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Windows 10 System Gaming Responsiveness Tweak?

post #1 of 5
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Windows 10 System Gaming Responsiveness Tweak?
Quote:
Multimedia streaming and some games that uses “Multimedia Class Scheduler” service (MMCSS) can only utilize up to 80% of the CPU. The “Multimedia Class Scheduler” service (MMCSS) ensures prioritized access to CPU resources, without denying CPU resources to lower-priority background applications.

To implement this tweak, run regedit and modify the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile. From there, create a new DWORD and name it to “SystemResponsiveness” set its hexadecimal value to 00000000 for pure gaming/streaming.

In the same Registry hive as the above tweak, you can also change the priority of Games.
To implement this tweak, go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows
NT\CurrentVersion\Multimedia\SystemProfile\Tasks\Games and change the following registry values:

1) “GPU Priority” change its values to 8 for gaming.
2) “Priority” set to 6 for gaming.

SOURCE
Edited by BradleyW - 2/1/16 at 5:57pm
X79-GCN
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X79-GCN
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CPUMotherboardGraphicsRAM
Intel 3930K 4.5GHz HT GIGABYTE GA-X79-UP4 AMD R9-290X GEil Evo Potenza DDR3 2400MHz CL10 (4x4GB) 
Hard DriveCoolingCoolingCooling
Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
CoolingCoolingCoolingCooling
XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
CoolingCoolingCoolingOS
EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
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post #2 of 5
Does anyone know if this works.
    
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Athlon II X4 640 Biostar N68s3+ Gtx 660 Gskill Sniper F3-10666CL9 GSBR 8gig(2x4) 
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idk low mem idk pretty bad idle around 45c, max 60c. got 2 ... PSU: RX 530ss 
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post #3 of 5
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My System
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FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
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2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
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post #4 of 5

Would be interesting to get some game benches at some point as well, though I would not expect significant gains with this tweak enabled. Perhaps some gains i particular situations but nothing astounding.

post #5 of 5
There is some confusion regarding the actual values. Some think the value of 1 is the highest while other think that anything higher then 1 is.


Per MS article, at least for "Priority" 1 is low and 8 is high.
Its not fully clear how to interpret GPU Priority as the values go from 0-31 which seems a bit erroneous for a specific target value.
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