Stutters had reduced considerably, allowing for better FPS. More testing this morning proved it wasn’t fluke. I’m not convinced though so will test some more. I’ve a new 1000w psu installed, so that should take away the last hardware constraint
I will test it later in the coming days.
As far as I can see this is mostly not showing up in the FPS counter. Sometimes when there is a big stutter (very rare) it dips the FPS, but mostly it’s not flashing red in the graph. I will test further.
I’ve mentioned how I force MSFS to use CCD0, without parking (wasting) other cores.
Interesting, but I don’t think it’s an FPS issue. A few extra FPS won’t help here. But another driver-related issue is possible…
Did that, and finally did a whole Windows / MSFS reinstall on a clean SSD. No difference.
Interesting. What exactly did you adjust to get this result?
I’m running a 1250W PSU, so there should be more than enough power.
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Me neither, but the text in the graphs is clear. 7950X3D is clearly the winner in all resolutions, consistently. And Studio drivers are noticeably faster.
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I don’t think it’s possible to convert threads, but after I can verify stutters in 2D (need to optimize Win10 first and reconfigure everything after a clean install), I will create a new thread and pst here, so everyone can vote. I will also put a link to this thread for anyone interested.
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No you probably can’t, but I think the moderators can by moving it to a different subforum. Asking won’t hurt and it would keep the topic from being split in two
I doubt it’s possible, as the bugs threads have to follow up a specific standard, so I need to reformat it properly and post there. But if a moderator is reading this, I’d appreciate any advice. I can edit this thread’s first post if it can be moved.
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Two more thoughts. Did you install the drivers from Windows update when you build the machine, or did you install from a disk provided with the mobo? Also, did you install the Nvidia Audio driver?
I just let Windows discover and load drivers. There are a couple of unknown devices, but I think these are related to the lights in the case (no loss to me). Also, I do not install the Nvidia Audio drivers (choose custom vs express, no Geoforce experience). Something to think about on your next go around. I hope this helps.
AMD chipset and ASRock mobo drivers. It’s always best to install the latest proper drivers. Windows autodetect is hit-and-miss.
No, I don’t use audio over DP/HDMI so I never install those drivers.
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Well, I did all the proper optimizations and tested in the default A320 over default NY: stutters are definitely there in 2D (4K 60Hz 43" Monitor). Even more so than in VR. I tried VSync on and off - the same “rubberband” stutters from every few seconds to every 15-30 seconds. But for the most part they are happening every few seconds if I look closely!
And I have to say the new hardware is amazing: on 4K monitor in TAA 100 (not DLSS!) and all Ultra settings (LOD200 etc. - the Ultra preset) in A320 sitting in Asobo JFK in runway 31R and flying to and over Manhatten, with Scattered Clouds (which is quite a lot of Ultra clouds BTW) - I get steady 100+ FPS! The worst dips are to 90+ FPS, but mostly it’s hovering around 107 or so. Stutters are NOT visible in the FPS graph, it’s all green and happy all the time, not a single yellow or red pixel. “Limited” is constantly flickering between GPU/Mainthread but is always in the green.
So, amazing framerates and still very noticeable stutters! It doesn’t make any sense. I tested with all online traffic and multiplayer off, all ground vehicles and traffic and planes off. Live weather and live traffic off. Photogrammetry on. I will report and file it as a bug. Something is very wrong with the sim - with framerates like that that do not dip at all, stutters should not be happening, not even close.
Nvidia drivers are the newest: 531.79
Sim 1.32.7.0
Server: Automatic East USA 34ms
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I have opened a bug report here, please use the “contribute to this bug” button, and add your reports to the bug, along with the vote, if you are experiencing this as well.
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Just did a similar 2D test on my rig with a 120 Hz 4K 43" monitor, 5800x3D (x570 mobo) and a 4090. Default A320 over NY. At first with Vsync off, I was getting very noticeable stutters, but checked my Windows 10 display settings and it had switched back to 59.997Hz for some reason. I re-selected 60Hz and also set Vsync on in the sim. Stutters disappeared. I had default Ultra settings in PC mode with LOD of 100, preset scattered clouds, on high not ultra, Multiplayer off, traffic light… I was getting a lower FPS using TAA than Roman, but with CPU at around 12-13Ms and GPU at around 9Ms. I was NOT seeing repetitive stutters at 15sec intervals at 500 feet looking out the side window and banked over the financial district. All seemed pretty smooth. Using the Asian server.
