micro stuttering

[Emil_Junus]

I have micro stuttering (idk if it is since last patch) when I am playing MP. Same also in SP with lots of objects or planes.

 

Intel i4790K

8GB RAM

GeForce GTX 970 4GB

Windows 8.1

SSD

 

CPU is at 20%, RAM at 20-40%.

 

FPS are always between 50-60

 

I tried everything - w/ & w/o VSYNC, FPS limiter and so on. Also the same if I set graphics all the way to LOW.

-> FPS still same & microstuttering with slightly decreased FPS when there are 10 planes in SP or even if I am in MP at 64 players, but no one is around me and I am at the end of the map.

[No_85_Gramps]

I noticed some stuttering in MP last night while flying. Haven't had a chance to take a closer look in MP. SP seems fine on this end.

[LLv24_Zami]

Imo performance has gotten better with latest patch. At least that what it feels after couple of days. I play SP.

 

OP, what backround apps do you have when playing if any?

Maybe they cause the stuttering because your hardware is up to the job.

Edited October 2, 2015 by Zami

[Juri_JS]

You can try the following:

 

Open the IL-2 Sturmovik Battle of Stalingrad\data\updater\3rd_party\dx folder and start DXSETUP. Re-Installing DirectX fixed the microstuttering issue for some people.

[Emil_Junus]

CPU & RAM at max 50% i think, no other big Apps running. I downloaded CPU-Z

Could you check if that is okay?

 

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Other games like witcher 3 are running also smoothly on 60 FPS with full graphics

Edited October 2, 2015 by Emil_Junus

[Emil_Junus]

I'd like to reinstall my IL2, but I want to save my control (also curves & head positions) and camera settings. Where can I find them?

Edited October 2, 2015 by Emil_Junus

[LLv24_Zami]

I'd like to reinstall my IL2, but I want to save my control (also curves & head positions) and camera settings. Where can I find them?

 

At least controls are saved in data/input folder. Copy the whole folder. About camera settings I don`t know.

 

Do you have hyperthreading on or off? What`s your Windows power profile?

 

What Nvidia settings do you use?

[Emil_Junus]

At least controls are saved in data/input folder. Copy the whole folder. About camera settings I don`t know.

 

Thanks!

 

 

Do you have hyperthreading on or off? What`s your Windows power profile?

 

 

I don't know how to look for that or change that ... ?

 

 

What Nvidia settings do you use?

 

I tried EVERYTHING, I mean, default, different combinations and so on. Its strange. Game feels smothly, but when I look around its like the view makes "tic,tic,tic" for fractions of seconds.

[=LD=Penshoon]

I'd like to reinstall my IL2, but I want to save my control (also curves & head positions) and camera settings. Where can I find them?

Pretty sure what you want to backup is the "Input" folder (in the data folder) the "Snapviews" folder (in data/luascripts) and Startup.cfg file (in the data folder)

 

They should contain all the settings, views and controls that you have saved. 

[LLv24_Zami]

I don't know how to look for that or change that ... ?

 

 

Hyperthreading setting you find in Bios in CPU settings. It is best to be turned off.

 

Windows power plan you find in Control Panel/Power Options. You can set that to High Performance.

 

 

I tried EVERYTHING, I mean, default, different combinations and so on. Its strange. Game feels smothly, but when I look around its like the view makes "tic,tic,tic" for fractions of seconds.

 

I find that in NVIDIA control panel default settings are the best for performance. There are one exception, turn Power Management Mode to Prefer Maximum Performance.

Edited October 2, 2015 by Zami

[Dutch2]

You can try the following:

 

Open the IL-2 Sturmovik Battle of Stalingrad\data\updater\3rd_party\dx folder and start DXSETUP. Re-Installing DirectX fixed the microstuttering issue for some people.

Think there is no updater folder when using the steam version. 

 

BTW topic starter I can not read your included picture, it is to small to read. 

Edited October 2, 2015 by Dutch2

[Juri_JS]

Think there is no updater folder when using the steam version. 

Any other dx 9.0c installer can be used too.

[Dakpilot]

Have you used the modified terrain.cfg edit?

