FPS drop after F10 map

[AhSoul]

ok HT is now off. I now have 2 physical cores instead of 2 logical cores pegged at 100% with DCS at the main menu.

Will play this evening and see if it feels like it plays better though.

[AhSoul]

Actually tried in-game now. Performance flying around in the Apache seems no different. Same amount of GPU headroom as normal. Same microstutters looking out the sides of the cockpit etc.

Swapping to the F-15E still gives me a minute of so of terrible FPS. Then it sorts itself and back to stable again.

So doesn't feel like it's hyperthreading that's the issue.

I don't seem to be suffering from the leaving F-10 thing much these days though. Might be upping to 64GB of RAM, might be since I installed https://www.digitalcombatsimulator.com/en/files/3336353/.

[AhSoul]

I could of course use Process Lasso to force DCS to never use 2 logical cores on the same physical core if I wanted.

[Richrach]

That might be part of the solution.  At least no you know more about the problem.  Sorry my suggestion did not seem to help.

Let me know if you do find the answer.  The analytical side of my brain wants to know.

 

Safe simming - Richrach

[MemphisBelle]

On 2/24/2024 at 4:23 AM, Bullant said:

I think I am seeing the same thing:

I have just started getting this problem with a Pimax Crystal, OpenXR, MT DCS.

In cockpit it beautiful, no lag at all, hit F10, the map comes up and it becomes a slideshow, literally locks up the entire PC, mouse doesn't even move.

Hit F1 and after a minute or 2 I am back in the cockpit and everything is perfect again.

This happens in both single and multiplayer, tested on both Persian Gulf and Syria.

Funny enough, it doesn't seem to happen on Caucasus in SP.

Holy Cow, you have these issues with an i7-13700k and a 4090? I run now a meta Quest 3 (see my Specs in my Sig) with quite a good performance. Whats the serving Program to run the Pimax Crystal? For all old a later Oculus and Meta Quest Headsets, its the meta link App on the PC, which comes with lots of tool to enhance the performance.

Edited May 5, 2024 by MemphisBelle

[Richrach]

My i5-12600/RTX-4070/Pimax 8K+ does not have anything like these issues.  It is baffling.  I thought it was hyperthreading with Ah's system.  I do not think it is a DCS bug or it would be more prevalent throughout the spectrum of users.

[AhSoul]

13 minutes ago, Richrach said:

My i5-12600/RTX-4070/Pimax 8K+ does not have anything like these issues.  It is baffling.  I thought it was hyperthreading with Ah's system.  I do not think it is a DCS bug or it would be more prevalent throughout the spectrum of users.

I've found a separate 20 page thread of people having issues like these with MT, so a lot of people are suffering from something. Whether it's all the same issue I'm not sure.

Shifting to 64GB and removing the VR hangar scene does seem to have possibly fixed my F10 issues though.

[kitten40]

I also just installed the VR Hanger Mod, and with just a very quick test, my stutters going from F10 and back to cockpit view seem to be gone. I will do a proper flight and test a little more thoroughly but as of right now it seems to be the fix for me. Thanks to everyone who has contributed to this thread ! Excellent information !

[Richrach]

A few things.

 

1.  Perhaps I need to pay more attention to the threads out there.  I did not realize the problem was affecting more people than just on this single thread.  I apologize for being less than informed.

2. I already had 64GB RAM, so having less was not in my wheelhouse.

3. Good to hear someone else who might have part of a solution!

Richrach

[kitten40]

3 hours ago, kitten40 said:

I also just installed the VR Hanger Mod, and with just a very quick test, my stutters going from F10 and back to cockpit view seem to be gone. I will do a proper flight and test a little more thoroughly but as of right now it seems to be the fix for me. Thanks to everyone who has contributed to this thread ! Excellent information !

After a couple of hours of taxiing, takeoffs, and landings, I can say that MOST of my issue is gone. Instead of stutters when going from the F10 map and back to cockpit, now I have just the very slightest hint of lag when turning my head quickly from side to side (on the ground). And it only seems to be present in the Apache and Tomcat (for me) and only on the ground. I did all my testing on the Marianas map and these are the only 2 aircraft showing any sort of issue after installing the mod. For my personal situation, I'm calling it a win. I'm much happier now than I was previously . Again thanks to everyone !

