Since SU4 I was experiencing a massive drop of FPS and heavy stutters on landing on heavy sceneries (like Inibuilds), however when I do short flights or if I load on them for takeoff, I don’t have that, FPS stays stable. So I realize that it’s just when you’re a long time with the SIM open, like in long haul flights.
In the first video I’m coming from a 9 hour flight. Notice that the approach it’s perfectly fine, and after 150ft the stutters come, and stays forever.
In the second video it’s just a 10min flight, and nothing happens, performance stays solid.
Check whether you see memory loss over time. That is most likely the cause of your problem. There is some DLC around that is not very robust in its memory management.
RAM Memory stays OK for those addons, and far from my limit. I can’t see any difference.
Are you sure you are looking at Vram? Mainboard memory is almost never a real issue with these things. It’s when you GPU runs out of memory and starts swapping to main memory the real problems start.
Your video shows the issue starting when a lot of the smaller details of the airport have to be loaded into memory so that would be the point where the issue will be most obvious.
Mathijs Kok
PMDG
1 Like
Related to VRAM, indeed it’s very high after some hours.
Well then, that is where you should look. Now I have no idea what additional DLC you have installed, but I suggest looking first at tools that actively insert or change elements in the simulator, those are most likely to be problematic. Weather tools etc. Things like scenery are unlikely to cause memory leaks, and the simulator is remarkably robust in that regard.
I see that you are using our 777 and the complex code of aircraft like that should always be suspect in these things. It’s been a few weeks since I ran a full test to ensure our products have no memory leaks. While I have no indication of an issue, I will plan such a test for next weekend. This involves 6 flights, each 8 hours long. (It’s good that we have tools that can handle these things without me having to fly.)
Mathijs Kok
PMDG
2 Likes
