Soldato
7800X3D igpu below. Nvidia and windows have something funky going on.
4070
4070
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**THE NVIDIA DRIVERS THREAD**
- Thread starter Boomstick777
- Start date
Soldato
Holy crap, RTX-IO... I think this is 1 of the first public showings of it since Nvidia announced it 4 years ago ? Also going to be in the Ratchet and Clank port - https://www.nvidia.com/en-gb/geforce/news/rtx-io-for-geforce-gpus-available-now/
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Man of Honour
RTXIO is just what Nvidia call GPU Compression, it is the same thing and is utilised by DirectStorage in DirectX 12 games. The advantage of RTXIO is that it works on Vulkan/Linux. RTXIO is open source and will work on any GPU.
Soldato
Man of Honour
Well Microsoft only released the API in April/May so it's not really that late to the party since Nvidia have had a large input into the technology.
Soldato
I know but we've only had 1 game with DirectStorage so far which was Forspoken and that didn't use GPU compression so it's quite nice seeing it finally move along instead of being some obscure tech that is shown and never seen again.
Associate
Edit: Didn't notice the 536.67 drivers were out with the DPC fix, installed and without even rebooting there is no more insane spikes 
I'll be glad when they fix this latency issue crap, this is on a 4090 and 5800X3D, can spike just sitting at the desktop doing absolutely nothing. Thankfully this doesn't impact me in any way that I can actually notice, no stuttering issues while gaming at 4K even while streaming 4K YT content or films from my Plex library on another screen. I use bluetooth headphones so no audio issues either, if it wasn't for this tool I would never know about it.
535.98
536.67
I'll be glad when they fix this latency issue crap, this is on a 4090 and 5800X3D, can spike just sitting at the desktop doing absolutely nothing. Thankfully this doesn't impact me in any way that I can actually notice, no stuttering issues while gaming at 4K even while streaming 4K YT content or films from my Plex library on another screen. I use bluetooth headphones so no audio issues either, if it wasn't for this tool I would never know about it.
535.98
536.67
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Soldato
Edit: Didn't notice the 536.67 drivers were out with the DPC fix, installed and without even rebooting there is no more insane spikes
They only implemented a fix for Ampere GPU's according to their own post.
Soldato
Will wait for a few days and more feedback till I commit to this version.
Soldato
I'd love to see actual benchmarks done between the same release of Studio and GRD to see real world differences.
Man of Honour
There won't be any, they're the same driver, studio just undergoes extra testing for stability as they're better supported for production ready applications and environments with the same game ready changes applied.
Man of Honour
Noticed something weird last night which I am assuming was driver related, or maybe it was all those crashes Portal Prelude RTX had and the RTX Remix backend somehow remained active or something, anyway, lots of frametime spikes contributing to around 30-40ms consistent hitches - Not obvious in actual motion as the framerate and pacing was smooth, but when you look at the frametime graph itself it stands out. I think Gsync was taking care of the smoothness otherwise, so it would have been more obvious without it.
I was seeing this in any game I launched as well. Would probably have noticed if RTSS wasn't on at the time.
A Windows reboot sorted it.... One to keep an eye on I guess in case it was driver related. The fact that there is no abnormal CPU thread use, or GPU anomaly seems to hint at a driver bug rather than RTX Remix remaining in the BG, as would have expected to see the extra cores being used by any stuck BG task.
Before reboot:
After reboot:
I was seeing this in any game I launched as well. Would probably have noticed if RTSS wasn't on at the time.
A Windows reboot sorted it.... One to keep an eye on I guess in case it was driver related. The fact that there is no abnormal CPU thread use, or GPU anomaly seems to hint at a driver bug rather than RTX Remix remaining in the BG, as would have expected to see the extra cores being used by any stuck BG task.
Before reboot:
After reboot:
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Man of Honour
RTXIO or DS won't make any difference to DPC latency^^
Soldato
could try turning off high precision timer in bios, guest2 to get that reduced. I think.
WTF is high precision timer? Never turned it on manually so its it on its been by default.
Man of Honour
HPET Settings Clarification | XBitLabs
As explained in this previous article HPET or the High Precision Event Timer is a suboptimal setting if you are trying to get the best FPS stability and the lowest latency/most stable polling rate.
www.xbitlabs.com
Just leave as is and wait for the next driver which hopefully supports 40 series in the fix too.
Also I bet the timer functions have been tweaked as of the latest Windows update which removes the polling issues associated with high end gamig mice under Windows 11 - This was a noted fix for Patch Tuesday just gone specifically noting that high polling rate mouse users can now fully benefit from say 1000Hz mice and reduce stutters in games.
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Soldato
i only mention it cos when i ran that tool on old comp with hpt on it was a high bar but with it off it was lower, tho couldnt tell much diff so put it back on.