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mcdonoughdr

P3Dv5 Excessive vRam usage

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it is not a hit and miss... everything in V5 counts in term of VRAM, terrain, aircraft, airport textures will add MB to the VRAM until you run out and crash the sim.

everytime you move any slider to the right you are increasing the objects to be render. For example, the texture resolution from 1024 to 4096 can add easily 1-2GB to the bag. PBR textures are also heavy, when you call the GSX vehicles you are adding 0.5gb to the VRAM.

There are some airports with PBR and 4k textures which are really hard on VRAM like LatinVFR KMIA, KFLL and LEMD, actually the developer is suggesting to drop the texture resolution from 4k to 1024 to avoid CTD.

If you understand this logic and keep monitoring your VRAM usage you will hardly hit the limit.

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Ramon De Valencia

Intel i7 9700k @ 5.0Ghz / Windows 10 Professional 64 bit / 16GB DDR4 3200MHz CL14 RAM / EVGA NVIDIA GTX 1080TI 11GB RAM / 256MB SSD (OS Drive) / 500MB M.2 EVO (sim) / 750watt PSU

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2 hours ago, captain420 said:

Why can't they make it use system RAM as well if you have it. I have 32GB of system memory which is plenty. Would be nice if P3D can also take advantage of that if it runs out of VRAM.

You don't want that. Shared RAM as VRAM is slow as hell, thats when you get heavy stutters with DX11 when it starts to use it.


System: i9 9900k@4.9 - 32 GB RAM - Aorus 1080ti --- Sim/Addons: P3D v5 + ProSim737
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50 minutes ago, ttbq1 said:

it is not a hit and miss

But it is! Some users can't complete a flight at all without running out of vram and many others have no problems at all. Some with high end 11gb graphics cards and low-medium settings have crazy high vram use while others with the same cards on higher settings don't.  

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7 hours ago, Dave_YVR said:

But it is! Some users can't complete a flight at all without running out of vram and many others have no problems at all. Some with high end 11gb graphics cards and low-medium settings have crazy high vram use while others with the same cards on higher settings don't.  

It doesn´t have anything to do with the GPU, it is all related with the size and quantity of objects render.

I have a 11Gb GPU and have been testing V5 since release date, and trust me I have different graphic settings depending on the aircraft and the airport I am flying. Sometimes I need to change the graphic settings during cruise level.

From Flytampa KLAS to FSDT KLAX on the MaddogX I will start with texture resolution at 2048 and LOD Radius Ultra (EA ON with cloud resolution at MED). At cruise I changed to 4096 LOD Radius to Max and cloud resolution to HIGH on EA because FSDT KLAX doesn´t have PBR and fancy 4k textures (STill looks great). And in both cases I am able to stay 1-2GB below my 10Gb threshold. 

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Ramon De Valencia

Intel i7 9700k @ 5.0Ghz / Windows 10 Professional 64 bit / 16GB DDR4 3200MHz CL14 RAM / EVGA NVIDIA GTX 1080TI 11GB RAM / 256MB SSD (OS Drive) / 500MB M.2 EVO (sim) / 750watt PSU

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23 minutes ago, ttbq1 said:

It doesn´t have anything to do with the GPU, it is all related with the size and quantity of objects render.

I have a 11Gb GPU and have been testing V5 since release date, and trust me I have different graphic settings depending on the aircraft and the airport I am flying. Sometimes I need to change the graphic settings during cruise level.

From Flytampa KLAS to FSDT KLAX on the MaddogX I will start with texture resolution at 2048 and LOD Radius Ultra (EA ON with cloud resolution at MED). At cruise I changed to 4096 LOD Radius to Max and cloud resolution to HIGH on EA because FSDT KLAX doesn´t have PBR and fancy 4k textures (STill looks great). And in both cases I am able to stay 1-2GB below my 10Gb threshold. 

The last thing I want is to fool endlessly with settings, I hope they fix this

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Shom

[P3D v5.1 HF1 running on Win 10 Pro, i7-9700K, EVGA 1080Ti, Crucial 2666 16GB, 2 500GB Samsung EVOs 850/860]

[FSLabs A319/320/321, Feelthere E170/175/190/195 v3, PMDG 737 NGXu ,TFDI 717, Aerosoft CRJ Pro, Majestic Dash 8, CS 757 iii, Feelthere ERJ-145, Fly The Maddog X, QW 787, PMDG 777]

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9 minutes ago, Shomron said:

The last thing I want is to fool endlessly with settings, I hope they fix this

who needs to fix what? You don´t have to change your settings if you don´t want to, and you won´t have a CTD. But you need to know how much VRAM your addons are consuming at that particular settings. You can´t blame LM for that.

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Ramon De Valencia

Intel i7 9700k @ 5.0Ghz / Windows 10 Professional 64 bit / 16GB DDR4 3200MHz CL14 RAM / EVGA NVIDIA GTX 1080TI 11GB RAM / 256MB SSD (OS Drive) / 500MB M.2 EVO (sim) / 750watt PSU

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1 hour ago, ttbq1 said:

who needs to fix what? You don´t have to change your settings if you don´t want to, and you won´t have a CTD. But you need to know how much VRAM your addons are consuming at that particular settings. You can´t blame LM for that.

