Game Performance Issues on High Resolution Displays

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All Forums >> [New Releases from Matrix Games] >> Command: Modern Operations series >> Tech Support >> Game Performance Issues on High Resolution Displays

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Game Performance Issues on High Resolution Displays - 12/2/2017 6:10:25 PM

perperson

Posts: 2
Joined: 12/2/2017
Status: offline

Hello -

I've newly purchased CMANO, and I'm really enjoying it! But I'm being plagued by a near show-stopper performance issue that I'm hoping someone may be able to help with.

I'm playing Command on a Windows 10 system with an i7-7700K, GTX 1070, and a 2560x1440 monitor. I have read the sticky on running command on 4K/UHD monitor. I am using the default performance options.

I am having performance issues when running almost any scenario in the game. For the purposes of this thread I'm talking about the performance in the air tutorial. I didn't include a game file since this occurs for basically any scenario, especially larger ones.

In real time mode the game seems to run in close to real time most of the time, but there are frequent (maybe 5 or so times every 15 seconds) pauses between updates, of maybe 100 to 1000ms. This gives a prominent stuttering effect. If I change the game to run at rates higher than real time, the game doesn't seem to be able to keep up. Most of the time the clock advances slower then 5x, then I will get periods where the game seems to "catch up", and the clock might advance 5 minutes in 1 second. This makes the game essentially unplayable for larger or longer scenarios.

If I make the game window smaller performance improves dramatically, so I was thinking it might be related to the screen resolution in some way. I also noted that CPU usage seems to be 100% on one core, which is probably the cause of the stuttering.

I didn't notice any UI scaling issues, but I did apply the fix as described in the high DPI display sticky - modifying the registry, deleting the ini file, and changing the compatibility settings on both the auto launcher and the game. If it made any improvement it was a small one.

I also tried lowering the resolution to 1920x1080, which performs much better. Even at that resolution though I still get stuttering, but less often and for a much shorter duration. Maybe that is normal for the game?

Is this a known issue or limitation? Is there any fix for this behavior?

Post #: 1

RE: Game Performance Issues on High Resolution Displays - 12/2/2017 6:53:49 PM

thewood1

Posts: 6529
Joined: 11/27/2005
Status: offline

This thread doesn't address your issue, but it shows that I can run on 3000x2000 with no issues with both an nVidia and Intel GPUs. I would think there must be some other issue than resolution. But I'll step back and let someone who knows more of the details help out.

http://www.matrixgames.com/forums/tm.asp?m=4388853

Side note...I have tested Command on several resolutions (low to high) with no noticeable difference in performance.

(in reply to perperson)

Post #: 2

RE: Game Performance Issues on High Resolution Displays - 12/2/2017 8:36:08 PM

ComDev

Posts: 5735
Joined: 5/12/2006
Status: offline

Errrrr... anyone else seen this?

_____________________________

Developer "Command: Modern Air/Naval Operations" project!

(in reply to thewood1)

Post #: 3

RE: Game Performance Issues on High Resolution Displays - 12/10/2017 1:12:25 AM

perperson

Posts: 2
Joined: 12/2/2017
Status: offline

Just wanted to add an update to this: I've figured out that the game playing "catch up" is actually a feature I didn't understand. I had not realized that the time acceleration changes just by mousing over the speed multiplier, with no need to close the menu to select.

However, this issue of the speed of the game changing significantly with window size persists.

(in reply to ComDev)

Post #: 4

RE: Game Performance Issues on High Resolution Displays - 12/12/2017 6:57:58 PM

I1066

Posts: 77
Joined: 10/22/2013
Status: offline

To really get to the bottom of something like this you most likely need to use "Windows Performance Analyzer"
https://docs.microsoft.com/en-us/windows-hardware/test/wpt/windows-performance-analyzer

It's a VERY sophisticated tool so you should probably just do a recording with it, and then send it to the command development team. They will have to PDBs for the game and can then more easily figure out what's going on.
Just make sure you do as short recoding as possible, and that you shutdown any non essential applications and services to limit the background noise.

(in reply to perperson)

Post #: 5

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