Also, 2D stinks, lol.
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maybe a more common problem with the x3d chips 
https://www.reddit.com/r/AMDHelp/comments/11hpydf/7950x3d_stuttering_in_games/
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I wonder what’s different in your case. I also made sure I have 60H/z set precisely. Tried VSync on and off - same stutters. Is there a reason you are using Asian servers?
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I live in Asia.
Jokes aside, I’m in Oz and they give me the lowest ping.
It could be you a more sensitive to micro stutters than I am, as I’m 71. But I was looking pretty hard while trying not to crash the A320 on manual looking out the side window. I was getting some spikes on the CPU dev mode monitor but no repetitive micro stutters on screen.
I will try again in 2D, but this time in a more comfy plane for me with a better view where I can really get down low and check things out. I’m not much of a tubeliner kind of guy.
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OK three more flights over NY, in a glider, Cessna 172 and even a Tiger Moth, both from the cockpit and under the fuselage for best view.
What I’m wondering is this really a case of variance in perceptions?
I might have spotted a few stutters flying between the skyscrapers (and there were some spikes on the CPU ribbon as before), but nothing that was doing my head in. Now, I have a quite a few hundred hours in fixed wing GA aircraft, gliders, even gyrocopters and, more recently, R/C model planes with video gear flying with goggles in FPV mode (well, until the R/C authorities here nerfed the rules so I have left the club). Now, flying real albeit tiny, planes via a dodgy video link actually adds to the excitement if anything, so smooth video feed is for me a different experience than for you.
Anyway, what I may perceive as jerkiness due to turbulence in MSFS flights you may be seeing as stutters and I may also be filtering out dodgy video feed, as I have had to do for the past twelve years or so since I pioneered FPV flying here and then went on to commercial drones, which, although having a digital rather than analogue feed, also suffer from interference glitches that are not immersion killers as well, it’s all real, not simulated.
Seems to me some of us here are being fed differing info from our brains and so perceive things differently.
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Interesting, if it’s related to refresh rate that somewhat could confirm my suspicion that it may be the same issue in VR, with different refresh rates (VR displays, framerate lock, 2D mirror) being out of sync or similar.
I don’t think it’s x3D related, had the same on a 7700x. Plus the stutters don’t show up in the frametimes graphs.
I don’t really know but I suspect that my experience of flying in VR in a simulator is somehow related to how I look around and interact with the world when I fly in RL aircraft, or for me even when with real life r/c models or multirotor drones using FPV video downlinks.
Whatever, I find the screen door effect far more immersion breaking than occasional stutters. Lousy cloud rendering breaks realism for me particularly.
Threads skipping between CCDs causes stutters. It’s pretty simple because you refuse to use the system the way it is designed.
Since you claim to be a knowledgeable with puters you also should know that the first thing to to troubleshooting is get back to basics - Ie. just try the thing the way it is supposed to be run. If it still keep stuttering, only then start doing something more to resolve the issue.
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As I mentioned, it is possible. I can’t stand 60Hz flicker in VR (Reverb G2), while others think it’s fine. I also see the jitter and blurriness when MR is off, even when locked to 45. It is rock-stable and would be smooth, but if I move my head or plane rolls, it’s jittery and blurry - for me MR is so much smoother and sharper by comparison (during movement). But many people swear by it and say that MR looks blurry and MR off is perfectly smooth and sharp for them. Clearly a perception issue. So it’s possible some people’s brains are filtering out minor stutters for them, while they are painfully obvious for me and many others. But in 2D it’s hard for me to believe people can’t miss them. Though we all are perfectly fine with filtering out the jitteriness of all movies at a measly 24FPS, and even cringe when motion smoothing chips are ruining the movies on some TVs.
It may be related to sync somehow…
The way it is designed is brutal: when the Game Bar detects a game, it basically kills (parks) the fastest cores, so the Windows process scheduler will put the game onto slower 3D cores. I do the same without killing any cores - I use those faster cores to run any extra software and Windows system processes (when possible). And I force MFS to use only 3D cache cores. There is LESS “threads skipping” that way. I can also disable SMT that way, only forcing MSFS to use cores 0,2,4,6,8,10,12,14, so no threads use 2 logical cores on the same physical core. But I did also test the default way. And got a lot of stutters. An interesting question is if I can actually pin MSFS to a 2 or 3 cores so it never tries to skip and keeps using single core for its main process. But I don’t think it’s productive to limit it to only 2 or 3 cores, it uses more, though unequally.