Stuttering with different airplanes in different modes

[tovivan]

Tested this both in MP as well as editor on clean and empty map.

It continuous, FPS gets halved and then back again, halved, back again and so on, from 80 to 40 FPS in space of a second.

 

Su-25T: stutters as soon I turn on electricity. if i turn it off, everything is smooth

 

Su-25A: no stutters

 

Su-27 and Su-33: stutters in IRST and Radar BVR modes

 

MiG-29: stutters only in Radar BVR mode, while IRST is okay

 

Will do some more testing of other modules.

[The_Nephilim]

I will test this too to see if maybe its you..

[tovivan]

Hopefully it's not me because 33gb download at 200kbs dl speed is not a pleasant prospect. :(

[OldE24]

F-15 in multiplayer TWS stutter/lag i have heard other people complain of this and have seen it also i have not figured out what causes but can be cleared by game restart.

 

basicly everytime you LOCK someone in TWS stutter/lag insues if you unlock it goes away and stt is ok..but TWS is just a stutter lag fest.

[tovivan]

i have not figured out what causes but can be cleared by game restart.

 

I don't use F-15 so can't confirm that, but can confirm that restarting doesn't help with Soviet planes.

 

Wanted to do some CAS with the 25T on an MP server, but stuttering was so bad as long as I had electrics turned on that any CAS work was impossible.

 

I actually had to taxi and take off with electrics turned off, it was that bad and hampering!

 

Also noticed some serious FPS drop in Shkval of the Ka-50, especially because of the Vikhr's smoke trail.

 

At this point the Su-25A is the only plane I've tried that works without problems (haven't tested the MiG-21 yet). It might be my imagination, since it's been a long time since I've flown it, but it seems to have a seriously sweet new cockpit with excellent visibility, much better than the 25T.

 

The game was silk-smooth a few updates ago, what happened to it?

 

PS: I wonder if mods/testers are even reading this or if they are even aware of the problem.

Edited January 5, 2016 by tovivan

[The_Nephilim]

Well I tried the Su-25T, I was on the ground cold start and when I switched the electronics off and on it only varied by a few FPS not real noticeable..

 

In the air FPS where high and FPS actually went up when switching the Electronics off..

 

What are your sys specs??

[BIGNEWY]

 

PS: I wonder if mods/testers are even reading this or if they are even aware of the problem.

 

yes we do, we also try to replicate problems, and I am not seeing what you are.

 

could you add your system spec to your post please.

 

A guide to bug reporting can be found in my signature

[tovivan]

Okay, did some more testing, A-10a and F-15 come out clean (tested the TWS issue reported by others, but didn't have it). These are the only two Western planes I have (due to FC3), so can't say about others.

 

The Soviet planes still have the problem even with completely empty mission and fresh start of both computer and game.

 

Reshade slightly exacerbates the problem, but doesn't produce it (tested with it turned off). That is also the only mod I run.

 

Specs:

i5 4670k, turbo at 4ghz

asrock z97 fatal1ty killer

16gb of brand ram (forgot which brand xD)

ati hd 6770 1gb

750W psu

 

The only thing now I guess is to delete the saved games folder and see if it's still there. This install is the one I have since 1.2.8 Open Beta, so there may be some crap from before that's producing it, but I have also read others have performance issues since last updates. Not really looking forward to redownloading the entire game and all the modules on the off chance itll help.

 

Bignewy, thanks for letting me know you're there! :)

[BIGNEWY]

We are always here, even if we dont talk :)

 

you understand the ati hd 6770 1gb is below minimum spec for dcs 1.5 / 2.0

 

Minimum system requirements: OS 64-bit Windows 7/8/10; DirectX11; CPU: Core i3; RAM: 8 GB; Free hard disk space: 30 GB; Video: 2 GB RAM card, DirectX11 - compatible; requires internet activation.

 

Recommended system requirements: OS 64-bit Windows 7/8/10; DirectX11; CPU: Core i5+; RAM: 16GB; Hard disk space: 30 GB; Video: NVIDIA GeForce GTX780 / ATI R9 290 DirectX11 or better; Joystick; requires internet activation.

 

[tovivan]

We are always here, even if we dont talk :)

 

you understand the ati hd 6770 1gb is below minimum spec for dcs 1.5 / 2.0

 

Yet with medium settings on 1080p I get 100+ fps.

 

I also understand that most times minimum specs (30 years of gaming). ;-) :)

 

The ONLY game that puts my computer to it's knees is Kingdom Come Deliverance, have no problems with any other game, modern or old. Especially not with stuttering (except for Il-2 Cliffs of Dover, but there the people who DON'T have stuttering without tweaking are the strange ones :D ). Stutters are from my experience not caused by gfx card, but by the game's problems.

