solved Stutters & jerky movement

[Reflected]

1 minute ago, Glide said:

One other thing you may already know, but just in case, to clear the Nvidia Shader cache, set Shader Cache to disabled in the NCP, reboot and either run the cleanup util or do it by hand.  Shader cache files that are "in use" can't be deleted.

Someone recommended setting it to unlimited. I'll try to disable it.

 

I ran the canned Batumi mission, it was silky smooth, not even the tiniest stutter.

[Glide]

Just now, Reflected said:

Someone recommended setting it to unlimited

I have mine set to unlimited, but just for the clearing operation, setting it to disabled frees the locked files.  Then set it back to unlimited.

[Flappie]

@Reflected OK, it looks correct. I tested the dxdiag log on my end: it reads 64 GB as well. It seems it sums up the RAM and the actual pagefile. I didn't know this.

The problem is elsewhere.

[Loukuins]

I advise you to use 45000 for the preload radius, it seems to be the sweet spot for 32GB of RAM (in my case), hope it can help a bit :c

[Boosterdog]

@Reflected

couple of things with the nvidia settings that may or may not help

triple buffering. That’s an open gl thing not a dx thing. It’ll either have no impact or some say a negative impact if turned on. 
 
Fast sync.  A 3070 is perhaps not quite enough to produce the frames required to use this feature fully especially in heavy load situations. Without the system being able to produce 120fps (assuming a 60hz refresh rate) consistently from the game engine it could cause uneven frame pacing which you’ll see as stutter The lower the output the worse the problem. Head tracking compounds this as the motion refresh is constant but the frame pacing isn’t. I’ve never got on with anything but standard vsync due to this    Your mileage may vary  though as some swear it’s better when logic says it shouldn’t  be  

Frame capping  at 60 or 59. Never done anything but worsen the situation for me

Atl enter into exclusive full screen. This is the main thing that I find helps stutter. Without it DCS is unenjoyable for me. Sadly  and for no apparent reason  ED took it away several patches ago but there are partial workarounds if you are in 2D and don’t need to tab into other windows. Search for the subject in the forums. There’s a thread with the solution but it’s a bit convoluted  and the golden post may be difficult to find. PM me if you are interested and I’ll dig out the steps  

 

 

[Reflected]

On 9/20/2023 at 3:10 PM, Boosterdog said:

@Reflected

couple of things with the nvidia settings that may or may not help

triple buffering. That’s an open gl thing not a dx thing. It’ll either have no impact or some say a negative impact if turned on. 
 
Fast sync.  A 3070 is perhaps not quite enough to produce the frames required to use this feature fully especially in heavy load situations. Without the system being able to produce 120fps (assuming a 60hz refresh rate) consistently from the game engine it could cause uneven frame pacing which you’ll see as stutter The lower the output the worse the problem. Head tracking compounds this as the motion refresh is constant but the frame pacing isn’t. I’ve never got on with anything but standard vsync due to this    Your mileage may vary  though as some swear it’s better when logic says it shouldn’t  be  

Frame capping  at 60 or 59. Never done anything but worsen the situation for me

Atl enter into exclusive full screen. This is the main thing that I find helps stutter. Without it DCS is unenjoyable for me. Sadly  and for no apparent reason  ED took it away several patches ago but there are partial workarounds if you are in 2D and don’t need to tab into other windows. Search for the subject in the forums. There’s a thread with the solution but it’s a bit convoluted  and the golden post may be difficult to find. PM me if you are interested and I’ll dig out the steps  

 

 

Thanks a lot for your input. I applied all the changes, but I still get stutters - but at least I found out that capping my FPS was a placebo. I can;t believe I bought a better machine, only to get higher FPS but worse performance. Not sure what else can I do

[Boosterdog]

6 minutes ago, Reflected said:

Thanks a lot for your input. I applied all the changes, but I still get stutters - but at least I found out that capping my FPS was a placebo. I can;t believe I bought a better machine, only to get higher FPS but worse performance. Not sure what else can I do

Did you try the Alt enter thing?- thats really the only thing that stops stutters for me in DCS. 

[Reflected]

5 minutes ago, Boosterdog said:

Did you try the Alt enter thing?- thats really the only thing that stops stutters for me in DCS. 

It doesn't do anything for me.

[Boosterdog]

4 minutes ago, Reflected said:

It doesn't do anything for me.

Gotcha - I feel your pain.  

[Flappie]

@Reflected It just occured to me that your PC is powered by a i7 12700H. You may not have heard of it, but there's a big issue in MT with recent Intel CPUs.

Try this:

 

[Reflected]

Thanks @Flappie , appreciated. 
 

so I turn the 8th core off in the task manager every time I tun DCS?

and Hyperthreading should be on or off? That wasn’t quite clear. 

[Flappie]

There are three known workarounds:

• Either you disable Hyperthreading in BIOS (at the cost of performance),
• Or you disable the eighth core,
• Or you use DCS ST.

There was a discussion about automatically disabling the eigtht core here. I'm not sure if it works, though.

Edited September 21, 2023 by Flappie

[MAXsenna]

If that 8th core trick works. It's possible to use Prosess Lasso to automated, right?

Sent from my MAR-LX1A using Tapatalk

[YoYo]

2 hours ago, Reflected said:

Thanks @Flappie , appreciated. 
 

so I turn the 8th core off in the task manager every time I tun DCS?

and Hyperthreading should be on or off? That wasn’t quite clear. 

Yes but you can do it only when you notice this issue (30-40% after the last patch, now is better than before) or in BIOS permanently till the next patch.

[speed-of-heat]

You can use the affinity switch from.the command line to force dcs not use core 8 as well

https://superuser.com/questions/1156840/how-do-i-set-the-group-and-affinity-of-a-windows-executable-from-the-command-lin

[speed-of-heat]

you need to check which core is being hogged as well, mine wasn't core 8 but core 0

 

[pastranario3]

I am following closely this post. This is my result without touching the affinity I have a 12900kf. DCS MT

 

DCS ST 

Edited September 21, 2023 by pastranario3

[pastranario3]

Next test DCS MT core 0 disabled

It seems that the load is better distributed on the rest.

 

[Steel Jaw]

Good info, I'm seeing the stutters in VR since the latest OB update. 

Edited September 22, 2023 by Steel Jaw

[Reflected]

I tried disabling core 8 (I have 14 according to the task manager) but it didn't do anything. Then I turned HT off, and it became a slide show. So I turned it back on.

[speed-of-heat]

Is core 8 the one that is always at 100%

[Reflected]

42 minutes ago, speed-of-heat said:

Is core 8 the one that is always at 100%

How do I check that?

[Reflected]

Never mind, found it. It looks like this:

null

[Flappie]

From the looks of it, you don't seem to be affected by the issue. Were you having stuttering when you took this screenshot?

[Reflected]

36 minutes ago, Flappie said:

From the looks of it, you don't seem to be affected by the issue. Were you having stuttering when you took this screenshot?

yes