Microstutter in 2.5 Caucasus

[wernst]

Caucasus 2.5 update looks brilliant.

 

But annoying microstutter, though seeing 60 fps most the time.

System settings to high, trees to 20%.

1.5 had never any display issues with same system settings.

 

PC: GTX 980 with (4 years old) high end PC, 16GB RAM

 

Which system setting might help to avoid micro stuttering?

[Flappie]

Bro, the answer is everywhere on the forum : for now, avoid combining Defered Shading and MSAA in the graphics panel of the game. You can try to deactivate ingame MSAA, then activate your gfx card own AA. See here for instance : https://forums.eagle.ru/showpost.php?p=3374939&postcount=9

 

You can then try and raise the number of trees, it worked well with my rig (GTX 980 + i5 + 16GB of RAM).

Edited February 2, 2018 by Flappie

[Mike68]

I was struggling with the microstutters too in 2.5. Was testing with the Su-25T Instant Action - Free Flight mission. Flying low and looking the woods on the left side of the canopy it was jumpy as hell, with a 60+ fps. Did a lot of experiments with the settings, in game and in Nvidia CP but no avail. Finally, I've found that it is somehow related to the shadows (for me at least). I've set the Shadows to HIGH, the Terrain Objects Shadows to FLAT, and no more micro-stutters! Thought, maybe it can help someone. Specs are: GTX 970, I7 4790 at 4GHz, 16gigs RAM, 1080p.

[REDEYE_CVW-66]

I had the same, but I renamed my metashaders folder (to let it rebuild) in user/saved games/dcs and they went away and I got 10+ additional FPS

[wernst]

I had the same, but I renamed my metashaders folder (to let it rebuild) in user/saved games/dcs and they went away and I got 10+ additional FPS

 

I gave it a try: I deleted metashaders for rebuild.

 

Result: The first 10 min flying stutter occured with an intervall of about 30 sec.

The intervall became longer land onger over time, it seems that finally stutter disappears fully.

As if some component needs to heat up, curious.

 

And fps increased at least with 15+, sometimes it was up to 85 fps.

[wernst]

I gave it a try: I deleted metashaders for rebuild.

 

Result: The first 10 min flying stutter occured with an intervall of about 30 sec.

The intervall became longer land onger over time, it seems that finally stutter disappears fully.

As if some component needs to heat up, curious.

 

And fps increased at least with 15+, sometimes it was up to 85 fps.

 

meanwhile I confirm that stutter disappears fully within 15 - 20 min. after game start.

In this time GPU heats up to 70 deg Celcius. It seems that regardless of settings, stutter is GPU temp related.

GPU is GTX 980, no overclocking.

[Mr_sukebe]

Highly unlikely to be temp related.

My guess is that as you start up, the game is rendering a whole bunch of items, but not everything on the map. As you then start flying, new un-rendered items pop up and need to be dealt with. As time goes on, there's very few items left to be rendered, and at that point you're good to go. That would also explain why deleting the older shaders folder works, as the games not trying to dig through tons of existing (and useless) files to find the correct ones.

[104th_Cobra]

Also try to bind processor affinity to DCS, test not using hyperthreading.

[wernst]

Highly unlikely to be temp related.

My guess is that as you start up, the game is rendering a whole bunch of items, but not everything on the map. As you then start flying, new un-rendered items pop up and need to be dealt with. As time goes on, there's very few items left to be rendered, and at that point you're good to go. That would also explain why deleting the older shaders folder works, as the games not trying to dig through tons of existing (and useless) files to find the correct ones.

 

ok, you might be right. I couldn't believe the temp thing by myself.

 

But - when I start a fully new scenery/terrain it makes a difference at which temp the GPU is.

When starting a new terrain/scenery right after leaving a different one but the GPU is still at above 60 deg C - no stutter! Even new rendering is needed as you explained.

 

The rendering thing sounds plausible, but it means, any system setting is of less importance, is it?

Just keep on playing until rendering is completed and your are fine, no stutter.

 

Question: If rendering keeps the system stuttering slow why are frame rates high?

[Fakum]

Also try to bind processor affinity to DCS, test not using hyperthreading.

 

Ive seen mention of the binding processor affinity, but how is it done? Add a line to autoexe? Wonder if that would do the same as Process Lasso? So many threads on this,,,

[104th_Cobra]

Ive seen mention of the binding processor affinity, but how is it done? Add a line to autoexe? Wonder if that would do the same as Process Lasso? So many threads on this,,,

In my case, I just configured the motherboard BIOS. No halt state and no hyperthreading. I made a BIOS profile, only for this.

 

Sent from my Nexus 7 using Tapatalk

[lemoen]

It is not temperature related. Its more likely that there's a bug related to shader cache or something, maybe some objects are never cached and they are cached while in a mission and the stutters occur as they get created.

[BitMaster]

Process Lasso is what you need. Set DCS to Single_Thread_Performance in PL, that will tie it to real physical cores only, no HT cores

[MadDog-IC]

Ive seen mention of the binding processor affinity, but how is it done? Add a line to autoexe? Wonder if that would do the same as Process Lasso? So many threads on this,,,

 

Here is an example of my autoexec.cfg for DCS World 2.5 with setting to use only the real 4 cores for intel I7, instructions are in the autoexec on how to set for other cpu core configs.

