Not very old, 12th gen i5 (12400F) with a Samsung 980 Pro NVme M.2 1TB SSD. The old part is the GTX 1080 video card. But, that card still works more than fine for everything I make it run.
Possible memory leak - performance issues
- Thread starter H222
- Start date
There's definitely a memory leak and it's more obvious with Build 132284, SP6 HF1.
Yesterday, I was doing the usual Trainzing thing we've done since the early days of editing in Surveyor fiddling around and fixing things then exiting and driving my extensive but simple session on my big route.
The session loaded okay and then I started driving only to have massive stutters. I brought up the Profiler, Trainz Launcher ->Developer -> Show Profiler, and ran that at the same time as I was driving. The route was down to 7.8 fps from 27 and got worse. Pressing pause brought the frames rate up to something reasonable, but that would degrade over time. What made this really bad was I was editing the route in an area where I had the worst framerates due to a lot of content, and after spending lots of time removing content and replacing assets, the framerates were worse!
Before I got a migraine from the stuttering, I exited Trainz Plus completely including the Launcher and started up again. This time, driving my session was fine. I saw nothing less than 20 fps in the worst culprit areas and this was how it was for the rest of the evening.
To prove this was an issue, I edited and fiddled around again. The route has plenty of things to poke around with and then after editing, I went back into Driver and the framerates were poor again.
Yesterday, I was doing the usual Trainzing thing we've done since the early days of editing in Surveyor fiddling around and fixing things then exiting and driving my extensive but simple session on my big route.
The session loaded okay and then I started driving only to have massive stutters. I brought up the Profiler, Trainz Launcher ->Developer -> Show Profiler, and ran that at the same time as I was driving. The route was down to 7.8 fps from 27 and got worse. Pressing pause brought the frames rate up to something reasonable, but that would degrade over time. What made this really bad was I was editing the route in an area where I had the worst framerates due to a lot of content, and after spending lots of time removing content and replacing assets, the framerates were worse!
Before I got a migraine from the stuttering, I exited Trainz Plus completely including the Launcher and started up again. This time, driving my session was fine. I saw nothing less than 20 fps in the worst culprit areas and this was how it was for the rest of the evening.
To prove this was an issue, I edited and fiddled around again. The route has plenty of things to poke around with and then after editing, I went back into Driver and the framerates were poor again.
That makes sense though. There's a lot more going on in the main menu than there is in a route. What's bad is declining memory resources. If you exit, is the amount of RAM when you started the same, or did it give less?Some oddities... Comparing in-game (left) and route menu (right) GPU and memory usage: route menu "eats" more GPU than the game itself! And memory (both VRAM and RAM) isn't freed as it should be. Results don't vary a few minutes later.
The fact that the FPS got worse as I entered and exited from Surveyor to Driver is the issue I faced. Since then, I've exited back to the desktop then returned to run my routes in Driver rather than jumping back and forth. I haven't tried using UDS, but my gut tells me that the results will be similar.
It is not the main menu but the route menu, where there is nothing that should use so much GPU and VRAM.
Freshly restarted, in route menu GPU and VRAM usage are almost the same, but RAM has been freed and dropped to 24% (7700MB), which confirms the game uses GPU and VRAM inconsistantly and doesn't free RAM unless restarted.
There are images and framework, animated sliders, etc. All of these use GPU to render and VRAM as a frame buffer.
The thing is, the GPU is used for a lot more than just rendering images now. In Trainz, they make use of the GPU to run some scripts and other program tasks like many other programs today because the GPU is a lot faster and more efficient at these tasks than the CPU.
What is wrong is overall memory usage causing poor performance the second or third time when a route is opened. This causes slower and slower performance due to less resources as if air is being let out of a balloon.
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