[AhSoul]

I think it's a lot better with that mod, though after 3-4 hours I start to see it again. Definitely nowhere near as bad though.

[AhSoul]

14 hours ago, kitten40 said:

After a couple of hours of taxiing, takeoffs, and landings, I can say that MOST of my issue is gone. Instead of stutters when going from the F10 map and back to cockpit, now I have just the very slightest hint of lag when turning my head quickly from side to side (on the ground). And it only seems to be present in the Apache and Tomcat (for me) and only on the ground. I did all my testing on the Marianas map and these are the only 2 aircraft showing any sort of issue after installing the mod. For my personal situation, I'm calling it a win. I'm much happier now than I was previously . Again thanks to everyone !

Marianas seems to be the least optimised map, so you might see issues there your don't see elsewhere.

[MoleUK]

14 hours ago, kitten40 said:

After a couple of hours of taxiing, takeoffs, and landings, I can say that MOST of my issue is gone. Instead of stutters when going from the F10 map and back to cockpit, now I have just the very slightest hint of lag when turning my head quickly from side to side (on the ground). And it only seems to be present in the Apache and Tomcat (for me) and only on the ground. I did all my testing on the Marianas map and these are the only 2 aircraft showing any sort of issue after installing the mod. For my personal situation, I'm calling it a win. I'm much happier now than I was previously . Again thanks to everyone !

The Apache and Tomcat are both very vram heavy vs other modules. And Marianas also performs the worst of all the maps. So you're in a worst case scenario there.

The F10 hanger mod is a godsend and they need to remove that hanger background as an option in the settings, not have it on as the default. It creates too many problems.

On 5/1/2024 at 12:03 PM, Reflected said:

Nope this didn't help. I'm still struggling with this very much. I really hope ED can figure out a solution finally.

ED can't fix the problem entirely, as you're also bumping into the meta specific vram overflow problem there. iirc you're on a 3070 yeah? You would need to switch from link to VD to sidestep most of the problems you're experiencing, as overflowing vram on quest link can be catastrophic. And flipping to F10 can and will trigger vram overflows due to the way DCS works, especially in VR on a GPU with less than 16 gigs of vram.

Edited May 6, 2024 by MoleUK

[kitten40]

7 hours ago, MoleUK said:

The Apache and Tomcat are both very vram heavy vs other modules. And Marianas also performs the worst of all the maps. So you're in a worst case scenario there.

 

 

Yes, that's why I am so happy about my specific outcome. Knowing that those 3 are heavy hitters and finally ending up with something that is perfectly usable now is just fantastic. I really hope that the solution that worked for me, is as simple for others who might be struggling with the same problem.

 

7 hours ago, MoleUK said:

The F10 hanger mod is a godsend and they need to remove that hanger background as an option in the settings, not have it on as the default. It creates too many problems.

This would be a blessing 

[KodiakVFA143]

Ok I will give this hanger mod a try.

In my case FPS stay stable on the top corner indicator, but the tracking ha ve a big delay always after check the f10 maps.

i7-14900k - AI overclock - stay lower than 90 C - Set with process lasso (this one save a lot of past issue)

4080 OC - 64 gb of ram

[piolin23000]

