13 hours ago, Tork_Curve said:

I've seen a couple of things also cause this. A USB Peripheral and the cache folder/drive for flight sim. If you have a decent Internet connection and name drives I'd disable any of the disk cache stuff in flight sim. You may not need it.

Good morning Tork, I just unplugged all USB devices on the PC and flew using the Xbox controller.  Same exact thing.  1/3 second pause at precise 60 second intervals.  Cache disabled too.  I'm now at a loss.  Thanks for your input, I appreciate it.

17 hours ago, Noel said:

Rich, next time up if if works out for you, in something demanding like PMDG/Fenix, can you run DevMode and observe over at least 20 minutes if you ever see these sudden drops below 30FPS as shown in my images?  You would need to lock frame by Vsync to 30 to try to duplicate my system.  Your CPU is more potent but what's happening here happens when there is ample CPU and GPU headroom, so appears to be about a larger disk read in flightsimulator.exe.  Certainly the DiskBench I did suggests the NVMe is not hard on the CPU at all.  Since I've lost the previously pause-free simulator I'm tempted to go ahead and install Win 11 on top of this fresh Win 10.  I have a hard time believing this will help, but I don't know where else to go now.  We really don't know if separating OS and MSFS is required and perhaps this experiment might show something.   If you can run at 40FPS locked that might be closer since your CPU is a good 25% faster for main thread processing over mine.

Hey Noel,

I will give this a go later today. I’ve been running Win 11 Pro since I built my PC about 2 months ago. I would always recommend a fresh install as opposed to upgrading over an existing version, especially in your case as your having issues. It’s actually really easy to reinstall MSFS. I followed this procedure:

1) Move the community and official folders to another folder (preferable on the same SSD, that'll be quicker). 

2) Delete MSFS from either Steam menu or Microsoft store. 

3) Move the community and official folders back to where you want the sim installed (I've got it set for D:\MSFS).

4) Reinstall MSFS. Important: Choose the folder where you've got the community and official folders. Installing the sim from should only be ~1Gb.

5) When starting the sim for the first time, it might ask for a folder to install some updates. Choose the folder that you installed the sim to. It will do some syncing during first load, but once you reach the main menu, everything should be there. 

Graphics settings might have to be adjusted, like choosing full screen etc, but all the controller settings is linked to your Xbox account. 

If you're using Addons linker keep in mind that the settings (presets etc) are stored here: C:\ProgramData\MSFS Addons Linker

I forgot that when doing a recent reinstall and had to set everything up from scratch. 

Edited October 15, 20223 yr by RJC68

20 minutes ago, RJC68 said:

Hey Noel,

I will give this a go later today. I’ve been running Win 11 Pro since I built my PC about 2 months ago. I would always recommend a fresh install as opposed to upgrading over an existing version, especially in your case as your having issues. It’s actually really easy to reinstall MSFS. I followed this procedure:

1) Move the community and official folders to another folder (preferable on the same SSD, that'll be quicker). 

2) Delete MSFS from either Steam menu or Microsoft store. 

3) Move the community and official folders back to where you want the sim installed (I've got it set for D:\MSFS).

4) Reinstall MSFS. Important: Choose the folder where you've got the community and official folders. Installing the sim from should only be ~1Gb.

5) When starting the sim for the first time, it might ask for a folder to install some updates. Choose the folder that you installed the sim to. It will do some syncing during first load, but once you reach the main menu, everything should be there. 

Graphics settings might have to be adjusted, like choosing full screen etc, but all the controller settings is linked to your Xbox account. 

 

If you're using Addons linker keep in mind that the settings (presets etc) are stored here: C:\ProgramData\MSFS Addons Linker

I forgot that when doing a recent reinstall and had to set everything up from scratch. 

Thanks Rich I actually know all of that and have reinstalled MSFS a couple of times now and have no problems with it--it's a far cry better than P3D!!!!!!  

