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Ongoing Pascal latency problems - Hotfix doesn't work for everyone. - Page 8

post #71 of 1679
Quote:
Originally Posted by BradleyW View Post

High DPC has been reported on Nvidia GPU / Drivers for a few years now. It's the reason why I don't want to purchase an Nvidia card, and their inflated pricing.

Has been my highest latency for many years for me to
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post #72 of 1679
Quote:
Originally Posted by Liranan View Post

Not at all. The only time I get serious stutter is in Witcher 3 when the game has to load an area into RAM or VRAM. I have the game on SSD but it still stutters like crazy for a while. This is easily solved by restarting the game so I blame the game and not the drivers as the game has some seriously weird bugs. Earlier I was flying with Roach, too bad I didn't think to take a screenshot.
This is the EKG result of my PC in a Witcher 3 run I just did, can't see it really slowing down or stuttering anywhere, three or four 36ms frametime spikes probably related to what you described, loading a new area, although I haven't observed it in the gameplay and they're not reflected in fps record. Other than that above 100 fps all the time, with a single 1080 @1440p, mixed ultra/high settings and hairworks off, frametimes around 9-11 ms (no joke intended) and pretty sure a smoother experience than I had in this game on 980Ti due to higher fps.



Only way I see my PC stutter anywhere (games,videos,programs etc) is in Arkham Knight, but you know.....
Edited by Klocek001 - 7/12/16 at 9:08am
post #73 of 1679
Quote:
Originally Posted by Liranan View Post

Is this tool only for NVidia or does it work for AMD cards as well? I just checked and I'm getting a solid 1000 with my 290. I am using Win 8.1 with the program set to compatibility with 7.

I have a 290X and my DPC latency have been extremely low and estable after disabling HPET on BIOS, additionally try to have the least possible background processes, it's important to disable the scheduled defrag tool, have your system set for high performance on Power settings and remember to also disable HPET in Windows if you have enabled it before.

If you run WinSat (Windows benchmark basically) before having any Drivers for your GPU or you have changed hardware ever since you installed Windows 7/8/10 then you might need to run this again, it runs automatically the first time you install windows at the initial screen when it says "we're getting things ready for you"

Things like Network stacks and Anti Viruses are DPC lag fests, I have dealt with every single source of DPC delays and I still get huge readings with my 1070, I'm seriously considering using my 290X while Nvidia fix this because my 290X gets 1/5 as much DPC latency while under load.
Quote:
Originally Posted by mothergoose729 View Post

I haven't noticed anything like this with my GTX 1080. One thing I do in the drivers though is enforce CPU preorendering of 2 frames globally, instead of the default 1. I don't know if this has an effect or not, but all of my games feel pretty smooth.

That will mask any stuttering you might be having and will definitely make things smoother at the cost of a huge amount of extra input lag.
Edited by Dargonplay - 7/12/16 at 9:31am
post #74 of 1679
I had some stuttering when I was first testing my 1080 with the air cooler on it, after I put it under water it seemed to go away, havn't noticed it since.
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post #75 of 1679
Good news for those that do have the issue.

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post #76 of 1679
unpossible nvidia are perfect
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post #77 of 1679
Quote:
Originally Posted by Dargonplay View Post

I have a 290X and my DPC latency have been extremely low and estable after disabling HPET on BIOS, additionally try to have the least possible background processes, it's important to disable the scheduled defrag tool, have your system set for high performance on Power settings and remember to also disable HPET in Windows if you have enabled it before.

If you run WinSat (Windows benchmark basically) before having any Drivers for your GPU or you have changed hardware ever since you installed Windows 7/8/10 then you might need to run this again, it runs automatically the first time you install windows at the initial screen when it says "we're getting things ready for you"

Things like Network stacks and Anti Viruses are DPC lag fests, I have dealt with every single source of DPC delays and I still get huge readings with my 1070, I'm seriously considering using my 290X while Nvidia fix this because my 290X gets 1/5 as much DPC latency while under load.
That will mask any stuttering you might be having and will definitely make things smoother at the cost of a huge amount of extra input lag.

I am not sensitive to input lag, but I am really sensitive to frame stuttering. I play casually and use a game pad, so it works for me thumb.gif .
post #78 of 1679
Thread Starter 
Keeping my fingers crossed
post #79 of 1679
I just put DPC Latency Checker on to my desktop. Horrible ~4000+ us latencies, then i see that those "red peaks" comes mostly only after couple seconds...hmm...

Then i shut down my HWInfo64 (newest beta v5.32-2900) sensors reading "page", and all my latencies was gone. After closing that program all DPC readings are green/some yellow peaks, max now 1148 us. Earlier with HWInfo peaks were over 48xx us.

So at least here on my GTX 1080 (368.69 WHQL) combo those high red spikes on DPC latency checker app was caused by HWInfo.

Sry my bad english, some one could info on that my find to nVidia?

Edit. I also has all-time MSI afterburner ON, so its also reads all kind of things to my OSD, but it wont raise anything on DPC.

Edit2. i now closed MSI afterburner and started HWInfo again, and..well.. those red spikes/Latencies are back. So, on here, HWInfo causes those Red Spikes (4000 us...) on my PC.
Edited by Hiikeri - 7/12/16 at 2:03pm
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post #80 of 1679
Quote:
Originally Posted by Hiikeri View Post

Then i shut down my HWInfo64 (newest beta v5.32-2900) sensors reading "page", and all my latencies was gone. After closing that program all DPC readings are green/some yellow peaks, max now 1148 us. Earlier with HWInfo peaks were over 48xx us.

So at least here on my GTX 1080 (368.69 WHQL) combo those high red spikes on DPC latency checker app was caused by HWInfo.

Almost anything that polls a large number of sensors at frequent intervals is going to result in large DPC latency spikes.
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