X-Plane FPS drops and recovers

[k0k021]

Hello,

I recently purchased X Plane 11 from the Steam store. I am experiencing frame drops with my new PC but it recovers immediately. This results in micro stutters which ruin the experience and make me regret buying the game. I saved the frame rate data to a data.txt file and it shows that the frames are at 60 (where I have capped them) and then suddenly drops to 19 FPS and goes back up again to 60 FPS. I ran every plane and experimented with all the settings but there is always this problem. I have tried everything but nothing seems to fix it. Can anyone help?



My system specs (Pre-built):

Liquid Cooled i7-8700k

16gb DDR4 ram

RTX 2080 with 8gb GDDR6 VRAM

850W power supply

256gb SSD

2TB Hard Drive (Currently has Xplane on it)

4k 60hz LG monitor

[John W]

There are many things that can affect the frame rate. One of them is the default weather. Whenever the default weather is about to reload I get a frame rate drop and after the weather loads it returns back to normal.

I also have an issue with XP11 sometimes when I start a flight. If I make any changes to my joystick configuration, or start with one aircraft and decide to change to another aircraft, I get small stutters that start right after the aircraft takes off. The only way I can fix this is to exit XP11 and restart it.

All I can say is that I never get a constant framerate when flying XP11. It varies up and down depending on what is being loaded at the moment. I am running an I7 7700 4.5Ghz, GTX 1080TI 11G, 32G RAM, dual 1TB SSD's on a 1920x1080 monitor.

[opjose]

X-plane was designed for approximately 24-30 FPS (See the manual, it is right there in the appendix).

With your newer and decently powerful setup, you should be shooting for 40 FPS on average.

If you crank it too high, the sim will become texture data starved and microstutter as the things are effectively depleted.

Turn on V-Sync to give the CPU time to fetch data from the HDD/SSD.

Adjust your rendering settings to try to get a steady 40 FPS instead of 60.
That should reduce the microstutters.

Also remember that X-plane utilizes OpenGL not DirectX, so while you may not see microstutters in other programs, X-plane may be exposing them in your OpenGL drivers.

[k0k021]

Should I try to re-install it on my SSD instead of my hard drive so that it is faster?

[SixElon]

Originally posted by k0k021:

Should I try to re-install it on my SSD instead of my hard drive so that it is faster?

I would say yes but like you only a small SSD which means Orbx real earth scenary is gonna be a problem for me.

I am curious if HDD is still ok when running with Orbx?

[Poison Dart Frag]

Are they gonna improve the framerate target once the Vulkan overhaul is in or is still gonna be "anything above 30 is profit"?

[Frokka]

Try changing the setting for "Threaded optimization" in the Nvidia control panel.

http://www.tweakguides.com/NVFORCE_8.html

[Savvy]

Is your 2TB HDD new or 'healthy'? HDD can cause these issues. Try to move the folder to your SSD.