On 2/8/2024 at 9:28 AM, Christopher Low said:

I installed MSFS for the first time in November last year, and installed all of the world updates (including the recently released WU15). I was very impressed with the performance, even in dense scenery areas. However, after a while I noticed that I was getting micro stutters quite frequently. These were most noticeable on final approach, but they were also evident through turns. I had no idea why this started happening, but I solved it by following the instructions in the video below. This was several weeks ago now, and performance has been solid as a rock since then (including plenty of short flights in Norway, Sweden and Denmark).

In short, I now have really impressive performance across the board......and this has remained the case since I installed WU16. I do not use AI planes at the moment (and I do not see me activating them any time soon, as I am enjoying the combination of smooth framerates, minimal stutters, and incredible graphics far too much to risk spoiling the experience), but if my PC from yesteryear can handle it (i5 7600k @ 4.5Ghz/32GB DDR4-3600 RAM/6GB Nvidia GTX 980Ti), then the vast majority of flight simmers should have no issues whatsoever.

I tried the recommendations in this video, and I must say it has had a really noticeable effect. When he started talking about clearing DX and GL caches, I thought, well, that's what I routinely do anyway. But, there are other steps included that I'd never done, and the result is much smoother performance. Definitely not placebo, but a genuine improvement. Everyone should at least try it out. Thanks to @Christopher Low for posting it.

8 hours ago, Cpt_Piett said:

I haven’t experienced many stutters post SU14, flying around SoCal in the analog King Air. Perhaps the issue will be mitigated somewhat in SU15 with improved memory management. 

He lives!  Hi Cpt!

2 hours ago, Paul K said:

I tried the recommendations in this video, and I must say it has had a really noticeable effect. When he started talking about clearing DX and GL caches, I thought, well, that's what I routinely do anyway. But, there are other steps included that I'd never done, and the result is much smoother performance. Definitely not placebo, but a genuine improvement. Everyone should at least try it out. Thanks to @Christopher Low for posting it.

I never knew there were these other cache folders, and in my case there is no DXShader cache in AppData>Local>NVIDIA, just GLCache and NvBackend live there for folders.  I routinely use the Windows DiskClean for this.

11 minutes ago, Noel said:

He lives!  Hi Cpt!

good to have him back !

Once again, a lot of this makes no sense.  Clean out the GL cache?  This is for applications using OpenGL for graphics.  MSFS uses DirectX exclusively, so why?

 

 

we don't know just clean them out Bobcat ! lol

6 minutes ago, bobcat999 said:

Once again, a lot of this makes no sense.  Clean out the GL cache?  This is for applications using OpenGL for graphics.  MSFS uses DirectX exclusively, so why?

 

 

We just do as the man says. We must obey. We are assimilated.

🤭

18 minutes ago, Noel said:

I never knew there were these other cache folders, and in my case there is no DXShader cache in AppData>Local>NVIDIA, just GLCache and NvBackend live there for folders.  I routinely use the Windows DiskClean for this.

Have you looked here - C:\Users\( your name) \AppData\LocalLow\NVIDIA\PerDriverVersion\DXCache ? I delete everything in there, except the ones that are in use, and therefore can not be deleted.

10 minutes ago, Paul K said:

Have you looked here - C:\Users\( your name) \AppData\LocalLow\NVIDIA\PerDriverVersion\DXCache ? I delete everything in there, except the ones that are in use, and therefore can not be deleted.

Thanks I only looked in the folder referenced in the video, but yes I see it there now in the PerDriver folder.

I envy you all, as there is nothing to delete in my NVidia folder that might increase performance. perhaps I should go and delete something else then instead? otherwise it feels like mission not accomplished:

 

all I can offer for deletion is this logfile in GfnRuntimeSdk, if that might increase 1-2 fps, is that where the micro stutters are hiding?

2024-02-09T18:06:14.250   GfnSdk  APP GfnRuntimeBootstrap.c:174  Create Bootstrap
2024-02-09T18:06:14.251               GfnRuntimeBootstrap.c:718  Joining MessageBus as GfnSdk:GfnSdkClientPeer_11584
2024-02-09T18:06:14.251[E]               GfnRuntimeBootstrap.c:736  Could not get MessageBus interface

 

 

1 hour ago, Paul K said:

I delete everything in there, except the ones that are in use, and therefore can not be deleted.

Well, if you start by Disabling the Shader Cache Size, then reboot, you will be able to delete everything in the ../../DxCache folder and the other folders.

Put Shader Cache Size back to Driver Default and reboot again.

I've done it like this for as long as I can remember.

1 hour ago, SierraDelta said:

Well, if you start by Disabling the Shader Cache Size, then reboot, you will be able to delete everything in the ../../DxCache folder and the other folders.

Put Shader Cache Size back to Driver Default and reboot again.

I've done it like this for as long as I can remember.

I figured this was the routine so did it a moment ago on the off chance it will, somehow address this recent onset of bigtime stuttering in the context of ample GPU/CPU/VRAM headroom.  Just these past few days of this and nothing like it for the past year or well more.  Kind of unpredicted that cache-clearing procedural will impact this recent problem as I've had stutter-free as the norm now for ages but we shall see in a few seconds, just finishing loading and close to taxi

Update:  no joy, as predicted.

Edited February 10, 20242 yr by Noel

2 hours ago, SierraDelta said:

Put Shader Cache Size back to Driver Default and reboot again.

I thought the consesus was to set this to something large, like unlimited ?

1 hour ago, mobeans10 said:

I thought the consesus was to set this to something large, like unlimited ?

It appears this folder store driver-specific shader files.  If you set to unlimited it's conceivable it will store all driver shader files ever installed per driver, even if they aren't used.  I seriously doubt this is of any consequence save the unnecessary use of storage, but it isn't much anyway.