What about core / thread usage in this driver?

With DX12 and DLSS on, I'm getting only 4 threads on my CPU being used, the 20 other threads are just hanging out. Seems like there could be some optimization there. 🤔

6 minutes ago, Republic3D said:

What about core / thread usage in this driver?

With DX12 all the cores/threads on my 12900KF are used. Been running the sim for 3 hrs now and this is what HWiNFO reports (SU11 beta): 

Edited October 13, 20223 yr by Cpt_Piett

1 hour ago, Cpt_Piett said:

With DX12 all the cores/threads on my 12900KF are used. Been running the sim for 3 hrs now and this is what HWiNFO reports (SU11 beta): 

 

Thanks!

I think I need to recheck it with HWiNFO like you did. 
Are you on Windows 11 btw? I think Win 11 has built in features to better utilize the 12000 series.

I have a 1070, and the new Nvidia driver did improve smoothness in DX12 for me. I was previously getting about the same FPS in both DX11 and DX12, but DX11 was smoother for me. Now, however, DX12 is smoother than DX11. Again, no big change in FPS, but DX12 is now my preference over DX11.

1 minute ago, David Mills said:

I have a 1070, and the new Nvidia driver did improve smoothness in DX12 for me. I was previously getting about the same FPS in both DX11 and DX12, but DX11 was smoother for me. Now, however, DX12 is smoother than DX11. Again, no big change in FPS, but DX12 is now my preference over DX11.

Are you able to fly into big airports like Vienna without a Fps drop? I have a 3080 10Gb and my Fps are dropping from 35 to 15 while approaching. Always when VRAM is maxed out. 

Well, I just took 8 screen shots with RTSS on screen. Sitting at a gate at Flytampa CYYZ in the FBW with a preset .pln so each scene was identical. 4 shots with DX11 and 4 with DX12. 4 with the previous Nvidia Driver and 4 with this new one. 4 flight deck shots and 4 exterior view. There wasn't a hill of bean difference in appearance or FPS. 99% of what nvidia says is pure HYPE! Also I looked at the difference between DLSS and TAA and TAA is very clearly much better than DLSS. Don't forget we have our noses hard up against Moore's Law so you'd have to wonder where all these amazing improvements are coming from. Perhaps the emperor has no cloths. Just sayin' 😁

Edited October 13, 20223 yr by FBW737

I did a test leg from Edinburgh - Ibiza this morning in the PMDG with DX12 and now on the return leg this time with DX11. I don't know what they have done under the hood but the sim is noticeably smoother, especially on the ground. I lock at 50fps anyway so cannot tell if there was an increase in fps but for me it is also a much better experience than with the previous driver in both DX11 & DX12. I am not 100% sold on DX12 just yet, I still feel DX11 yields a much nicer image.

Edited October 13, 20223 yr by RJC68

32 minutes ago, Republic3D said:

Thanks!

I think I need to recheck it with HWiNFO like you did. 
Are you on Windows 11 btw? I think Win 11 has built in features to better utilize the 12000 series.

Make sure you have the latest version of HWiNFO. And check "core utility", as "core load" (I think it's called that) is highly inaccurate. With the utility values, the maximum will reach 153% due to the turbo boost kicking in. 

I'm in Win11. It's supposed to have a better thread director for 12th gen. 

4 hours ago, cianpars said:

As a low & slow flyer, the higher TLOD is a big advantage.  The fields look so much better and the roads and railway lines stand out much more clearly.  Probably of less interest to those who like flying at 35k feet.

hmm, I may be the only one around here not obsessed with max LOD even though I normally don't fly higher than 10.000 ft. just as in my real world GA flying, I was busy enough with everything else but identifying railways, roads etc. in the far distance. haze, weather, other traffic, obstacles, restricted areas and military high speed training areas kept me busy enough.

DLSS Quality mode, as fuzzy as it is in parts of a glass panel instrument, affects only small portions of the speed and altitude tapes when they are moving fast. in normal straight & level flight they don't bother me. that is yet another benefit of VR headsets: you can move your head forward to zoom in closer to the fine print.

tl;dr: best experience since FS2

Nvidia 522.25 + SU11 beta + DX12 + RTX 3090 + [email protected] GHz:

CPU core 0 and GPU finally mostly 90-98 % load, before 40-50%, DLSS Quality mode, smooth 45 fps @ mostly Ultra, LOD 100 - VR HP Reverb G2, without FSLTL.

1 hour ago, RJC68 said:

I still feel DX11 yields a much nicer image.

agreed. just like tube amplifiers with gold plated connectors sound better than solid state transistors. 😊

for best image quality, when in HDR mode, (via the Desktop Window Manager (DWM) I use a canonical composition color space (CCCS).

I normally prefer scRGB color space (BT.709/sRGB primaries with linear gamma) and  IEEE half precision (FP16 bit depth). for my Desktop Window Manager (DWM) I use the canonical composition color space (CCCS).

😊

https://learn.microsoft.com/en-us/windows/win32/direct3darticles/high-dynamic-range

:

 

Edited October 13, 20223 yr by turbomax

1 hour ago, CallsignDE said:

Are you able to fly into big airports like Vienna without a Fps drop? I have a 3080 10Gb and my Fps are dropping from 35 to 15 while approaching. Always when VRAM is maxed out. 

I do experience a small FPS drop at big airports. But it's almost imperceptible. My 1070 only has 8Gb, so I don't max out every setting. 

I don't see how a gpu driver update will make a difference in how cpu cores are being utilised. That is down to the game engine and how it has been developed. You can move some things around to make better use of available cores but ultimately the main thread is the one that keeps it all running in sync which is why we see the main thread limited issue.

If you want to see how your cores are being used in game, run MSI Afterburner with the display showing each of your cores. In HWInfo, they may well all show 100% usage as a max but if you monitor in real time, likely only one will be near 100% at any given time, a couple may be around 70-80% and the rest much lower. This will fluctuate around the available cores but don't expect to see all your cores running at 100% all the of the time.

17 minutes ago, Donka said:

I don't see how a gpu driver update will make a difference in how cpu cores are being utilised. That is down to the game engine and how it has been developed. You can move some things around to make better use of available cores but ultimately the main thread is the one that keeps it all running in sync which is why we see the main thread limited issue.

If you want to see how your cores are being used in game, run MSI Afterburner with the display showing each of your cores. In HWInfo, they may well all show 100% usage as a max but if you monitor in real time, likely only one will be near 100% at any given time, a couple may be around 70-80% and the rest much lower. This will fluctuate around the available cores but don't expect to see all your cores running at 100% all the of the time.

You have to remember that the game engine sits "above" the drivers. The drivers decide how to execute what the engine is asking it to do. Its my understanding that the gfx driver can and does offload certain tasks that used to be executed by the GPU to the CPU. Its obviously only of any benefit if you have spare CPU capacity.

Edited October 13, 20223 yr by Vel

I had to run DX11. The flickering was related to DX12.

After some more testing, I'm not getting any more FPS with DX12 DLSS than with DX12 TAA. But DLSS "feels" smoother for some reason.