DCS Stutters (All Low Graphics)

[FutureNightmares]

So I downloaded the new Iraq map on DCS. Prior on maps like caucuses on max settings, id be running at well above 90fps on all altitudes. but recently at low altitudes on the new update I stutter and drop to as low as 5fps. I get the exact same experience by turning everything low or off in DCS.

I have all my drivers up to date. hotplug disabled, windows game mode disbaled, hardware accelerated GPU scheduling disabled. I've made sure to triple check temperatures and hardware to make sure everything is working fine. and everything is working at normal temperatures, all cores and threads are working and there no ram leakage. I've done everything I can and help with from other members also talking to BIGNEWY on discord to help troubleshoot with basic stuff. and still no dice. 

Logs are attached as well as dxdiag.

dcs.log

[BIGNEWY]

thanks for the chat on discord and for posting here, please also attach the dxdiag file, it will give us a look at the system configuration also. 

 

[FutureNightmares]

sorry needed to post the dxdiag file my bad 

DxDiag.txt

[BIGNEWY]

thank you, we will take a look 

[FutureNightmares]

18 minutes ago, BIGNEWY said:

thank you, we will take a look 

did fresh driver install still stuttering bad

dcs.log

[Flappie]

You installed DCS on a HDD. This is not recommended. HDDs are very slow. I know DCS takes a lot of space, but try to put it on an SSD and see if the issue disappears.

In the case DCS was already installed on your HDD before you had this issue, can you please attach your Export.lua file? It is located here: Saved Games/DCS.../Scripts/Export.lua

If you are using OneDrive, Google Drive or any other cloud storage utility, try and close it before running DCS. If you have USB storage devices plugged in, remove them before running DCS.

Edited December 20, 2024 by Flappie

[FutureNightmares]

6 minutes ago, Flappie said:

Can you please attach your Export.lua file? It is located here: Saved Games/DCS.../Scripts/Export.lua

I'm looking for a lead:

• If you are using OneDrive, Google Drive or any other cloud storage utility, try and close it before running DCS.
• If you have USB storage devices plugged in, remove them before running DCS.

I see you have 3 HDDs in your PC. Can you confirm DCS is installed on your SSD?

DCS is on my SSD and i dont have a scripts folder in my dcs saved games

[BIGNEWY]

3 minutes ago, FutureNightmares said:

DCS is on my SSD and i dont have a scripts folder in my dcs saved games

Can you confirm that as your log says 

D:\Program Files\DCS World\bin/DCS.exe

but your dxdiag says 

Drive: D
 Free Space: 561.7 GB
Total Space: 1907.1 GB
File System: NTFS
      Model: ST2000DM006-2DM164

Which is a HDD

might be worth doing a defrag on the D drive 

[FutureNightmares]

2 minutes ago, BIGNEWY said:

Can you confirm that as your log says 

D:\Program Files\DCS World\bin/DCS.exe

but your dxdiag says 

Drive: D
 Free Space: 561.7 GB
Total Space: 1907.1 GB
File System: NTFS
      Model: ST2000DM006-2DM164

Which is a HDD

oops it looks like it is on an HDD i was sure that was my SSD. i did have it on my C drive and my F drive and still experienced the same issue. i can transfer it to my F drive and see if that resolves

 

[BIGNEWY]

Just bear in mind its only your C drive that is the SSD 

 

[FutureNightmares]

1 minute ago, BIGNEWY said:

Just bear in mind its only your C drive that is the SSD 

 

no i have a samsung evo ssd. some reason its showing it as an HDD. my C drive is an M.2

 

[BIGNEWY]

It looks like your C drive as three partitions. 

[Grindmetal]

it's normal for the C drive to have partitions like this

[BIGNEWY]

5 minutes ago, Grindmetal said:

it's normal for the C drive to have partitions like this

Yes it was more of a comment that it is showing as a SSD with three partitions. 

