance concerns-2014-08-22-21_03_04-control-panel_all-control-panel-items_system.png  
My System SpecsSystem Spec
22 Aug 2014   #33
N00berG00ber

Windows 10 Pro
 
 

alright, ive been following this thread for a while. here is my setup. i used this app:

CPU Core Parking

Basically i created 2 power profiles. "Balanced" and "High Performance" in HP mode i made it so that there are always 0 cores parked. In balanced, i made it so that 100% of the core are capable of being parked (only 4 get parked). Then i just switch between the profiles. Without core parking, there is a decent improvement on performance because ALL cores are active and are capable of being used as compared to the cores only un-parking when the other cores are close to 100% usage. Core parking saves power and reduced heat. in my balanced profile, i only allow my CPU to scale to 70% (2.4GHz). In HP, i allow it to scale to 100% (4.4GHz). Both have a minimum value of 0% (allows it to scale to 1.6GHz) and both have "Active" cooling policy.


Ive tried all those hot fixes listed by Microsoft, and they did NOTHING! So thats when i dug a little deeper and found that app. all you have to do install set it up the way you want, restart, and uninstall. its a one time thing.
My System SpecsSystem Spec
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22 Aug 2014   #34
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot
 
 

Quote   Quote: Originally Posted by Indianatone View Post
I have 2 AMD FX 8 core machines and they both have the option for min processor, max processor and cooling active. Screenshot:
Well, now I'm absolutely mystified. I'm going to have to dig into this deeper...
My System SpecsSystem Spec
22 Aug 2014   #35
andrew129260

Windows 10 Pro
 
 

Quote   Quote: Originally Posted by Mellon Head View Post
Quote   Quote: Originally Posted by Indianatone View Post
I have 2 AMD FX 8 core machines and they both have the option for min processor, max processor and cooling active. Screenshot:
Well, now I'm absolutely mystified. I'm going to have to dig into this deeper...
I don't have that option, and I have every driver, chipset, bios up to date.
My System SpecsSystem Spec
22 Aug 2014   #36
Solarstarshines

Windows 10 Home Premium 64bit sp1
 
 

Quote   Quote: Originally Posted by andrew129260 View Post
Quote   Quote: Originally Posted by Mellon Head View Post
Quote   Quote: Originally Posted by Indianatone View Post
I have 2 AMD FX 8 core machines and they both have the option for min processor, max processor and cooling active. Screenshot:
Well, now I'm absolutely mystified. I'm going to have to dig into this deeper...
I don't have that option, and I have every driver, chipset, bios up to date.

He is talking about AMD Overdrive
My System SpecsSystem Spec
23 Aug 2014   #37
andrew129260

Windows 10 Pro
 
 

Looks like power options to me, not overdrive....
My System SpecsSystem Spec
23 Aug 2014   #38
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot
 
 

Quote   Quote: Originally Posted by andrew129260 View Post
I don't have that option, and I have every driver, chipset, bios up to date.
Same here. Everything is up to date.
My System SpecsSystem Spec
23 Aug 2014   #39
Indianatone

Windows 7 x64 Ultimate and numerous virtual machines
 
 

No I don't have AMD overdrive at all. Also have a paid for version of Processor Lasso on both machines too. Using the High Performance settings. I do have 7 Ultimate but don't think its that? The 8320 is overclocked in the bios with the "turbo boost" disabled. No expert here just got the motherboard to clock it without raising voltages. I also have the option to "Change plan options that are not available other than by Admin" available?
My System SpecsSystem Spec
23 Aug 2014   #40
Callender

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
 
 
Process Lasso

I have those options and use Process Lasso with Park Control Built in. I've found that disabling core parking does improve performance but temperatures are higher as a result.

CPU Core parking/performance concerns-power-options.jpg

CPU Core parking/performance concerns-process-lasso-park-control.jpg

Also see the tutorial here: Power Plan Settings - Change

I'm not sure about this but if you can't see the settings try the option in the following screenshot:

CPU Core parking/performance concerns-power-options-2.jpg


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