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Ongoing Pascal latency problems - Hotfix doesn't work for everyone. - Page 46

post #451 of 1679
Quote:
Originally Posted by Farih View Post

Grats !

You won the Nvidia coffee mug (claim at NV, not me)

Thx

I have contacted Nv my mug is on the way thumb.gif

they have all-so stated the competition will be running for some time as there unsure when exactly this DPC issue will be fixed but they did at least say we have this free competition so that's good isn't it ???? tongue.gif
post #452 of 1679
Quote:
because the only way to force your entire system to use the more efficient TSC is to disable HPET entirely.
are you sure because Ive read that Win10 will use the more modern systems like TSC instead of HPET anyway on its own, even if HPET is enabled in BIOS
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post #453 of 1679
Is DPC really an issue or more a Placebo?

Only if it's a resource that needs accessing is it an issue maybe?




I can't imagine everything at or under 50us like I see some have. All my rigs are huge, comparatively speaking.

I guess I've never ran into latency issues inherent to the operation of the OS drivers to an extent to warrant inquiry.

Would some say my reported numbers are just fine?

When does it truly create an issue?
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post #454 of 1679
Quote:
Originally Posted by ChevChelios View Post

are you sure because Ive read that Win10 will use the more modern systems like TSC instead of HPET anyway on its own, even if HPET is enabled in BIOS

TSC is 4 times older than HPET, so yes, applications will try to use HPET unless it's disabled, if you have HPET enabled in Windows and BIOS then TSC will be disabled and no application will ever use it, if you have it ON in BIOS and OFF in Windows then the applications will use whichever the developer wants, if HPET is disabled in BIOS and Windows then everything goes through the more efficient TSC.

Although TSC is more efficient and process everything as soon as possible, HPET works more like Vsync ON always trying to synchronize all interrupts, delaying those that would otherwise be completed in 1/20 the time in order to balance them all out, while TSC is VSYNC off for timers (they're not related to Vsync just a comparison) and always tries to resolve every ISR and DPC command as soon as physicially possible, because of this there will be stuttering when the system is suffering from DPC issues.

HPET ON might actually mask underlaying ISR Commands and DPC Interrupts issues but with a responsiveness penalty.

If your PC is optimized and have no interrupt problems then TSC is the way to go, it makes everything better, but if you have tons of DPC latency issues or ISR interrupts then TSC will increase the stuttering because of the low and spikes while HPET will even them out.

You should not have a need for HPET on Consumer PCs, and you should also not have DPC Latency and/or ISR interrupt issues.

HPET is a bandaid that comes with a huge penalty and the issue this bandaid relieve will still be there, it's better off to not suffer this bandaid side effects and have the issues fixed, as with everything.
Quote:
Originally Posted by rx7racer View Post

Is DPC really an issue or more a Placebo?

Only if it's a resource that needs accessing is it an issue maybe?




I can't imagine everything at or under 50us like I see some have. All my rigs are huge, comparatively speaking.

I guess I've never ran into latency issues inherent to the operation of the OS drivers to an extent to warrant inquiry.

Would some say my reported numbers are just fine?

When does it truly create an issue?

Your reported numbers are terrible. I stay under 7us at idle most of the time with my AMD card, 32us at MAX LOADS.

With my 1070 I stay below 50us after optimizing my machine, and below 75us at max load which is enough to offset the uber terrible Nvidia DPC mess up.

The microstuttering will be there whether you notice it or not, the audio issues will not show until you reach a certain threshold and then it depends on what Frequency (24 Bits 48000Hz) are you listening and what ASIO buffer you have, what Bitrate it plays, the lower the frequency the higher the Interrupt issues you need to affect it, the lower the buffer the easier for this issue to affect you the higher the Bitrate....

And then there is mouse movement, try playing a YouTube video at 60 FPS 1440p and I will bet that even if you've never played a game in your life you will feel the change (for the worse) on your mouse responsiveness with those DPC numbers.
Edited by Dargonplay - 7/18/16 at 2:08pm
post #455 of 1679
I want to thank everybody for all the help. I have no more stuttering in VR. I am not sure if I have latency. Did not noticed anything but still it hovers around 500-1000us. I hope Nvidia can fix that.
post #456 of 1679
Quote:
Originally Posted by Sele1981 View Post

Do you mean Bios Update for the graphics card? Because I doubt my 2 year old Mainboard will get any Bios updates anymore.



By latency problems, I need very low latency times because I play racing simulations and need quick reaction times. I see this looks like an Nvidia problem in general? Should I switch to AMD?

DPC latency is not really the same thing as input lag. You should look for information on input lag
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post #457 of 1679
if you have stutter nvidia recommends a geforce gtx drink mixed with 200ml of vodka



your stutter should go away for a while
post #458 of 1679
Quote:
Originally Posted by Dargonplay View Post


With my 1070 I stay below 50us after optimizing my machine, and below 75us at max load which is enough to offset the uber terrible Nvidia DPC mess up.

The microstuttering will be there whether you notice it or not, the audio issues will not show until you reach a certain threshold and then it depends on what Frequency (24 Bits 48000Hz) are you listening and what ASIO buffer you have, what Bitrate it plays, the lower the frequency the higher the Interrupt issues you need to affect it, the lower the buffer the easier for this issue to affect you the higher the Bitrate....

And then there is mouse movement, try playing a YouTube video at 60 FPS 1440p and I will bet that even if you've never played a game in your life you will feel the change (for the worse) on your mouse responsiveness with those DPC numbers.

I've been playing games competitively for over a decade and I haven't noticed any micro stutters at all. I have acknowledged the problem previously in this thread, but either you have other issues with your PC or you're exaggerating the issue tremendously based on my own experience with the 1070. That's not to say you haven't recieved a monday sample, because that's always a possibility.

Downplaying the issue, or exaggerating it is just as unnecessary and leads nowhere IMO.

What kind of optimisations did you do? I found turning off the C-state options in bios, maximum performance in the Nvidia settings and picking high performance in windows solved most of it, but changing PCI-E slot just to test if there is any issues, or better yet try another motherboard if available is also something folks should consider. I've been running latencymon idle for hours now with out any issues after the above mentioned tweaks, and it's smooth as butter in games.
post #459 of 1679
Quote:
Originally Posted by Pragmatist View Post

I've been playing games competitively for over a decade and I haven't noticed any micro stutters at all. I have acknowledged the problem previously in this thread, but either you have other issues with your PC or you're exaggerating the issue tremendously based on my own experience with the 1070. That's not to say you haven't recieved a monday sample, because that's always a possibility.

Downplaying the issue, or exaggerating it is just as unnecessary and leads nowhere IMO.

What kind of optimisations did you do? I found turning off the C-state options in bios, maximum performance in the Nvidia settings and picking high performance in windows solved most of it, but changing PCI-E slot just to test if there is any issues, or better yet try another motherboard if available is also something folks should consider. I've been running latencymon idle for hours now with out any issues after the above mentioned tweaks, and it's smooth as butter in games.

Then you are actively misreading.

I have said I don't have this issue anymore after actively optimizing my system, how is that exaggerating the problem? Anyone suffering from it can fix it. I did had microstuttering before, microstuttering that I didn't had on the same system with my 290, the extra Nvidia 100+us spikes were to blame, reducing the overall DPC average did offset Nvidia's issue.

Follow R0ach's and Cookieboyeli's guide to optimize your system, they go into a lot of details.
post #460 of 1679
WhUuWNX.png
Do I win highest latency?


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