39 minutes ago, March Hare said:

It doesn't make a lot of sense for VRAM limitations to create artefacts. It suggests a different issue, and any observations about VRAM usage are possibly coincidental.

When you run out of VRAM, the game will usually start stuttering and lagging

True, but nobody reported that issue with the RTX 3090. 

They have to fix this before SU10 release. Interestingly I couldn’t find a thread on it on flight simulator.com => SU10 beta => hardware and peripherals.

No thread = no chance to vote = no chance of getting it bugged-logged. Unless there’s a thread elsewhere. 

3 minutes ago, Cpt_Piett said:

They have to fix this before SU10 release. Interestingly I couldn’t find a thread on it on flight simulator.com => SU10 beta => hardware and peripherals.

No thread = no chance to vote = no chance of getting it bugged-logged. Unless there’s a thread elsewhere. 

This should be the thread: https://forums.flightsimulator.com/t/dx12-issues-weird-graphics-glitches-stutters-in-panning/529129

2 minutes ago, MrFuzzy said:

This should be the thread: https://forums.flightsimulator.com/t/dx12-issues-weird-graphics-glitches-stutters-in-panning/529129

Excellent. Now everyone that has these visual glitches due to runnin* out of VRAM should vote on that thread. 117 votes so far.

This is my first MSFS beta. In addition to voting and commenting in the beta thread, is it adviced to file a zen desk report? 

1 hour ago, MrFuzzy said:

This VRAM issue must be fixed by Asobo, not many people have more than 12 GB of VRAM...

Is the dev mode in MSFS showing allocated VRAM or actual VRAM usage? If the former, it is not a big deal...

16 minutes ago, Cpt_Piett said:

, is it adviced to file a zen desk report? 

I am not sure you should for the beta, as it isn't a formal release.  I think apart from the beta forum for feedback, there may also be an electronic form to fill in to raise an issue. 

On 7/24/2022 at 6:03 AM, Cpt_Piett said:

I ran at locked 30 fps for ages. Now letting fps run unlocked to see how the performance is in the beta. So far so good 🙂

I have the lowly 3080Ti (it was great just a few weeks ago 😳).  I don't think there will be a significant difference as far as VRAM goes but it would be nice to see, or not nice as the case may be:  run unlimited versus Vsync to 30fps and report VRAM use in the same exact scenario if you will please.  I have to wonder if those folks w/ less VRAM now will be better off staying with DX11 for the time being.  And this is the honest truth, thankfully:  I already run everything on Ultra, 8x, 16x and have totally smooth, stutter-free performance.  I can't stand 'blurry' anything so DLSS seems like something I'd not want to trade TSS in for.  So on the surface now as I read thru notes in the thread it seems like SU10 primarily gets more VRAM, greater CPU core distribution, but outside of that--what is the real practical benefit?  Does the sim graphically look much better?  I mean hopefully that's the case because seeing higher reported VRAM use doesn't mean anything more than just that. 

2 hours ago, MrFuzzy said:

This VRAM issue must be fixed by Asobo, not many people have more than 12 GB of VRAM...

Remember P3D v5.0 release?  Same same, and they did something to improve that I believe.

11 minutes ago, Noel said:

I have the lowly 3080Ti (it was great just a few weeks ago 😳).  I don't think there will be a significant difference as far as VRAM goes but it would be nice to see, or not nice as the case may be:  run unlimited versus Vsync to 30fps and report VRAM use in the same exact scenario if you will please.  I have to wonder if those folks w/ less VRAM now will be better off staying with DX11 for the time being.  And this is the honest truth, thankfully:  I already run everything on Ultra, 8x, 16x and have totally smooth, stutter-free performance.  I can't stand 'blurry' anything so DLSS seems like something I'd not want to trade TSS in for.  So on the surface now as I read thru notes in the thread it seems like SU10 primarily gets more VRAM, greater CPU core distribution, but outside of that--what is the real practical benefit?  Does the sim graphically look much better?  I mean hopefully that's the case because seeing higher reported VRAM use doesn't mean anything more than just that. 

I’m happy to test what you mention later today (not sure it was directed to me or more of a general request).

