When using DLSS - Constant stuttering!

[goot66]

I notice when i use DLSS, i get constant stuttering during flight (every 10s or so) which makes it very annoying

without DLSS the game runs fine and very smooth 

[SkateZilla]

Generally a little more information is required, 

System Specs, 
DCS Settings,
Etc Etc..

Simply saying "I get stuttering with this, but not with that" with zero context, will not get you a solution.

[psychotik2k3]

On 3/3/2024 at 2:03 PM, SkateZilla said:

Generally a little more information is required, 

System Specs, 
DCS Settings,
Etc Etc..

Simply saying "I get stuttering with this, but not with that" with zero context, will not get you a solution.

Well i have to admit that i do have the exact same problem.
when i enable the DLSS in balanced mode, i get a higher max FPS but it comes with lots of stuttering some lasting few seconds.
my hardware is I7 12700k +3080 founder +32Gig ram, windows 11 (not 24H2 because i still want to use my hp reverb G2)
dcs was updated today.

graphic preset high running on 3440x1440

i tested back and forth. simply instant action on a10c and here it is i go from 144 to 165+fps but the 1% low fps drop sometimes to 1 due to stutters.

what else do you want as information ?

thanks

[Flappie]

Try this: Right-click "bin/DCS.exe" -> Properties -> Compatibility -> Tick "Disable Full Screen Optimization", then click "OK".

And just in case you are using "bin-mt/DCS.exe" instead, give it the same treatment.

[psychotik2k3]

21 hours ago, Flappie said:

Try this: Right-click "bin/DCS.exe" -> Properties -> Compatibility -> Tick "Disable Full Screen Optimization", then click "OK".

And just in case you are using "bin-mt/DCS.exe" instead, give it the same treatment.

i thought that we should not use bin-mt anymore as it's merged into the main one and multithread is always on.

one thing i noticed, because i had issues with trimming the A10C because Forcefeedback is checked by default.
once i unchecked it i was able to fly wihtout needed to pitch the plane but also the stutter where less dramatics, i mean i do see stutterring and the 1% low fps is like 30-40fps compared to to 1-2 fps low when having force feedback enabled.

i will try this and tell you the result

 

[Flappie]

10 minutes ago, psychotik2k3 said:

i thought that we should not use bin-mt anymore as it's merged into the main one and multithread is always on.

You can use it, but it will be removed in time (bin-mt and bin now contain the same files). I told you about bin-mt because some players are not aware which DCS.exe they are using.

[HansPeter1981]

Are you able to monitor VRAM usage!? If so compare DLSS on vs off... looks like your generation of GPU is rather limited in VRAM to begin with...

Edited February 9 by HansPeter1981
Grammar

[LucShep]

Yeah, I agree with @HansPeter1981, it does look like a description of a GPU with exhausted VRAM. 

@goot66 and @psychotik2k3 can you please try again after changing the game options "Textures" at LOW and "Terrain Textures" at LOW?

Just for testing purposes to see how it impacts, and if it improves the issues you mention - if it does, it's definitely VRAM related as suspected.


I'd also suggest to consider doing the following:
 

• If using less than 64GB of RAM (48GB, 32GB, or less), setting the pagefile fixed to at least 32GB (32768 in both initial and max size) and set on the fastest drive of your system (be it NVME or SSD). It helps tremendously with games that use lots of VRAM (like DCS) sometimes exceeding its limits, then also possibly exhausting the RAM - when that happens, it's then assisted by pagefile (aka virtual memory).
   
• Disabling HAGS. For most systems it's best left OFF (disabled) because it can introduce issues such as stuttering and hitching, and will increase VRAM consumption.
  Should only be enabled in rare cases where the CPU is vastly weaker than the GPU (not true on most gaming systems), as enabling it makes the GPU's scheduling processor and memory (VRAM) take over work that should be done by the CPU and, of course, it does penalize GPU resources.
   
• Using a higher performance power plan in Windows such as the Ultimate Performance Power Plan (enabling it before lauching the game, reverting to "Balanced" after exiting it). While peak performance won't be all that improved, it can benefit things once in game, to reduce stuttering and hitching issues.
   
• Disabling Core Parking, as it's a feature meant for laptops and office PCs. Disabling it can reduce micro-stutters when playing games or using resource-heavy apps.
  There's also a newer (free) application called ParkControl which handles this better on modern CPUs, along with Windows power plans.
   
• Disabling HPET and Dynamic Ticks, as it allows unrestricted I/O to occur, and helps to decrease micro-stuttering and hitching that may occur during gameplay.
  Meant for portable and battery systems, can be a problem for desktops, it's known to cause issues especially when gaming.
   
• Disabling VBS / HVCI if the system is meant for gaming - this setting is useless in such case, and disabling it can benefit performance when gaming. 
   
• Enabling rBAR (if using NVIDIA GPU 30, 40 and 50 series). While benefits for DCS are debatable (or non felt), it benefits too many games for it not to be used.
  
  
   

Edited February 10 by LucShep

[psychotik2k3]

3 hours ago, LucShep said:

Yeah, I agree with @HansPeter1981, it does look like a description of a GPU with exhausted VRAM. 

@goot66 and @psychotik2k3 can you please try again after changing the game options "Textures" at LOW and "Terrain Textures" at LOW?

Just for testing purposes to see how it impacts, and if it improves the issues you mention - if it does, it's definitely VRAM related as suspected.


I'd also suggest to consider doing the following:
 

• If using less than 64GB of RAM (48GB, 32GB, or less), setting the pagefile fixed to at least 32GB (32768 in both initial and max size) and set on the fastest drive of your system (be it NVME or SSD). It helps tremendously with games that use lots of VRAM (like DCS) sometimes exceeding its limits, then also possibly exhausting the RAM - when that happens, it's then assisted by pagefile (aka virtual memory).
   
• Disabling HAGS. For most systems it's best left OFF (disabled) because it can introduce issues such as stuttering and hitching, and will increase VRAM consumption.
  Should only be enabled in rare cases where the CPU is vastly weaker than the GPU (not true on most gaming systems), as enabling it makes the GPU's scheduling processor and memory (VRAM) take over work that should be done by the CPU and, of course, it does penalize GPU resources.
   
• Using a higher performance power plan in Windows such as the Ultimate Performance Power Plan (enabling it before lauching the game, reverting to "Balanced" after exiting it). While peak performance won't be all that improved, it can benefit things once in game, and help with stuttering and hitching.
   
• Disabling Core Parking, as it's a feature meant for laptops and office PCs. Disabling it can reduce micro-stutters when playing games or using resource-heavy apps.
  There's also a newer (free) application called ParkControl which handles this better on modern CPUs, along with Windows power plans.
   
• Disabling VBS / HVCI if the system is meant for gaming - this setting is useless in such case, and disabling it can benefit performance when gaming. 
   
• Disabling HPET and Dynamic Ticks, as it allows unrestricted I/O to occur, and helps to decrease micro-stuttering and hitching that may occur during gameplay.
  Meant for portable and battery systems, can be a problem for desktops, it's known to cause issues especially when gaming.
   
• Enabling rBAR (if using NVIDIA GPU 30, 40 and 50 series). While benefits for DCS are debatable (or non felt), it benefits too many games for it not to be used.
  
  
   

thanks, yes it was apparently a vram limit... disabling the gpu scaling was enough apprently. (i also disabled core parking using parkcontrol)
i don't want to disable VBS as i use this computer to work too.

 

so thank you all for your answers. i was able to test DCS with transofrmer dlss in performance mode.
i didn't really noticed any difference with native (1440p)
will see how it behaves in VR