Hello to all members, I have the same problem as everyone present, I have already tried everything they say above and I have not achieved any improvement, I am trying the Apache in Marianas in Free Flight Mission Invader and the fps drop from being stable from 60 to 8-9 fps, you change from f1 to f10 and come back and it improves but it happens again after a few minutes, another one that also creates many drops in fps is changing from f10 to f2, I was testing the 3 possible combinations between f10 , f2 and f1 and at first I noticed a lot of improvement but after a while of flying and doing tests, the fps drop returned, the satisfaction only lasted a few minutes, after that I returned to the usual procedure of exiting the DCS screen and move on the desktop and return to DCS again to increase the FPS, I put the black screen hangar, activate and deactivate the multithead of the Bios, remove and put the LAsso and the ParkCore, down and high the DCS options, remove and put 32 mb and 64 mb, I moved the characteristics of my 3060ti video card until I set them by default, if I noticed that if I set the dcs visib range to minimum, it takes longer to overcome this problem, I went from DLSS to MXAA and returned to DLSS and Nothing happened, the only thing was that it took longer for the fps drop to arrive than normal, before the first time I put on the map the fps dropped and now after several attempts, the fps drop takes a while to arrive, but it does arrive I tried all of the above in Marianas map AH-64D Dawn Invasion, the same in free flight F15 in KOLA and the best option was not to enter the map to fly well, although sometimes changing f1-f2-f1 also lowers the fps but only for a few seconds

I have Meta Q3 i5 12600k, 3060Ti, 64 mb, M.2 2tb only for DCS and 1 TB for Win11,

 

i hope to DCS found the solution to this problem in VR ASAP

 

Happy Landings to all

[MoleUK]

18 hours ago, piolin23000 said:

Hello to all members, I have the same problem as everyone present, I have already tried everything they say above and I have not achieved any improvement, I am trying the Apache in Marianas in Free Flight Mission Invader and the fps drop from being stable from 60 to 8-9 fps, you change from f1 to f10 and come back and it improves but it happens again after a few minutes, another one that also creates many drops in fps is changing from f10 to f2, I was testing the 3 possible combinations between f10 , f2 and f1 and at first I noticed a lot of improvement but after a while of flying and doing tests, the fps drop returned, the satisfaction only lasted a few minutes, after that I returned to the usual procedure of exiting the DCS screen and move on the desktop and return to DCS again to increase the FPS, I put the black screen hangar, activate and deactivate the multithead of the Bios, remove and put the LAsso and the ParkCore, down and high the DCS options, remove and put 32 mb and 64 mb, I moved the characteristics of my 3060ti video card until I set them by default, if I noticed that if I set the dcs visib range to minimum, it takes longer to overcome this problem, I went from DLSS to MXAA and returned to DLSS and Nothing happened, the only thing was that it took longer for the fps drop to arrive than normal, before the first time I put on the map the fps dropped and now after several attempts, the fps drop takes a while to arrive, but it does arrive I tried all of the above in Marianas map AH-64D Dawn Invasion, the same in free flight F15 in KOLA and the best option was not to enter the map to fly well, although sometimes changing f1-f2-f1 also lowers the fps but only for a few seconds

I have Meta Q3 i5 12600k, 3060Ti, 64 mb, M.2 2tb only for DCS and 1 TB for Win11,

 

i hope to DCS found the solution to this problem in VR ASAP

 

Happy Landings to all

Unfortunately the reason you can only delay it rather than prevent it is you're pushing VR on 8 gigs of vram. Because DCS is so vram heavy, you can only delay it from happening not prevent it. Though it you fly low vram modules it might prevent it entirely. The Apache is perhaps the most vram heavy of all the modules however.

The only things that will realistically reduce it from happening so often is 1: Reduce texture details to medium/low, 2: Reduce resolution, 3: Use texture optimisation mods (breaks IC), 4: Use virtual desktop instead of oculus link, or use oculus killer to at least reduce links vram overhead, 5: Use the VR hanger mod, 6: Set F10 to centre on top of the aircraft, moving the F10 map around will increase vram usage so having it locked can help.

There might also be one further tweak you can try, I never tested it's affect on vram. It was primarily a way to reduce CPU usage when the ST build was the only option, but as it reduces the unit draw distance it might help in busier missions with lots of units:

That being said, any GPU with 24 gigs of vram won't experience this problem simply because it won't overflow. 16 gigs will make do for most missions, but particularly heavy ones will overflow past 16 occaisionally.