My impression is that SU10 does not bring significant visual improvements. Apart from (perhaps) better cloud rendering (less pixelation/graininess). And perhaps less object shimmering. 

What it brings is the possibility of better performance, both in terms of fps but also in terms of smoothness. Better multithreaded capabilities is huge. DLSS can bring significant performance benefits. For me I’ve definitely experienced the former (I commented on CPU utilization in an earlier post), but not the latter.

There are people with 12GB VRAM and seeing the graphical artefacts when only a fraction of the available VRAM is in use. Seems to me the common element is DX12 when artefacts appear, and while VRAM usage may be increasing for most when experiencing the artefacts, it doesn't indicate a root cause in itself.

 

12 minutes ago, Cpt_Piett said:

I’m happy to test what you mention later today (not sure it was directed to me or more of a general request).

My impression is that SU10 does not bring significant visual improvements. Apart from (perhaps) better cloud rendering (less pixelation/graininess). And perhaps less object shimmering. 

What it brings is the possibility of better performance, both in terms of fps but also in terms of smoothness. Better multithreaded capabilities is huge. DLSS can bring significant performance benefits. For me I’ve definitely experienced the former (I commented on CPU utilization in an earlier post), but not the latter.

This is the funny thing to me:  already have liquid smoothness--but I'm fine w/ solid 30fps and can hardly tell the difference compared to 60fps in this nor P3D back in the day.  I'm happy to see the potential for accessing more VRAM and multithreading even if one isn't after greater FPS that means there is potential to accommodate greater graphical quality if that comes--I hope it does, especially cloud quality rendering.  Thanks for your comments and no worries on the test I don't think it will show anything material anyway.  Here's a comparison I did a while back demonstrating unlocked versus vsync to 30:  while you get greater frame rates, you increase GPU utilization and double CPU use just to get 11 more frames over 30, and VRAM utilization was the same:

Edited July 25, 20223 yr by Noel

6 minutes ago, March Hare said:

There are people with 12GB VRAM and seeing the graphical artefacts when only a fraction of the available VRAM is in use. Seems to me the common element is DX12 when artefacts appear, and while VRAM usage may be increasing for most when experiencing the artefacts, it doesn't indicate a root cause in itself.

Plus...I have to think Asobo isn't all done with optimizing DX12 it's a bit early IOW to draw conclusions. 

2 minutes ago, Noel said:

Plus...I have to think Asobo isn't all done with optimizing DX12 it's a bit early IOW to draw conclusions. 

True. I haven’t had the time to read through the visual glitches thread that was suggested. But it’s still early stages of testing, and several weeks until the expected release (Aug 23 I think I read somewhere). 

In terms of locking to 30, it makes great sense for a number of reasons. I’d be happy to test hardware usage as it’s an interesting topic.

At the moment I have to either adjust the fan profile or return to 30 locked, as the fans are so loud that they can be heard even with the aircraft engines blasting through my speakers…

19 minutes ago, Noel said:

Plus...I have to think Asobo isn't all done with optimizing DX12 it's a bit early IOW to draw conclusions. 

Exactly. They are far from finished implementing DX12, even with SU10.

With enough system and other information from users, they can hopefully recreate the glitches on their machines, and at that point they can "step into" those moments in a debugger and find out the actual cause. Something we can't do from our armchairs, looking at statistics alone.

The VRAM usage and artifacts in DX12 is a GPU scheduler/paging issue.  I saw the same thing when XP first went to Vulkan.  LR tweaked the GPU scheduler over the next few updates and sorted the issue for all intents and purposes.  Asobo will need to do the same.

XP 11.50 Dev Preview 11 - XPD-10465 VRAM usage is inefficient under heavy pressure.

XP 11.50 Beta 7 - Updated VRAM profiler. Improved texture pager again.

XP 11.50 Beta 11 - XPD-10717 Made more objects pageable to help with VRAM usage

I've gone back to DX11 for the time being (3080ti).  I had lowered Texture Resolution to High using DX12 which I thought worked but it was just location and aircraft dependent.  Using Fenix at a heavy third-party airport and I would get artifacts even with Texture Resolution to low.

This is 100% a VRAM GPU scheduler/paging issue which is why the 3090 people are not experiencing the issue.