 

although personally I am using a very high resolution i have noticed GPU Vram (and page file 10GB+) usage steadily climbing during a mission until over 4GB (problem) this may have an affect at other high resolutions

 

After returning to the standard (deleted mod terrain.cfg) the issue is resolved and standard  4X gives satisfactory results

 

As I am pushing my GPU very high I have also noticed some evidence of microstuttering even at acceptable FPS, backing down on some of the settings results in smoother gameplay, for example changing from 'quality' to 'performance' in Nvidia CP Texture filtering - quality settings

 

I get the impression that even though FPS is good enough, something is being pushed slightly too hard in the GPU process if settings are on the verge/edge of being too high

 

These observations may not be related to your issue of course

 

Cheers Dakpilot

Edited October 4, 2015 by Dakpilot

[Emil_Junus]

Hyperthreading setting you find in Bios in CPU settings. It is best to be turned off.

 

Windows power plan you find in Control Panel/Power Options. You can set that to High Performance.

 

 

 

I find that in NVIDIA control panel default settings are the best for performance. There are one exception, turn Power Management Mode to Prefer Maximum Performance.

 

Is it easy to turn Hyperthreading off in BIOS?

Everything in High Performance Power Plan is set to max performance.

 

 

BTW topic starter I can not read your included picture, it is to small to read. 

 

There was a bracket missing, sorry. You should be able to click it now. (That is right after I exited the game, after running GPU-Z in background) 

 

 

Have you used the modified terrain.cfg edit?

 

although personally I am using a very high resolution i have noticed GPU Vram (and page file 10GB+) usage steadily climbing during a mission until over 4GB (problem) this may have an affect at other high resolutions

 

After returning to the standard (deleted mod terrain.cfg) the issue is resolved and standard  4X gives satisfactory results

 

 

 

I changed that when it was possible, before they removed that. Or is it still there & somewhere else?

 

 

 

 

I played on WOL and there is a mission, which I played a lot of times before and where I had no microstuttering before - maybe just a bit, but not that it is unflyable. But since I have the massive micro stuttering in the same mission over same targets & same amount of planes in dogfight, microstuttering is that heavy, it is unpossible to aim. BUT only, when looking around with TIR or turning the aircraft or chaning the view with the mouse. If I have a static view - that means, when I don't turn the head of the pilot & I am flying in one direction, without changing course, everything runs smooth like a hot knife through warm butter. The thing is. On the same day, when the new patch came out, I also installed a lot of windows 8.1 updates + an nvidia driver update.

 

So maybe it is IL2, windows or nvidia. I installed the old nvidia driver and nothing changed, so only IL2 patch (reinstalling il2 didn't change anything) or windows updates are left. Today I installed windows 10 and will test it again this evening. Strage thing is - if it would be the patch, I wouldnt be the only one with microstuttering. But on the other hand my rig should not have problems at 1920x1080 with 60 FPS.

 

 

BTW, thanks to everyone who helps (:

Edited October 4, 2015 by Emil_Junus

[coconut]

If the windows update included some .net components, the system will typically build native images of the new dlls when the system thinks there's cpu power available. It shouldn't run when the game is running, but who knows... The problem is that even if it doesn't use much CPU, the little IO it does might be enough to cause stutters. It should settle when Windows is done with it.

[kileab]

I think deactivate HT did the thing for me, I must confirm with an actual MP game.

CPU and GPU use are increasing.

 

i7-4770K

GeForce 980Ti

Edited October 4, 2015 by -IRRE-Biluf

[6./ZG26_Gielow]

I tried everything above and I still have the micro stuttering.   Sometimes it is gone and I can play like before but the problem keeping coming back.

 

 

Any new ideas and suggestions ???

[AristocratPanda]

2 things improved the gameplay on my pc :

 

1/ Running dxsetup.exe :

This is a must. Before that the game was simply unplayable.

 

2/ Using Il-2.exe to launch the game (instead of the Steam link) :

I know that sounds weird but I've seen this in steam forums and gave it a try. I felt that it improved slightly the smoothness of the game. It also eliminated some graphic bugs with the clouds.

 

IMHO, the developers have the key to solve all these issues and with all due respect, that would be nice to hear more from them. This sim shouldn't need a godlike machine to run well... And please, I beg you, unlock the custom graphic options. Let us find out ourselves what is bottlenecking the gameplay and allow us to lower just that setting. For example : Shadow resolution and particle details are always performance killers and we can very well do without most of the time. This is the way it works in every other game.

