Denial, Anger, Bargaining, Depression, Acceptance

[geloxo]

@DensestSnail693

even single screen 4k will not tax it enough and can possibly stutter.

I can tell you my experience with 4090: at 4k native resolution plus an additional 125% scaling in TAA, so under demanding scenario, you could hit 45fps at apron (without frame generation). Now you get 25-35fps at most aprons, even on small airports and therefore also close to ground level. On the other hand you have no stuttering when you use G-sync (my case) as monitor adapts to existing fps figure dynamically. So with G-sync you can discard the fps problems, so the GPU factor or stuttering related to fps changes that go below monitor refresh rate.

What you get since AAU2 patch was released are crazy freezes, never seen before, which with SU15 can last up to 15 seconds (x3 times longer than last year). The simulation freezes completely. The freezing problems are not related with GPU but with CPU indeed, so the problem is again the overloaded main thread yet pushed more and more beyond its limits after each game patch.

You can see the following post from december, some months after those problems had started (AAU2 was released in June 2023). I could make a test and I found the reason of freezes at that time was the P+E-cores policy on modern CPUs.

Simulator developing a 4 second freeze with 2 second gap

Constant 4 second freeze when landing at airpirts after say a 2hr flight. Ruined my flight. Constant 4 secind freeze with 2 seconds running normally. Not due to network as tried with this off. When back to main menu it goes. Rendering issue. Pc benchmark is UFO so not the pc spec. Ran ok until recent nvidia update.

But then they pushed main thread again to release some memory periodically and we were basically lost after that because that process is taking all your main thread cycle time for whatever design reason. Now even running game only on P-Cores (so as fast as possible) does not prevent the freezes.

This is what has really changed since game was launched. A relatively healthy main thread was turned into one that no system can handle smoothly because it´s main thread itself the one freezing, not user´s systems. Indeed faster CPUs don´t solve the issue as you can see how CPU drops close to 0% during those long freezes.

This is also the real problem behind the multiple combinations of recent posts from different users releated to SU15 performance, stuttering and cam panning freezes that you can find in the forum: the main thread is freezing, shortly or during several seconds, but it´s freezing.

Cheers