1.18.13.0 (SU5) Stuttering and framerate drop when camera panning (TrackIR, mouse, joy hats)

Of everything wrong with this patch this is the most disgusting and immersion breaking one. Asobo should work day and night to fix this in a timely manner and release a patch in the coming days.

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You also experiencing that 20-30 second pause with black out screens and hour glass bobbing in and out???

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A320 se FBW not flyable.
CRJ Aerosoft not flyable.
Graphics has been downgraded.
And I can’t even speak about performance gain since I got new huge stutter inside cabins when I pan the camera.

I’ll start writing bad reviews everywhere to inform the more peaple I can.
I will no longer buy any addons or MS product in general.
This is scam in my opinion.
We should think about a legal action to ask for refound. These peaple just care about money. If we want to gain something we should hit them there.

I echo your frustration, but problems can be fixed, and Asobo are the people who will do it. Rather than review bombing or legal action, the best way we can affect this and other issues is to post video evidence of it occuring. Comments are great, but let’s keep substantiating those comments with data. The more data Asobo have, the quicker and more thorough the solution.

I understand what you are saying. I used to agree with you but now I think Asobo is the problem, not the solution.

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I am not sure if that can be fixed. RAM usage does not exceed ~10GB after SU5. If you look straight out the front window and then do a quick pan to, let’s say 90° left, the new textures there just do not fit into the RAM, so the textures already there have to be discarded and new ones loaded. That’s the cause for stuttering.

Thinking that this can be fixed is thinking that Asobo will revert the memory restriction. Which would be a good thing. I just don’t believe it. For Asobo this would mean to have 2 different code bases.

Good technical insight kaha300d. But look, regardless of technical changes introduced in SU5, the developer is still held responsible for resolving issues introduced in their product, ensuring users who’s hardware meet the requirements, and have previously enjoyed a reasonable experience, can continue to do so.

This panning issue isnt a reasonable experience, obviously, from what people have described, myself included, we are awaiting a solution so we can actually resume use of the product, such is the CPU impact and severity of the stutter.

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So there’s again hope?!

You all might want to check your GPU usage. If it’s low, turn off live traffic. See this topic for reference: Live Traffic ON = low GPU usage! - Bugs & Issues / Install, Performance & Graphics - Microsoft Flight Simulator Forums
It causes major stutters after a certain period of time.

Different issue forzakingfam, but thanks for sharing. Live traffic has no effect on this issue.

No problem. Hope it gets fixed for you!

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I have recorded a more detailed video using Task Manager and HW Monitor to look at usage and temperatures. The results are quite interesting. I have added this video to my original post also.

You can see the game runs smoothly and with a decent frame rate whilst the camera is static. CPU usage spikes immediately to 100% on all cores when panning around, and temperatures increase 10-15 degrees. GPU usage actually drops slightly during panning, and generally remains well utilized throughout. RAM is incredibly underutilized at 4GB, and VRAM is equally low at 5 of 11GB available.

In the second half of the video I use the aircraft to pan by banking sharply, to demonstrate the problem is not with TrackIR, but with the in game viewable or rendered area. Whilst the video is not as smooth as what I was witnessing, it was generally unplayable when looking around.

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Voted, great research!

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In all fairness I have similar symptoms to yours albeit not to that extreme, but you are rocking some old hardware there and the visuals looks to be set quite high?

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Sounds like they’re aiming to fix this by WU6 (Aug 24).

Thank you Asobo. That was all I wanted to read. I’ll stop moaning immediately.

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Indeed PledgedSquash50 a 4790k isn’t exactly a world beating processor anymore, but it’s feeding the 1080ti sufficiently, which is 90-95 percent utilized, and maintaining 45-55fps over NYC. If my processor were the issue alone, this should be apparent at all times in that environment.

What we do know is that the memory allocation has significantly changed in SU5. So rather than the processor being the issue directly, I am considering it is this poor memory usage, dumping excessive tasks on the CPU and ā€œstallingā€ it out during recall of culled environment data, or something to that effect. As a side note, there are users with a range of processors being affected - I see a 10900k mentioned in this thread with ā€œheavy stutteringā€, so I think you make a fair point, but there’s more to it.

Thanks for the input Aeluwas, but I can’t see mention of a fix aimed for WU6, my apologies, I’m sure your information is correct, I have tired eyes!

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Voted, got a 5800X and every time I move the camera in the external view (middle to left, middle to right etc.) the FPS drop massively for a short time and it stutters. Like 30 FPS less. The scenery/LOD loads back and the FPS recover back to normal.

Very annoying.

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The problem with the I7 4790K which I owned too, is that as good a CPU as it (and it is), it is severely limited by its ā€œecosystemā€. Its caches and the DDR3 architecture is now clearly obsolete when you put it under the stress of something like MSFS.

When I switched to my Ryzen 5600X and DDR4, it was night and day, even on my 1070 before I found a 2070S

The DDR3 and associated architecture is clearly a thing of the past now I’m afraid. It’s bottlenecking everything

Is DDR3 really a limiting factor though, PorcoRosse? Genuine question.

At my resolution and settings I’m generally still GPU limited, at least in regard to peak framerate, but the CPU is still allowing full usage of my GPU, and without stutter (notwithstanding this issue). Prior to SU5 I was more CPU limited, but this update has corrected that to a degree, I’m getting stable 50-65 in non urban areas and 45-55 in NYC. Looking at my frame times and general stability, I would have expected far worse from a 4790k. I would expect a current I7 or Zen 3 would provide greater stability, but the GPU would remain the limiting factor, in my case. I know it’s not as black an white as that, but I’m quite impressed with performance.

With this particular issue, my system and video memory is heavily underutilized, that’s ultimately the issue as far as I can tell, and the knock on effect to the CPU.