Lag/stutters on approach

[dawgfan58]

Hello,

I am having an issue where landing at KMEM I have stutters from about 300 ft agl all the way to exiting the runway. I first encountered this issue with the pmdg 777. I tested it with various other aircrafts such as the fslabs a320, tfdi 717, pmdg 737, pmdg 747, aerosoft crj and they all have the same stutters on approach.

I'm running p3d v4.2 with the latest KMEM, addon manager, and fsuipc paid version. P3D is at 30 fps locked with vsync enabled. I have a I7-7700k at 4.6gz and a gtx 1080. I'm using orbx global, openlc NA, activesky. The weather was clear. I have disabled the ATC chatter in control tower in the youcontrol menu as well as disabled ground traffic and human animations. I have the latest nvidia drivers installed using the clean install method and I cleared the shaders folder after the new driver install.

The following are screenshots of my settings and the last is a screenshot of the addon manager:

https://i.imgur.com/7g2LDzJ.png

https://i.imgur.com/PADti4h.png

https://i.imgur.com/90NaEpU.png

https://i.imgur.com/E47hXBd.png

https://i.imgur.com/u0bQP3x.png

[virtuali]

Have you installed GSX ? It's mandatory for all our sceneries using SODE and, if you don't install it, lots of objects required by KMEM will not be installed, like docking systems, marshallers, jetways, etc., which will cause pauses when the sim is looking for them.

In any case, here's a video of a landing I just made at KMEM, showing it's very smooth:

[dawgfan58]

I do have GSX installed. I was just messing around changing settings and variables one by one to see if I could isolate the issue. Whenever I unchecked the "altitude cull" option this seemed to solve my issue.

[virtuali]

Whenever I unchecked the "altitude cull" option this seemed to solve my issue.

You said you use P3D 4.2. That option is greyed out in P3D 4.x and not selectable: I wonder how you were able to uncheck it, since it's not enabled.

[dawgfan58]

Whenever I unchecked the "altitude cull" option this seemed to solve my issue.

You said you use P3D 4.2. That option is greyed out in P3D 4.x and not selectable: I wonder how you were able to uncheck it, since it's not enabled.

I don't know. All I can tell you is I have the latest version of p3d v4 and I have all of your sceneries. They all have the option to tick or untick altitude cull and it is not greyed out. See the p3d version screenshot below and addon manager screenshots of KMEM and KDFW.

https://imgur.com/a/QrsI9mZ

https://i.imgur.com/o3JWvFQ.png

https://i.imgur.com/xPIxnkv.png

[virtuali]

That's how that option looks like here.

I cannot explain it, the only possible reason is some kind of other product that has prevented the Addon Manager to recognize P3D4 as such, like the Migration Tool, which is able to change the file version in the executable to force non-compliant addons to install into it.

However, if unselecting that option (which is not even possible to change in P3D4, normally), works for you and fixes stuttering, that's ok. In fact, it's precisely how is supposed to be in P3D4, lots of memory saving optimizations are not used when P3D4 is detected, which result in more memory used, which is not really a problem in 64 bit, and less stuttering.