[FutureNightmares]

1 hour ago, BIGNEWY said:

It looks like your C drive as three partitions. 

seems that moving it to my m.2 has removed most of the stutters but still micro stutters occasionally. but that could be iraq itself 

dcs.log

[Grindmetal]

1 hour ago, FutureNightmares said:

DCS is on my SSD and i dont have a scripts folder in my dcs saved games

I solved the stuter by leaving the preload options at 30000 try this 
try increasing the pagefile too

Edited December 20, 2024 by Grindmetal

[Flappie]

19 minutes ago, Grindmetal said:

try increasing the pagefile too

Windows gives his PC a default 4 GB of pagefile, which is enough with his 64 GB of RAM.

Raising the pagefile is only worth it when a user has less than 64 GB of RAM.

21 minutes ago, Grindmetal said:

I solved the stuter by leaving the preload options at 30000 try this

Yes, this option eats up a lot of RAM. When in doubt, set it to the minimum. Then when the performance issue is solved, try to raise it gradually, but only if needed.

[Flappie]

On 12/20/2024 at 12:04 PM, FutureNightmares said:

no i have a samsung evo ssd. some reason its showing it as an HDD. my C drive is an M.2

 

Yes, but your D:\ drive (on which DCS is installed) is the "ST2000DM006-2D3164", which is a HDD.

[Ready]

On 12/20/2024 at 1:40 PM, Flappie said:

Windows gives his PC a default 4 GB of pagefile, which is enough with his 64 GB of RAM.

Raising the pagefile is only worth it when a user has less than 64 GB of RAM.

Yes, this option eats up a lot of RAM. When in doubt, set it to the minimum. Then when the performance issue is solved, try to raise it gradually, but only if needed.

So I was running a simple mission (A-10C NTTR Target practice with only a handful of stationary targets) to test some performance things. I turned on LatencyMon to look at my interrupts and noticed that DCS was quite heavily using the SSD in a mission where I did not make many miles.

In about 10 minutes there were about 14.000 'Hard Pagefaults' created, because certain info was not in my RAM. I created a swapfile of 64GB, so I would assume most of the stuff is loaded into RAM at the start of the mission.

Some of this SSD-reading is probably the cause of frametime spikes because I sometimes saw a dip when I was looking in a certain direction where there is some stuff on the ground.
My current preload Radius is set to 100.000, will try lower and higher settings to see what it does. Might even move DCS to a faster SSD to see if that helps. 

Any thoughts?

[Czar66]

On 12/20/2024 at 8:04 AM, FutureNightmares said:

no i have a samsung evo ssd. some reason its showing it as an HDD.

 

16 minutes ago, Ready said:

Any thoughts?

-If the name of your SSD given by the system is the name of an old HDD that was using that sata slot, remove the drive through windows device manager with 'right click -> "uninstall device" and then restart the PC. I had swapped a smaller SSD to a new one and had the issue where the hardware was kept until I done the "uninstall device" command and then restarted windows. It should build back an internal ID of the correct hardware name. No need to open the PC physically.

-Reduce Preload radius
-Make sure your pagefile is on a SSD. (NVME recommended) and it doesn't need to be massive as 60gb. 30gb is already pushing.
-Try Visibility Range on Ultra instead of Extreme.
-Make sure you don't have too much bloat on your system as in active background apps.
-Remove or Reduce overclocks made on CPU outside factory settings.

[Ready]

4 minutes ago, Czar66 said:

 

-If the name of your SSD given by the system is the name of an old HDD that was using that sata slot, remove the drive through windows device manager with 'right click -> "uninstall device" and then restart the PC. I had swapped a smaller SSD to a new one and had the issue where the hardware was kept until I done the "uninstall device" command and then restarted windows. It should build back an internal ID of the correct hardware name. No need to open the PC physically.

-Reduce Preload radius
-Make sure your pagefile is on a SSD. (NVME recommended) and it doesn't need to be massive as 60gb. 30gb is already pushing.
-Try Visibility Range on Ultra instead of Extreme.
-Make sure you don't have too much bloat on your system as in active background apps.
-Remove or Reduce overclocks made on CPU outside factory settings.

Thanks I did not have any HDD's in this install. Will check smaller preload radius. System is pretty much debloated and tweaked, per my changelog. Will test to see if overclock CPU is a cause.