Hunting for the stutter-free VR experience.

[Panzerlang]

37 minutes ago, Wali763 said:

I havnt read through all the thread, but what Im missing is the ground level, that participant consent on, for discussion. 

What is "stutter", was is "smooth"?? This is very subjective and many people consider someting smooth, that I do not eg.

Ive be striving for smooth gameplay on my G2 ever since I had the RX6950XT. Starting from then, I tried to get to 90fps and accepted lowering the graphical settings for that.

Now I have a 4090 and a 7800x3D and am close to that goal or at least within my acceptable range.

I tried many thing suggested and many did not work for me. Overall I have a rather clean install of Win10 with many services disabled. As of writing this I have 2 main process (Browser, Taskmanager to check) and 41 background processes running.

One thing, that reduced some of the spikes in the chart below was, setting my DDR5-6000-CL30-36-36 RAM to tightest timings in my UEFI (MSI MB). 

One thing, that I cant follow is the discussion over imput lag. The offerings like Nvidia Reflex are meant for gamers in fast paced games like online Firstpersonshooters, where you usually have 300+fps. DCS is too low fps for that and also our input dont need that precise as in mentioned shooters.

Latency overall, as mentioned above with my thigher RAM-timings still does to have some impact.

Below is a a fps and frametime-chart from Afterburner for an ~15 minute mission in an remote area of Iraq. As you can see fps is almost all the time at 90, sometimes 89. Frametimes at 11, somtimes spiking up to 35ms. This spikes occur usually, when someting happens, like an explosion. For every even minor spike I get a perceivable stutter, so to me this is not sutterfree. But within my personal exaptable range. The huge spikes at the beginnng and the end are of course because of loading the mission and closing it.

It would be nice if other people could also show such a chart of their own, so I and we can understand better, what those player mean.

 

I covered my definition in this video (posted in this thread a few days ago). 
 

 

[Aapje]

1 hour ago, Wali763 said:

One thing, that I cant follow is the discussion over imput lag. The offerings like Nvidia Reflex are meant for gamers in fast paced games like online Firstpersonshooters, where you usually have 300+fps. DCS is too low fps for that and also our input dont need that precise as in mentioned shooters.

First of all, I think that you are severely overestimating how many FPS shooters run at 300+ FPS. I'm pretty sure that a minority of people who play those games even have a 300+ FPS monitor/TV, and even then they may choose eye candy over maxxing FPS.

Secondly, testing shows that Reflex works better if the frame rate is lower:

 

 

[WipeUout]

3 hours ago, Wali763 said:

It would be nice if other people could also show such a chart of their own, so I and we can understand better, what those player mean.

 

Monitoring GPU and CPU frametime may not always show stutters.  I had instances where my frame times were well below the equivalent FPS threshold and still experienced stutters caused by bogged down single processor thread.  I see same stutters also as you mention when starting/stopping the sim, when explosions occurs or even when messages are played, this is part of the performance baseline.

As far as stutters, big or small, I think it is pretty much easy to spot and common understanding.  The video is either fluid or not.  The intensity, duration, frequency of the stutter can vary a lot but the fluidity of the video rendering is broken and easy to see.

Stutters are caused either because you are pushing the hardware too much or because something is stealing CPU cycles from you.

[Moxica]

3 hours ago, WipeUout said:

Monitoring GPU and CPU frametime may not always show stutters.  I had instances where my frame times were well below the equivalent FPS threshold and still experienced stutters caused by bogged down single processor thread.  I see same stutters also as you mention when starting/stopping the sim, when explosions occurs or even when messages are played, this is part of the performance baseline.

As far as stutters, big or small, I think it is pretty much easy to spot and common understanding.  The video is either fluid or not.  The intensity, duration, frequency of the stutter can vary a lot but the fluidity of the video rendering is broken and easy to see.

Stutters are caused either because you are pushing the hardware too much or because something is stealing CPU cycles from you.

I have a lot to go on; I just activated MSAA and changed visible range to ekstreme. Just as fluid as before,  but in-cockpit microstutter remain the same.

Edited January 15 by Moxica

[ischicopter]

Have you tried Vsync "fast" mode in NVCP + OXTK Turbo mode? The Vsync fast option fixed a stutter I had in MSFS

[aLoneIceburg]

On 12/11/2024 at 12:25 PM, av8orDave said:

I love the thread title. In my experience, "Hunting for the stutter-free VR experience" in DCS is akin to hunting for bigfoot. Sure, you might be able to find some evidence that it exists, but it is scant, poorly documented, sometimes appears doctored, and the overwhelming majority of evidence would incline one to believe it is a myth.

Best response to VR troubleshooting ever