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Re: Nvidia acknowledged DPC latency issue - help me with your results

Posted: 21 May 2023, 08:27
by Tiberiusmoon
Yeah, powersaving increases latency.

When you enable maximum power mode in GPU settings it decreases a lot.

Image

Its why I use normal over saving mode in global and max for individual games.

Re: Nvidia acknowledged DPC latency issue - help me with your results

Posted: 22 May 2023, 01:10
by rvteen
Tiberiusmoon wrote:
21 May 2023, 08:27
Yeah, powersaving increases latency.

When you enable maximum power mode in GPU settings it decreases a lot.

Image

Its why I use normal over saving mode in global and max for individual games.
not useful for me,i tried everything

Re: Nvidia acknowledged DPC latency issue - help me with your results

Posted: 22 May 2023, 04:16
by bumbeen
rvteen wrote:
22 May 2023, 01:10
Tiberiusmoon wrote:
21 May 2023, 08:27
Yeah, powersaving increases latency.

When you enable maximum power mode in GPU settings it decreases a lot.

Image

Its why I use normal over saving mode in global and max for individual games.
not useful for me,i tried everything
Did you try running a game in windowed mode in the background?

Re: Nvidia acknowledged DPC latency issue - help me with your results

Posted: 23 May 2023, 20:01
by sherifmagdy32
I have Firefox opened have multiple tabs and watching twitch streams
and gpu on idle

Re: Nvidia acknowledged DPC latency issue - help me with your results

Posted: 24 May 2023, 00:24
by Slender
sherifmagdy32 wrote:
23 May 2023, 20:01
I have Firefox opened have multiple tabs and watching twitch streams
and gpu on idle
you have very very big latency with your usb controller.

Re: Nvidia acknowledged DPC latency issue - help me with your results

Posted: 26 May 2023, 18:24
by empleat
They did now? :D Well but they won't fix it anyways, maybe in 2 years or so, when rolling some new drivers or something... NVCleanInstall from techpowerup (USE DDU in safe mode and made system backup before installing) could help some, although this sounds pretty serious! Also here you have second thread might want to check this out (for running GPU at P0 state, probably want to undervolt for that also if you decide to run it like this 24/7): viewtopic.php?f=10&t=11445. There is utility to switch this on/off, but you need to restart PC I think so it cannot be dynamically used per game etc. https://github.com/auraside/HoneCtrl, also you can enable in bios some 24-119 entries or how it called! Try MSI-X on off, or tweaking related settings, or bios settings! Probably won't help, but it is worth as shot, since who knows what this issue is caused by! And if it is interrupt related, also you can use intel affinity tool and put your GPU maybe to more CPU cores, it won't help probably with lower DPC latency much, could help bit! Don't forget to use ultimate power plan with disable idle saver and 0.5ms timer resolution! Or try different timers Windows uses... These are longshot at best... Also lowering overall DPC latency and disabling C-states, speed-step etc. in BIOS could mitigate overall issues with DPC latency, if you have it from other sources: it can exacerbate problem! You can check my guide for optimizing it in my signature below, all I talk about here in my guide... Overclocking CPU and RAM also can't hurt! And make sure you use GPU scaling override settings of PC games for better fps and consistency (but has slightly higher input lag, but it is worth it)!

Re: Nvidia acknowledged DPC latency issue - help me with your results

Posted: 28 May 2023, 23:30
by sherifmagdy32
Slender wrote:
24 May 2023, 00:24
sherifmagdy32 wrote:
23 May 2023, 20:01
I have Firefox opened have multiple tabs and watching twitch streams
and gpu on idle
you have very very big latency with your usb controller.
Well the mouse is running at 8K pooling rate probably the reason
and this is not high it used to be so far worse took me a lot of time
to tweak the system to this level and loving it right now very consistent.

if you have any suggestions that might help feel free to let me know

Re: Nvidia acknowledged DPC latency issue - help me with your results

Posted: 21 Nov 2023, 11:18
by RealNC
I believe this has been fixed now a couple driver releases ago?

Re: Nvidia acknowledged DPC latency issue - help me with your results

Posted: 22 Nov 2023, 19:43
by Slender
RealNC wrote:
21 Nov 2023, 11:18
I believe this has been fixed now a couple driver releases ago?
it not instant spikes to 130-220 dpc anymore, but it not better then old driver like 472.12.