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Creators Update Game Mode reduces input lag
Posted: 03 May 2017, 14:15
by swarna
https://youtu.be/mVNRNOcLUuA?t=8m54s
System-wide option enabled <=> reduced input lag.
Per-game option via game bar has no effect on input lag, seems to just additionally apply a one-size-fits-all work distribution pattern across your cores which is hit-or-miss for performance improvements depending on the game.
Re: Creators Update Game Mode reduces input lag
Posted: 03 May 2017, 22:06
by Chief Blur Buster
swarna wrote:https://youtu.be/mVNRNOcLUuA?t=8m54s
System-wide option enabled <=> reduced input lag.
Per-game option via game bar has no effect on input lag, seems to just additionally apply a one-size-fits-all work distribution pattern across your cores which is hit-or-miss for performance improvements depending on the game.
Thanks for posting this!
We will need to do some lag tests about this, to see how well this works!
Re: Creators Update Game Mode reduces input lag
Posted: 04 May 2017, 02:04
by lexlazootin
We need a before and after, it could be very much the same as before the update and just gimping the "Off" option.
I saw on a linus tech video that the minimum framerates were worse with game mode on. Overall it seams like a very weird setting.
Re: Creators Update Game Mode reduces input lag
Posted: 04 May 2017, 04:22
by urut
lexlazootin wrote:We need a before and after, it could be very much the same as before the update and just gimping the "Off" option.
I saw on a linus tech video that the minimum framerates were worse with game mode on. Overall it seams like a very weird setting.
Linus activated the game mode inside the windows settings and the game bar.
I only activated it inside the windows settings and left it off in the game bar. This still lead to a delay decrease why my FPS did not change at all.
#Comment of author of this video
Re: Creators Update Game Mode reduces input lag
Posted: 04 May 2017, 04:48
by KevOW
Is it worth upgrading from Windows 7? I downgraded after 4 months of trying to reduce to the very least I could, but Windows 7 still came out on top after disabling all the worthless junk (looking at you Cortana).
Re: Creators Update Game Mode reduces input lag
Posted: 04 May 2017, 06:13
by Glide
I would have expected this to be caused by the new fullscreen presentation mode rather than game mode specifically.
Unless games which are not on Microsoft's whitelist for the new presentation mode also see that reduction in latency? (screen will flash twice when you hit Win+G in FSE Mode)
KevOW wrote:Is it worth upgrading from Windows 7? I downgraded after 4 months of trying to reduce to the very least I could, but Windows 7 still came out on top after disabling all the worthless junk (looking at you Cortana).
As I understood it, the Windows Search process is just called "Cortana" now.
Code: Select all
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Windows Search]
"AllowCortana"=dword:00000000
Save that as a .reg file and run it.
This registry change should disable the Cortana functionality that runs on top of Windows search - but you'll still see the "Cortana" (search) process running.
Re: Creators Update Game Mode reduces input lag
Posted: 04 May 2017, 10:36
by mello
It would be nice to see input lag tests between Windows 7 and Game Mode in Windows 10 Creators Update.
If there would be a singificant difference i might consider switching to Win10 in the near future =)
Re: Creators Update Game Mode reduces input lag
Posted: 04 May 2017, 20:44
by KevOW
Glide wrote:I would have expected this to be caused by the new fullscreen presentation mode rather than game mode specifically.
Unless games which are not on Microsoft's whitelist for the new presentation mode also see that reduction in latency? (screen will flash twice when you hit Win+G in FSE Mode)
KevOW wrote:Is it worth upgrading from Windows 7? I downgraded after 4 months of trying to reduce to the very least I could, but Windows 7 still came out on top after disabling all the worthless junk (looking at you Cortana).
As I understood it, the Windows Search process is just called "Cortana" now.
Code: Select all
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Windows Search]
"AllowCortana"=dword:00000000
Save that as a .reg file and run it.
This registry change should disable the Cortana functionality that runs on top of Windows search - but you'll still see the "Cortana" (search) process running.
That's only one of the many bloatwares in W10 ;/
Re: Creators Update Game Mode reduces input lag
Posted: 06 May 2017, 06:26
by mello
Slightly off topic question, but still inspired by this video, has anyone ever tested how different PC components affect input lag ? What i mean is, for example changing only 1 variable in the build, like ram (from 1600 to 2400 to 3200), just a mobo or a sound card and measuring the difference in input lag.
Is it even worth to look for best compatible pc components in search for lowest input lag possible ?
Not sure if i ever seen such a tests, maybe the difference would be negligable ?
Re: Creators Update Game Mode reduces input lag
Posted: 06 May 2017, 10:32
by jorimt
mello wrote:Is it even worth to look for best compatible pc components in search for lowest input lag possible ?
A more powerful system is going to have lower input latency by nature of being more efficient/consistent at delivering frames than a weaker system, bottom-line.
All components in a PC work together to deliver a single complete frame to the display one by one, and while any component can be a weak link, a big one is the CPU, as it's is responsible for handing off frames to the GPU, and then the GPU to the display.
A weak CPU (as well as GPU) can cause more frametime spikes, which interrupts/delays delivery of frames to the display. The more often this delivery chain is interrupted/slowed, the more input latency you have over a period of frames.
A stronger system is going to have less spikes (CPU generally), faster rendering of frames (GPU able to reach and maintain higher framerates, which equals lower frametimes, which equals faster delivery to the display).
The actual subject is much more complex, and I'm simplifying to the extreme, and this isn't even mentioning OS, games, or syncing methods' impact on input latency, but that's the basic idea at the hardware-level.