I assumed so. I wonder why that is.
I hope this issue is fixed sooner rather than later.
2 Likes
âSolvedâ doesnât mean that. It means it was accepted as a bug, and has been logged on their internal bug tracker.
1 Like
Huh. Thatâs interesting. Thanks for letting me know.
1 Like
We get to wait 1.5 months for SU7 - what a freaking joke
2 Likes
Can confirm. Long haul plans are definitely affected. The dev mode shows main thread and âmanipjlatorsâ are loaded. I donât know what âmanipulatorsâ are, but thatâs probably whats making the main thread load up. Also, pausing with the esc key make the fps recover, but on my machine, my GPU fans start to ramp up speed heavily. Something is loading up the sim real hard, and thatâs whats doing this. Screen:
4 Likes
Its the length of the flight plan. I loaded up the F/A-18E and filed a plan from SFO>OMDB. I know it wonât make that, but the point was to establish the length of plan. That seems to be related. The short trips donât seem to be affected as badly. So, I wonder if itâs really weather doing this. Somewhere I was reading that someone thought this was weather related, but that doesnât seem to be the case. I started with a weather preset, and still with that plan in an aircraft I hadnât experienced this in, itâs still doing it, and only when I file a long haul plan. So, what is the sim doing when itâs anticipating a long flight? Is it not downloading and storing scenery along the route into the cache? Because if itâs storing it in RAM, then I would expect to see that showing up on the game bar. But, the total GPU RAM available doesnât, either. Not related, I know, but just to establish that there are other problems with the game bar.
So on my machine, it most definitely is directly associated to the length of the flight plan. Longer haul, worse performance, and the degradation is more rapid. If I file a plan with short hops, it doesnât result like this.
Thatâs very interesting. Thank you for sharing your findings!
1 Like
Indeed. I may not be the most thorough, but certainly can troubleshoot.
So what has happened? A few of us should probably test a couple of scenarios as well to confirm our findings. I just want to fly, so I get it, but this makes that impossible. Nobody could land a 74 at 8-12 fps. Thatâs lame.
Yea. I find it challenging landing the 320 at 10 fps. Ground steering is even harder for some reason.
I fly on the VATSIM network pretty much exclusively so this stuff is very important to me.
Sure for the average simmer itâs fine. Just a VFR flight to see some attractions. Nothing wrong with that.
But, if they want to keep me and many other simmers around when X-plane 12 comes out, theyâve got to improve drastically on stuff like this.
1 Like
Well now this is weird, but suddenly, in the 18 @FL350, same weather preset, suddenly it just snapped to 30 fps. No explanation. All bars on the dev mode tool show green. I wonder what just happened. Well, not the GPU graph, but all the others. DX11. Only using almost 3gb gpu ram now of 7.12, but still doesnât use the whole other card with another 8 gb on it. Thatâs something I wish they would develop is multi gpu support. But, maybe they had best leave it aloneâŠ
Amen - competition is good
This might help. The people who say they donât have this issue are either
- Radeon users with cards such as the RX6800
- or people who have set vsync and locked their FPS to 30 which tells me they are focused on mostly being GPU bound as opposed to CPU.
The Radeon users not having this issue is a bit surprising, but actually makes sense. Nvidia cards have a higher GPU driver overhead than AMD cards according to hardware unbox and that could cause some issues especially considering MSFS uses a lot of CPU.
3 Likes
Report it of course. But also try to make a big fuss about it publicly on the internet. In a good spirited way.
Because 90% of the time youâll be laughed at or you wonât get any reply when reporting at ZenDesk. No matter how much time you sink into perfecting the report details. At least thatâs my experience so far. If itâs a positive feedback, youâll get quick âAww, thanksâ, if itâs a detailed report, youâll get no reply or âWe donât support your configurationâ because of some irrelevant detail in your report. Like some hw device, or controller, etc, you just listed for completeness.
Iâm on RX 6900XT, 4K 60hz, vsync, high-end preset and havenât had this issue anymore (4 flights done in low to medium density areas). My guess would be that it still would affect everyone then but just wouldnât be obvious or noticeable to all users.
Iâm a Radeon user. 2 vega 64s, and locked at 30 fps. Really, I built this machine during the alpha testing phase to put the best stuff available and attainable at the time from AMD to work on this thing. All of that went south after the last update.
Gradually, the performance begins to decrease more and more, where one is barely able to keep 10 FPS. That said, it seems not always. Iâve found that the length of the planned route seems to be the biggest contributor to this issue.
As of today, I have seen consistently that the length of the flight plan is creating some other issue, and I canât be sure, but it may be trying to work on something youâll either see or find along the route. Either way, in dev mode, itâs loading up the main thread and the âmanipulatorsâ listing. And as Iâm en route KSFO>OMDB in the F18, it suddenly snapped to 30 fps, and is holding it just fine. I have no clue what happened, it just did it.
Nvidia 3090 locked at 60fps if that helps, and I only fly GA.
Unlock your FPS and do the steps.
- Taking a shot of the Dev mode FPS counter after your 1 hour flight when landed at an airport,
- then exiting to main menu and spawning back into that same location and taking another screenshot to compare.
- Bonus if you restart MSFS and do the same thing
1 Like
That reads like that old adage âDoctor, it hurts when I lift my arm in the air.â
The issue is marked as âUnder Investigationâ in the recent dev update:
2 Likes
LET ME SUMARIZE FOR NEW USERS WITH THIS ISSUE:
This performance degradation has been affecting many users for a long time, in my case, Iâve had it since launch but it wasnât so widespread
Intrestingly, it would seem that since the new years, a LOT more people seem to be having this issue
Itâs not related to MFS flight planning before the flight, it still happens with or without live weather, live or offline/online traffic on or off it still happens if you turn off all online funcionality, it still happens if you never open the VFR map at all or donât have many icons on the toolbar (my case)
In my case that have this since launch, I usually run it on Live Weather (no change if off), all traffic off (since Iâm usually on IVAO), settings on a mix of high/ultra (does not affect the issue).
As of today, the community kind of narrowed it down to WASM planes, altho there are some reports of people having the issue with default planes as well, so it still might be unrelated, or 2 separate problems with similar outcomes
There are hints that it MIGHT be related to a great number of waypoints on your FMC/MCDU/Flightplan
The most common presentation is the FPS starting to drop after around 1,5h of flight time, but for some people itâs way before, and for some after 3 hours or so, it tends to keep sloowly degrading until below 10fps
Iâve observed in the graphs sometimes itâs the mainthread, sometimes rdrthread, sometime scoherentgtdraw, sometimes manipulators intrestingly
It happens all around the world
Turning rolling cache off does not affect it at all (at least for me)
Ram usage at least for me, tends to stay pretty low, usually around 5 to 10gb even tho I have 32gb
Iâve had this issue with many planes including FBW A320, B78X, B748, Longitude, TBM9 and CJ4 (admitedly, all modded variants), Iâve seem people reporting it with the C152 tho (not personal experience)
Despite this long thread since April this year (keep in mind Iâve had this issue since launch and made multiple reports of it on zendesk), Asobo seems to refuse to acknowledge the issue at all.
Iâm sorry so much more people are experiecing this now (stangely without any significant updates to the sim), but Iâm happy for it might finally get some attention now
My rig is:
I7 8700K @4.9Ghz, 32gb RAM 3200mhz, EVGA RTX 3090 running on UWQHD Monitor(3440x1440)
5 Likes