VR Performance Tweaks & Tips

Discussion in 'General Discussion' started by Thomas Jansen, Apr 19, 2019.

  1. rafnix

    rafnix New Member

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    Does a Quest 3 via link cable demand more PC power than a Rift S?
     
  2. nolive721

    nolive721 Well-Known Member

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    you you should smoke us in terms of performance with a 4090 even if you don't have a X3D CPU.

    I was doubtful about headset fundamental differences but I fired up my Q2 last night, that I had left to my daughter for standalone Gaming for a long long time.
    and to my surprise it did introduce some micro stutters in RRE, and I observed also graphical artefacts in bumper view

    None of this is present when I VR with my Pico NEO3Link so yes headset itself or maybe the drivers/settings create this discrepancy and influence your experience with the G2

    as I mentioned above, it could be such a rabbit hole to identify source of stutters and low performance in VR that I would recommend to start from scratch.

    Your headset generic resolution and generic settings set in the drivers/WMD UI
    Disable any monitoring/tweaking tool, I mean no MSI AB, RGB stuff bla bla bla (concrete example for me few months ago, I had stutters with ControlFan due to the source of sensors its using for GPU temps so I had to untick this in the software settings to get back smooth VR)
    set your NVIDIA CP and Profile inspectors to DEFAULT
    see if that toggle in Windows affects your performances
    [​IMG]

    hope this helps
     
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  3. MonkofDoom

    MonkofDoom New Member

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    Anyone have a link to iron wolf's opencomposite? can't seem to find the exe anymore and the site seems to just have uncompiled code.
     
  4. Putzak

    Putzak New Member

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    You don't need to use the exe, the dll files will do. You can find them here:

    https://gitlab.com/TheIronWolfModding/OpenOVR

    I have not been able to get any version of open composite to work with Raceroom though, let me know if you succeed.
     
  5. MonkofDoom

    MonkofDoom New Member

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    Thanks, I have those and I can get it to run without Steam VR but can't get openxr toolkit to work, I recently deleted some stuff off the network drive and thought for sure I had a RRRE specific opencomposite.exe guess I'm about to where I'm going to get unless they bump it to dx11/12
     
  6. Maskerader

    Maskerader Well-Known Member

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  7. MonkofDoom

    MonkofDoom New Member

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    That is the upgraded/maintained version, I either misremembered a bespoke rf2/RRRE version or it is no longer available.
     
  8. vvPULSEvv

    vvPULSEvv Member

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    This remains an issue. ASW is a great way to run R3E without having to sacrifice graphics. Remember to assign Mirror Quality to High if ASW is Auto or Forced.
     
    Last edited: Jun 10, 2024
  9. Janos Kovacs

    Janos Kovacs Member

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    You have a 13600k right?
    It is possible that the game is running on efficiency cores or the os is unparcing just 1 core fore Raceroom because of the small load. You should check it while in game. I had the same issues with 13700k.
    Solution is to disable the E-cores in bios and actually unparking all the cpu cores (google it, I don't remember how exactly)
    If you have not set these it's almost certain that you have some issues with it.

    A 13600k overclocked is possibly one of the fastest cpu for Raceroom in existence now, RR cannot use 3dvcache and fancy new stuff, it needs a few cores at extreme frequency, thats it.
     
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  10. Janos Kovacs

    Janos Kovacs Member

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    I have 2 possible ideas, hope it helps:
    1. You had an Nvidia graphics card before, and AMD still does not support DX9. I have written about this here before, bought a 6900xt and it was not running RR (just RR as in your case) I switched to 3080 and now I'm using a pimax 8kx at 120% resolution. To check if this is the case verify the GPU frequency whyle in game (with GPU-Z), if it goes up and down and is not on the max freq. (like in other games) than the problem is what I had, and probably everybody with a new AMD card: GPU load is so low with DX9 that the driver is constantly underclocking the graphics card.

    2. You were using the old Pimax software, called PiTool and now with the Crystal You have to use the new software.
    And this new software has an inexplainable high CPU usage (even at idle) and that is limiting RRs performance since RR is so heavily CPU bottlenecked. I had this issue too with the 8KX, I have to use the old Pitool instead the new software avaliable on their main site. Worth mentioning that I have not tried newer versions since last year.
     
  11. nolive721

    nolive721 Well-Known Member

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    I run the Game with a 5800x3d and 4080 super giving me a 90fps locked smooth experience on my pico Neo3 link

    and that is with above 3000pixels per eye resolution and graphics cranked up in Game

    not even need opencomposite anymore

    but I reckon PCVR is so time consuming to tweak so it could be anything creating a bad experience
     
  12. Thomas Jansen

    Thomas Jansen KW Studios Developer

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    that last part is definitely not true. In fact, I think RR might have one of the biggest performance uplifts from the ryzen 3D cache! Because our engine is not very efficient, it has tons of data it needs to constantly store and read, which is many times faster if it can be stored in a huge L3 cache instead of RAM :) We've seen uplifts of over 30% going from a 5800x to a 5800x3D
     
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  13. Maskerader

    Maskerader Well-Known Member

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    Yeah, I was wondering too, and I also see a significant FPS drop if I disable eDRAM (essentially L4 cache) in my i7-5775c. About 20-25%.
     
    Last edited: Jun 12, 2024
  14. Janos Kovacs

    Janos Kovacs Member

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    Oh, I didn't know that.
    I have realized in the past that RR runs very well on overclocked intel cpus, and ram speed makes a difference too. And that hyper threading and very high core count is not needed. This is why I thought that the game has no benefits from these new technologies like 3d cache.
    I have built my last 2 PCs based on that belief specifically to run RR well in VR. No I'm wondering if it was a mistake.
    Would be nice to see a performance comparison of the last few years cpus in RR.
    If somebody is interested I would do some controlled benchmarking to compare cpus, something similar to the DX9 performance thread.
     
  15. Scythie VR

    Scythie VR New Member

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    Does someone got the DLL files from TheIronWolf? The links are no longer working unfortunately.. Thank you! Very appreciated!
     
    Last edited: Jul 2, 2024
  16. FeltHλt

    FeltHλt Moderator Beta tester

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  17. Scythie VR

    Scythie VR New Member

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  18. GMB007

    GMB007 New Member

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    Hello folks,
    Does anyone still have the DLL file for 'TheIronWolf'?
    The Discord link is going nowhere.
    Thanks
     
  19. Maskerader

    Maskerader Well-Known Member

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    These are the files that @FeltHλt posted on Discord.

     

    Attached Files:

    Last edited: Sep 6, 2024
  20. GMB007

    GMB007 New Member

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    Thanks, that works perfectly. It starts without SteamVR, but the performance is still subpar. Graphics set to low, it looks like the end of the 90s and it runs just borderline.
    I have a 5800x3d, 6950xt and 32GB ram and vr with quest 3.
    ACC and AMS2 run very well and the graphics look very good there too.