 

And to make clear, never before in all the years of playing DCS did I have this problem, not even in the last months of 1.5.

So it's not my gfx card that's the problem. It's either something wrong with my files in dcs install or a recent update messed something up. After all, I'm not the only one having this problem...

 

Noticed something interesting as I was trying to record the problem with Fraps.

 

I deleted the Saved Games folder, so did this with new settings.

 

Spawned in an Su-27 over water, pressed "rctrl+pause" and turned on IRST to check. Yes, stuttering was back. Turned off and went back into nav mode.

 

Then started fraps and started recording, fps got locked down from STABLE 107 fps to 60 as set by fraps.

 

Started recording, turned on bvr and irst. Suddenly no stuttering.

 

Since as soon I start recording the stuttering is magically healed due to the fps-lock I can't give any proof. :(

 

But it does makes me wonder what exactly that means and where can I find an app that would only lock my fps and not do other things (like Fraps records).

 

Will also try to re-dl base game and FC3 overnight, if a new install will help.

Edited January 6, 2016 by BIGNEWY
1.1 profanity

[aap_flanker]

Use vsync in game, and also in catalyst.... Set it to 60 and give a try....

[tovivan]

Use vsync in game, and also in catalyst.... Set it to 60 and give a try....

 

Re-downloaded the entire game, deleted the Saved Games folder and started from scratch. Still the same.

 

Turned on vsync, helped slightly, but it's not a solution, it's a patch, the problem is still within the game.

 

There are plenty of threads about stuttering issues and many people complain, so it's not my gfx card's fault.

Edited January 10, 2016 by tovivan

[Kuky]

I have managed to get most fluent DCS by:

 

- see attached image for nVidia driver settings

- V-sync in DCS is turned on

- limiting FPS in DCS to 38 in SavedGames/DCS/Config/Autoexec.cfg

 

This gets me very smooth gameplay when FPS is higher than 38 (in DCS it actually shows as 39) and only gets bit stutter when flying low over Las Vegas where my FPS drops into 20's

Edited January 10, 2016 by Kuky

[Wolf Rider]

These settings, for me, give the best result...

 

i7-5930K @ 3.50GHz, 6 Core (HT enabled)

EVGA x99 FTW mobo

EVGA GTX980Ti 6GB vga

Corsair Vengeance ram 16GB, 2666Hz

Creative Recon 3D sound card

Samsung Syncmaster PX2370 monitor

Windows 7 Ultimate 64bit

and no modified ingame files - all as original/ except for Controls (A10-C), a virgin install

 

 

Edited January 10, 2016 by Wolf Rider

[msalama]

But triple buffering only affects OpenGL-based programs, does it not? Are you using D3DOverrider or some such as well?

[Wolf Rider]

@ msalama...

 

that's why turn it to OFF for DX, so nothing is trying to be "forced" by the VGA...

me personally, I don't use any 3rd party "tool" - I've found them to cause grief in one way or another in the past

 

 

@ Kuky...

 

Gamma Correction is a huge frame rate killer, moreso than setting a High Quality Level...

 

v

v

Edited January 10, 2016 by Wolf Rider

[msalama]

Ah! Sorry. Mis-eyeballed it. Thought it was on.

[Kuky]

@ Kuky...

 

Gamma Correction is a huge frame rate killer, moreso than setting a High Quality Level...

 

I've just tried it to off and it made no difference. FPS were pretty much the same.

[Wolf Rider]

did you try the other settings as well? ... it does make a difference; considering the condition presented

Autothreading Optimisation should not be set to ON... the sim is not multicore aware in the sense the setting requires

 

I'm not playin' ya for a mug, mate

Edited January 11, 2016 by Wolf Rider

[Kuky]

did you try the other settings as well? ... it does make a difference; considering the condition presented

 

no I haven't, I'll give them a crack tomorrow

[Wolf Rider]

Cheers!

[Kuky]

^^^

Well, I just tried your settings and I actually got bit worse FPS as well as some stuttering. For my PC my settings definitely give me smoothest performance.

[Wolf Rider]

oh well, thanks for the feedback - yet others say marked improvement... enjoy your PC

[msalama]

Some may well say there's a marked improvement, but there's no one true answer to this still. In v1.2.16 with a GTX580, I needed to have threaded optimization on or endure increased stuttering, whereas in v1.5.2 with a GTX980 it seems to play the smoothest with it off. So it depends...

[Wolf Rider]

http://www.tweakguides.com/NVFORCE_8.html a brief explainer (and yet more inconclusiveness :) )

 

and considering every machine is somewhat unique... what is running in the background may be bad boy on some machines https://support.microsoft.com/en-us/kb/331796