[Urra]

I tried everything above and I still have the micro stuttering. Sometimes it is gone and I can play like before but the problem keeping coming back.

 

 

Any new ideas and suggestions ???

Go into control panel for video card and try running game with all the various AA settings turned off.

[6./ZG26_Gielow]

Old same settings and locked 30 fps target. AA4x HIGH 

 

 

It seems that stutters are gone.

 

I will reset the computer and try once more after dinner just to be sure.

[kileab]

What can you expect from these devs :

 

Biluf : Question (ticket) :

 

I don't understand why the game don't use the full capabilities of my computer setup. I can't hold 60 fps with vsync, I loss half of my fps with enemies around me.

My GPU is not used over 40% of his power, my CPU is not used over 30% of is power. Even if I play in Low Settings, I can't hope to have 60 fps continuously.

I tried all settings.

 

Specs :

i7-4770K CPU @ 3.50GHz

8 Go RAM

GeForce GTX 980 Ti

The game is installed on a SSD

(DXdiag in attachment)

 

 

1CGS : Answer :

 

We doubt that when using permissions 3440 x 1440 you will be guaranteed to receive 60+ fps, in all moments of the games

 

 

Nice customer support...

 

Biluf : Answer :

 

So can you explain why when I deactivate Hyper-threading on the BIOS, I have 60 FPS on continuous ? And it use most of my CPU ang GPU ? You should read your forums more often ad try your game on the most recent hardware.

 

And for your information I run all my games with this resolution without any problem.

 

Can you read again my ticket please because you miss my point.

I'm a premium owner of BoS and BoM, I expected a better answer than this one...

 

 

 

When they will hire a competent dev who is aware of the latest DirectX techniques, perhaps we will have a smooth game guys.

 

 

P.S : Sorry for my english (and there's too), it's not our native language.

[coconut]

With hyperthreading enabled, windows over-estimate how much cpu power you can actually use. Really, you have the hardware for 4 cores in an i7, but Windows sees as 8. They are reasons why hyperthreading is a good thing in certain cases, but the 30% CPU usage you are seeing is really closer to 60% actual. That is, you can really expect better than 50% usage overall on an i7.

 

Now, is 60% CPU usage good utilization? If you have N cores available, and M independent tasks, it is not always possible to allocate these M tasks to the cores in such a way that utilization is maximized. That's especially true of M isn't much larger than N.

 

To clarify, consider you have a UI thread (techno chat, chat, menu system, map, icons), a physics thread, a graphics rendering thread, a sound rendering thread, an input monitoring thread, a network thread, a mission logic thread, an I/O thread (that reads data from the HD) and an AI thread. That's typically more threads than your average game, and it's just 9 threads. Let's just round this down to 8, for simplicity's sake. If each thread neatly takes 50% CPU each frame, you get a neat 100% total utilization. But if those have utilization that don't line up so nicely, overall utilization goes down. For instance, if the hungry threads (typically rendering, AI, physics) each require e.g. 80-100%, and the other require more than 20%, that's already 3 physical cores whose utilization can't be better than 80%. What's worse, individual task/thread can have varying needs across different frames, and there's no good way to know which should run when and where.

 

I wouldn't say 60% overall utilization is good, and I believe it should be possible to do better, but it's well within the somewhat poor utilization that CPU-hungry applications achieve in practice nowadays. They often depend on components that were not build with parallelism in mind, and game developers are reluctant to just throw away that code and redo it.

[kileab]

I also talk about GPU utilization. When I disable the HT, the GPU use is better and my FPS goes up. I don't have any other game who behave like that.

Your explanation of HT use is very nice but we (I'm not alone) have demonstrated that there is a big problem here.

 

And the answer of 1CGS is basically : Yes our game is working like s*** on your computer, it's normal.

 

3440x1440 is not the issue here, I had the same behavior in 1920x1080

[Remontti]

I noticed this on another forum, but it seems to apply to micro stuttering in general. It is about setting HPET (High Precision Event Timer) in BIOS and Platformclock in Windows.

 

See posts #56 and #57

 

http://forums.eagle.ru/showthread.php?t=149504&page=6

[Emil_Junus]

Microstuttering is gone for me since last update.