I'm not blaming LM it's just frustrating since it brings me back memories of the 32bit era...


Shom

[P3D v5.1 HF1 running on Win 10 Pro, i7-9700K, EVGA 1080Ti, Crucial 2666 16GB, 2 500GB Samsung EVOs 850/860]

[FSLabs A319/320/321, Feelthere E170/175/190/195 v3, PMDG 737 NGXu ,TFDI 717, Aerosoft CRJ Pro, Majestic Dash 8, CS 757 iii, Feelthere ERJ-145, Fly The Maddog X, QW 787, PMDG 777]

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4 hours ago, Shomron said:

I'm not blaming LM it's just frustrating since it brings me back memories of the 32bit era...

Apples and Oranges. Get your settings straight for the capabilities of your hardware and you're good to go. You have to do this also for 4.5, so practically no difference here. Just for one thing you have to look out more yet you get higher overall performance. A small price you have to pay for a high gain.

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39 minutes ago, JoeFackel said:

Apples and Oranges. Get your settings straight for the capabilities of your hardware and you're good to go. You have to do this also for 4.5, so practically no difference here. Just for one thing you have to look out more yet you get higher overall performance. A small price you have to pay for a high gain.

I fear there are too many variables and if one is not taken into consideration may result in a CTD. Taking LatinVFR sceneries as an example in this thread

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Shom

[P3D v5.1 HF1 running on Win 10 Pro, i7-9700K, EVGA 1080Ti, Crucial 2666 16GB, 2 500GB Samsung EVOs 850/860]

[FSLabs A319/320/321, Feelthere E170/175/190/195 v3, PMDG 737 NGXu ,TFDI 717, Aerosoft CRJ Pro, Majestic Dash 8, CS 757 iii, Feelthere ERJ-145, Fly The Maddog X, QW 787, PMDG 777]

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36 minutes ago, Shomron said:

I fear there are too many variables and if one is not taken into consideration may result in a CTD. Taking LatinVFR sceneries as an example in this thread

What i think is that some scenery developers sometimes go to crazy with their textures. Sure, 4096x4096 textures are important but its not helpful to have them on an remote shed standing somewhere on the airport. I know, thats easy talking here.

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System: i9 9900k@4.9 - 32 GB RAM - Aorus 1080ti --- Sim/Addons: P3D v5 + ProSim737
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The hardware is abstracted. If there's no room for a texture it doesn't load. If a CTD occurs loading scenery, then that is a fault in a scenery, missing or corrupt file maybe.


Steve Waite: Engineer at codelegend.com

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1 minute ago, SteveW said:

The hardware is abstracted. If there's no room for a texture it doesn't load. If a CTD occurs loading scenery, then that is a fault in a scenery, missing or corrupt file maybe.

Sorry, by CTD I meant VRAM exhaustion situation 


Shom

[P3D v5.1 HF1 running on Win 10 Pro, i7-9700K, EVGA 1080Ti, Crucial 2666 16GB, 2 500GB Samsung EVOs 850/860]

[FSLabs A319/320/321, Feelthere E170/175/190/195 v3, PMDG 737 NGXu ,TFDI 717, Aerosoft CRJ Pro, Majestic Dash 8, CS 757 iii, Feelthere ERJ-145, Fly The Maddog X, QW 787, PMDG 777]

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Some notes: In Task Manager, on  the Performance Tab, click on the GPU Activity icon, it shows utilisation and also shows Dedicated and Shared GPU memory. If there's any left showing the problem is with the scenery. With a 2080Ti and 64 GB RAM there will be 43GB available. With NVLinked cards the memory bandwidth is doubled so loading is faster although the memory is the same..


Steve Waite: Engineer at codelegend.com

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20 hours ago, captain420 said:

I really hope that HF2 can fix and or further optimize VRAM usage. Even after updating to Windows 10 2004 and gaining ~1GB of VRAM. In certain situations I am very close to the limit.

Why can't they make it use system RAM as well if you have it. I have 32GB of system memory which is plenty. Would be nice if P3D can also take advantage of that if it runs out of VRAM.

That is a limitation of DX12 itself. DX11 would automatically offload to system RAM if all available VRAM was used. That would cause a noticeable drop in performance, but the game would not crash. With DX12, the responsibility is now totally on the game developer to manage VRAM use. If the limit is reached, the game will crash.


Jim Barrett

Licensed Airframe & Powerplant Mechanic, Avionics, Electrical & Air Data Systems Specialist. Qualified on: Falcon 900, CRJ-200, Dornier 328-100, Hawker 850XP and 1000, Lear 35, 45, 55 and 60, Gulfstream IV and 550, Embraer 135, Beech Premiere and 400A, MD-80.

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2 hours ago, JoeFackel said:

What i think is that some scenery developers sometimes go to crazy with their textures. Sure, 4096x4096 textures are important but its not helpful to have them on an remote shed standing somewhere on the airport. I know, thats easy talking here.

Going by the Flight Beam readme best viewed 2048 textures, I have just been working on the V5 AFCAD files for my Flight beam airports my 4.5 CAD files do not work correctly. that's why you cannot open them with ADE 75.

Now using ADE 177

Edited by G-RFRY

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Raymond Fry.

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