Win32PrioritySeparation

Everything about latency. This section is mainly user/consumer discussion. (Peer-reviewed scientific discussion should go in Laboratory section). Tips, mouse lag, display lag, game engine lag, network lag, whole input lag chain, VSYNC OFF vs VSYNC ON, and more! Input Lag Articles on Blur Busters.
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Re: Win32PrioritySeparation

Post by Chief Blur Buster » 11 Jul 2023, 03:31

Right, it's still being beta tested by a few players AFAIK in the fighting game communities (Street Fighter / Mortal Kombat style esports).
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Coldplayer
Posts: 53
Joined: 23 Jul 2017, 08:19

Re: Win32PrioritySeparation

Post by Coldplayer » 11 Jul 2023, 21:44

Saw there's one hone.gg which previously had some bat file script that looked like it had good tweaks but there's now a premium version which has more tweaks but they don't really say what they are which is a bit suss.

Sandy
Posts: 124
Joined: 30 Mar 2024, 02:14

Re: Win32PrioritySeparation

Post by Sandy » 07 Jul 2024, 13:17

ptuga wrote:
08 Jul 2023, 05:06
This is one of the few tweaks that people do that make a difference. In my experience if you have a week cpu you want short quantum with high foreground priority.
On the other hand if you have a good cpu, long quantum + high foreground is just better.
What other tweaks can really make a difference?

gcs19
Posts: 2
Joined: 17 Mar 2025, 16:34

Latency Win32PrioritySeparation - 3F

Post by gcs19 » 16 Jun 2025, 07:04

Hi everyone,

I managed to solve my input issues thanks to this forum and some of its members. I've never made a post before, but I read a lot of them (probably almost all). This tweak made a big difference for me, and I’d really appreciate it if you could test it and share your results.

⚠️ Note: This is intended only for competitive gaming. It may cause instability. I got this warning from ChatGPT:
Risks or considerations:
While this tweak may reduce input latency in games or improve responsiveness in real-time apps, it can negatively affect:

scheduled tasks

background downloads

multitasking

Open regedit and go to:
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\PriorityControl]
Then change the value of Win32PrioritySeparation to 63 (decimal) or 3F (hexadecimal). No reboot is required for this tweak to take effect.

Other values worth testing:

62 (decimal) – more stable, but still carries a risk of instability

26 (decimal) – completely stable

JimCarry
Posts: 586
Joined: 24 May 2024, 20:01
Location: csgo

Re: Latency Win32PrioritySeparation - 3F

Post by JimCarry » 18 Jun 2025, 00:50

gcs19 wrote:
16 Jun 2025, 07:04
Hi everyone,

I managed to solve my input issues thanks to this forum and some of its members. I've never made a post before, but I read a lot of them (probably almost all). This tweak made a big difference for me, and I’d really appreciate it if you could test it and share your results.

⚠️ Note: This is intended only for competitive gaming. It may cause instability. I got this warning from ChatGPT:
Risks or considerations:
While this tweak may reduce input latency in games or improve responsiveness in real-time apps, it can negatively affect:

scheduled tasks

background downloads

multitasking

Open regedit and go to:
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\PriorityControl]
Then change the value of Win32PrioritySeparation to 63 (decimal) or 3F (hexadecimal). No reboot is required for this tweak to take effect.

Other values worth testing:

62 (decimal) – more stable, but still carries a risk of instability

26 (decimal) – completely stable
hi i think your path is wrong the right one is "\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\PriorityControl",and also i think chatgpt sometimes gives wrong info and this exact values are 100% bs,for example i think the last value is 26 hexa not deci ,and this is what i use,anyway wich one of the 3 you want me to test i will do 2 benchmarks,and share results.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\PriorityControl]
"Win32PrioritySeparation"=dword:0000003e -62 decimal
"Win32PrioritySeparation"=dword:0000001a -26 decimal
"Win32PrioritySeparation"=dword:0000003f -63 decimal

gcs19
Posts: 2
Joined: 17 Mar 2025, 16:34

Re: Latency Win32PrioritySeparation - 3F

Post by gcs19 » 18 Jun 2025, 07:10

JimCarry wrote:
18 Jun 2025, 00:50
gcs19 wrote:
16 Jun 2025, 07:04
Hi everyone,

I managed to solve my input issues thanks to this forum and some of its members. I've never made a post before, but I read a lot of them (probably almost all). This tweak made a big difference for me, and I’d really appreciate it if you could test it and share your results.

⚠️ Note: This is intended only for competitive gaming. It may cause instability. I got this warning from ChatGPT:
Risks or considerations:
While this tweak may reduce input latency in games or improve responsiveness in real-time apps, it can negatively affect:

scheduled tasks

background downloads

multitasking

Open regedit and go to:
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\PriorityControl]
Then change the value of Win32PrioritySeparation to 63 (decimal) or 3F (hexadecimal). No reboot is required for this tweak to take effect.

Other values worth testing:

62 (decimal) – more stable, but still carries a risk of instability

26 (decimal) – completely stable
hi i think your path is wrong the right one is "\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\PriorityControl",and also i think chatgpt sometimes gives wrong info and this exact values are 100% bs,for example i think the last value is 26 hexa not deci ,and this is what i use,anyway wich one of the 3 you want me to test i will do 2 benchmarks,and share results.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\PriorityControl]
"Win32PrioritySeparation"=dword:0000003e -62 decimal
"Win32PrioritySeparation"=dword:0000001a -26 decimal
"Win32PrioritySeparation"=dword:0000003f -63 decimal
Hello, sorry
""Win32PrioritySeparation"=dword:0000003f -63 decimal" is correct

oenay
Posts: 17
Joined: 25 May 2021, 11:05

Re: Win32PrioritySeparation

Post by oenay » 26 Jul 2025, 02:33

You guys really think when the game is smoother your hit reg or recoil is better. I tested a lot, the game is smooth but your hit reg and recoil is weired

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