Edited May 8, 2024 by MoleUK

[Captain Gaming]

im gonna throw my hat in the ring here. 
specs: i9 11900K, EVGA 3080TI, 32gb of ram. HTC VIVE PRO 2. windows 11 

i usually get about 45-46 frames, no idea how to make it go higher cause thats all ive ever seen. but i def get the F10 map issue. it locks up my whole system to where my mouse barely works. cant really alt tab and usually have to quite entirely out of DCS for it to free up. i cant use OPENxr cause the vive has to use the steamvr system. which sucks cause everytime i close out of steamvr it locks up my system. (not the issue im trying to fix) BUT im at a loss of why this is happening. i tried PL but it ended up screwing over my CPU for everything else. 

i dont have P core or E core. so no idea whats capping my system with performance. for me its any map any module. SP or MP. it does it. 

[Mercator]

Last two days I played the Kola map which seems to be a demanding map. I also experienced this F10 issue.

However as a workaround I noticed that when the map is centered on the player (arrow icon) I don't experience the issue. Whatever the map scale !

If I disable the map centering to zoom on an airport etc. and I forget to put it back, I have a big lag after pressing F1 (which sometimes crashes SteamVR). If I put it back BEFORE pressing F1 I don't have the issue.

I am using the Vive Pro 2 headset.

[AhSoul]

I'm getting it a lot less after moving to 64GB RAM and a 4080Super with more VRAM. Still happens, but not as regularly or as bad.

[Captain Gaming]

On 5/10/2024 at 4:48 AM, Mercator said:

Last two days I played the Kola map which seems to be a demanding map. I also experienced this F10 issue.

However as a workaround I noticed that when the map is centered on the player (arrow icon) I don't experience the issue. Whatever the map scale !

If I disable the map centering to zoom on an airport etc. and I forget to put it back, I have a big lag after pressing F1 (which sometimes crashes SteamVR). If I put it back BEFORE pressing F1 I don't have the issue.

I am using the Vive Pro 2 headset.

ill def have to try this, what GPU and CPU do you use? also does ur steamvr lock up ur system when you try to close it? im curious if its a vive thing

[Mercator]

1 minute ago, Captain Gaming said:

ill def have to try this, what GPU and CPU do you use? also does ur steamvr lock up ur system when you try to close it? im curious if its a vive thing

I have an Intel 13700, and a nVidia RTX 4080. When SteamVR hangs the game continues on the mirror screen but is frozen in the headset. Windows continues as normal. When I close the Vive console (which at that moment mentions a problem with SteamVR) then SteamVR and DCS close as well.

[Captain Gaming]

1 minute ago, Mercator said:

I have an Intel 13700, and a nVidia RTX 4080. When SteamVR hangs the game continues on the mirror screen but is frozen in the headset. Windows continues as normal. When I close the Vive console (which at that moment mentions a problem with SteamVR) then SteamVR and DCS close as well.

interesting, i have a 11900k 3080ti. but i tend to only get 45 frames at most ingame and when i close dcs, it closes fine. then when i tell steamvr to close it locks up everything for a few minutes and then steamvr says it encountered an issue. (no kidding) but ive tried completely wiping my system and trying it and it does the same thing. so im chalking it up to steam being steam 

[MemphisBelle]

On 5/10/2024 at 12:00 PM, AhSoul said:

I'm getting it a lot less after moving to 64GB RAM and a 4080Super with more VRAM. Still happens, but not as regularly or as bad.

What headset do you have? I do not have anymore of those effects in my Quest 3 since I´ve added a higher Bitrate value in OculusDebugTool

[AhSoul]

51 minutes ago, MemphisBelle said:

What headset do you have? I do not have anymore of those effects in my Quest 3 since I´ve added a higher Bitrate value in OculusDebugTool

Quest3. I'm using VirtualDesktop. I wasn't talking about constant stutter there - I have none of that. I was talking about the FPS stutters/drops after coming out of F-10. I'm not sure why bitrate would affect that specific situation.

Oddly the stuttering was a lot worse last night - It would last for a good minute or two before going away. Only thing I can think of that was different to the last week's flying was that I was using the Viggen pretty much exclusively last night.

Edited May 17, 2024 by AhSoul