 

Place the Autoexec.cfg in the c:\Users\YOURUSERNAME\Saved Games\DCS.openbeta\Config\

 

Regards, Ian.

autoexec.cfg

[=Pedro=]

Thanks!

[sedenion]

Caucasus 2.5 update looks brilliant.

 

But annoying microstutter, though seeing 60 fps most the time.

System settings to high, trees to 20%.

1.5 had never any display issues with same system settings.

 

PC: GTX 980 with (4 years old) high end PC, 16GB RAM

 

Which system setting might help to avoid micro stuttering?

 

Reducing video memory usage might greatly help:

- Reduce Terrain Texture to low

- Reduce Textures to medium

- Reduce preload radius to ~30 0000

- Reduce visible range to bellow "High"

- Reduce shadow quality to Medium

 

With that, you could set tree to 100% without losing performance

[MadDog-IC]

Caucasus 2.5 update looks brilliant.

 

But annoying microstutter, though seeing 60 fps most the time.

System settings to high, trees to 20%.

1.5 had never any display issues with same system settings.

 

PC: GTX 980 with (4 years old) high end PC, 16GB RAM

 

Which system setting might help to avoid micro stuttering?

 

Another good source for your problem.

 

https://forums.eagle.ru/showthread.php?t=200906http://

Edited February 6, 2018 by MadDog-IC

[bolt69]

Hello Guys,

 

I am suffering the same stuttering problem and a guy posted a trick that fixed the issue (at least for some people).

 

Some of you have probably installed the game on a SDD HD. Good choice I would say BUT it seems important to move the C:\Users\'user's name'\Saved Games folder to the SDD as well.

 

So, here is the procedure to move this Saved Game folder :

- create a new saved game folder on your SSD

- go to the folder that hold your current Saved Game folder (normally, this is C:\Users\'user's name'\)

- Make a right clic on Saved Folder and select properties

- there is a tab called location, select it

-in this location tab, clic on Move and select the folder you created on your SSD. Windows will manage to move the files. That's it.

 

I hope it will help.

Thanks to Icemaker/C6 for the trick !!

[wernst]

Hello Guys,

 

I am suffering the same stuttering problem and a guy posted a trick that fixed the issue (at least for some people).

 

Some of you have probably installed the game on a SDD HD. Good choice I would say BUT it seems important to move the C:\Users\'user's name'\Saved Games folder to the SDD as well.

 

So, here is the procedure to move this Saved Game folder :

- create a new saved game folder on your SSD

- go to the folder that hold your current Saved Game folder (normally, this is C:\Users\'user's name'\)

- Make a right clic on Saved Folder and select properties

- there is a tab called location, select it

-in this location tab, clic on Move and select the folder you created on your SSD. Windows will manage to move the files. That's it.

 

I hope it will help.

Thanks to Icemaker/C6 for the trick !!

 

doesn't help here. Since installation the Saved Game Folder has alway been together with the game on the same SSD drive. (default by installation)

 

Surprisingly the stutter intervalls are becoming longer over time. Initially playing 2.5 the stutter occured each every 10 - 20 sec. Now the stutter interval is more than 2 minutes long. Will it disappear finally?

[bolt69]

Hello Wernst,

 

Thank you for the feedback. Some tricks work for some people and some do not. For me it did not help but it did for few others.

 

What you mentionned about the intervals of time getting longer and longer over time is interesting. I saw few people saying the same things. Is it due to some shader that get constructed as the game and time running or something else ? I wonder.

 

Just one question. The intervals is getting bigger and bigger for one session and then, when you start a new session (quit the game, reenter and restart a mission), you have once again frequent stuttering that get less and less frequent over time. Or, the 2 min interval you did mentionne is constant even if you quit the game and restart it ?

 

Thank you

[wernst]

Hello Wernst,

 

Thank you for the feedback. Some tricks work for some people and some do not. For me it did not help but it did for few others.

 

What you mentionned about the intervals of time getting longer and longer over time is interesting. I saw few people saying the same things. Is it due to some shader that get constructed as the game and time running or something else ? I wonder.

 

Just one question. The intervals is getting bigger and bigger for one session and then, when you start a new session (quit the game, reenter and restart a mission), you have once again frequent stuttering that get less and less frequent over time. Or, the 2 min interval you did mentionne is constant even if you quit the game and restart it ?

 

Thank you

 

no, the 2 min stutter interval isn't constant. Up to now I only can say:

After the 2.5 update the stutter was annoying. Now, after playing different modules for about 10 times (from start) the issue is there but doesn't spoil the fun that much anymore.

I can see now that the stutter occures more irregularily, let's say each 2 - 3 minutes.

It seem that over time the stuttering becomes less dominant. I wonder why?

 

The only thing I can definitively say is that with world 1.5.8 I can play stutter free - with the same hardware and without changing any heardware settings.