Frame rate problems: trying to understand why

[Tomsk]

So I've been trying to play MBot's dynamic campaign, which looks amazing (as a big fan of dynamic campaigns). However, I've been having framerate issues as in < 20 fps with every setting at absolute minimum, using a powerful computer (3.5Ghz Quad Core, GTX 1080, 16 Gb RAM).

 

NOTE: This is NOT a 2.5 specific issue, I get the same behaviour in 1.5.

 

So I've been trying to understand why. So:

• Flying round the empty caucuses map in 2.5 is smooth as butter, great stable framerates. No complaints.
  
• Flying round the caucuses map for an MBot generated mission is terrible < 20 fps.
  

 

Now MBot's dynamic campaign does create a lot of AI units (several hundred by the looks of it). Thinking these might cause the issue I did some experiments:

• Since I do have a second (powerful) computer to run as a dedicated server I thought I'd do that. This way I can offload all the expensive CPU calculations for the AI units to my dedicated server, and my client can just focus on rendering.
  
• The result is that it makes absolutely no difference if I do that. I get the exact same framerate issues (and infact very similar frame rate), even if I have a second dedicated rig running as a server for the mission. Also as a side-note, the Comms Menu appears to be completely broken in multiplayer.
  

 

My next thought was that it must be rendering all these units that causes the problem. So still running the mission on my dedicated server and connecting with my desktop, I flew off out into the middle of the sea where I could not see any other unit, or even anything other than sea. The result was the same, the exact same < 20 FPS framerate.

 

The only possible explanation I can come up with is that DCS is offloading the AI workload onto the clients, even when you are running a seperate server. In any case I'm at a total loss where to go next :(

 

NOTE: I'm not saying that this is automatically a bug, and I've not tried it on 1.5 yet to see if it's a problem there. This is more a "does anyone understand what's actually going on here, and what can be done about it".

Edited April 7, 2018 by Tomsk

[Flappie]

Hi Tomsk, NineLine explained the situation here : https://forums.eagle.ru/showpost.php?p=3444654&postcount=1

Let's hope it won't last long.

[Tomsk]

No that's not it, when I say everything turned down to minimum I mean it :) DCS is only using 3.8Gb of RAM in total, which is definitely not taxing for a 16Gb machine.

 

EDIT: And I can also now confirm this is NOT a 2.5 specific issue, I get the exact same behaviour in 1.5.

Edited April 7, 2018 by Tomsk