Right now I've installed the latest NV driver and am trialing DX12 as Lagaffe mentioned his pauses went away with DX12, so that's a little hopeful.  If this doesn't do it I would consider the over-the-top Win 11 install only because I just recently reinstall OS and MSFS and its addons and since I don't know if Win 11 will solve this it's pretty straightforward to try.  I have wonderfully good performance except for these recurrent hard pauses.  Thanks again for the details and as I say, I'm already good with all of those things.  I'll report back on DX12 and pauses shortly!!  To add to your guide I would also recommend deleting the Shader Cache which I just did post install the latest NV driver.

After installing SU11b I started getting crazy stutters in some areas, especially photogrammetry cities, and after troubleshooting so many variables (hags, hyperthreading, threaded-optimization etc.) I still couldn’t find the problem.

Then I checked some performance posts on the official forums and found some users were seeing the same thing because their rolling cache had been enabled. And that turned out to be the issue for me. Several changes were made to the settings for this beta for some of us, so have a quick look there, too.

1 hour ago, scotchegg said:

After installing SU11b I started getting crazy stutters in some areas, especially photogrammetry cities, and after troubleshooting so many variables (hags, hyperthreading, threaded-optimization etc.) I still couldn’t find the problem.

Then I checked some performance posts on the official forums and found some users were seeing the same thing because their rolling cache had been enabled. And that turned out to be the issue for me. Several changes were made to the settings for this beta for some of us, so have a quick look there, too.

Thanks Scotch I am on SU10 only and no diff between rolling cache off/on/deleted/etc.

DX12 continues to have this issue but it's less visible (the pauses that is, but they're still there).  This is DX12 w/ the latest NV driver and cleared out shader cache, capturing a pause w/ dropped frame rate and brief pause:

 

3 hours ago, Noel said:

Thanks Rich I actually know all of that and have reinstalled MSFS a couple of times now and have no problems with it--it's a far cry better than P3D!!!!!!  

Right now I've installed the latest NV driver and am trialing DX12 as Lagaffe mentioned his pauses went away with DX12, so that's a little hopeful.  If this doesn't do it I would consider the over-the-top Win 11 install only because I just recently reinstall OS and MSFS and its addons and since I don't know if Win 11 will solve this it's pretty straightforward to try.  I have wonderfully good performance except for these recurrent hard pauses.  Thanks again for the details and as I say, I'm already good with all of those things.  I'll report back on DX12 and pauses shortly!!  To add to your guide I would also recommend deleting the Shader Cache which I just did post install the latest NV driver.

I’m racking my brains here for you Noel lol

Have you tried backing up your Bios settings then resetting them. Maybe start with a completely stock Bios with not even XMP enabled. I also found when I built my PC that I was getting micro stutters with virtualization turned on so I disabled anything to do with it. 

Do you have any USB or human interface devices listed in the control panel that have sleep mode enabled? Or any game controllers that run wirelessly ? 

1 hour ago, Ianrivaldosmith said:

Do you have any USB or human interface devices listed in the control panel that have sleep mode enabled? Or any game controllers that run wirelessly ? 

Thanks Ian, no wireless controllers.  Wasn't aware there is a sleep mode for USB/HID but can look thanks.  

1 hour ago, RJC68 said:

I’m racking my brains here for you Noel lol

Have you tried backing up your Bios settings then resetting them. Maybe start with a completely stock Bios with not even XMP enabled. I also found when I built my PC that I was getting micro stutters with virtualization turned on so I disabled anything to do with it. 

That's a stretch but yes we're in stretched mode now!   I've run the same BIOS for 2.5y now and all has been well.  This being said I found one potential issues in the BIOS which I've played with mainly to see what if any affect and am about to got test it.  Virtualization is off by default and I've read it's not a good thing so never had it on.  Thanks!

4 minutes ago, Noel said:

Thanks Ian, no wireless controllers.  Wasn't aware there is a sleep mode for USB/HID but can look thanks.  

Yes, in device manager right click them all and disable sleep mode. Some have it and some don’t. If I left sleep Mode enabled, it was causing what you describe in the sim for me. 

1 hour ago, Ianrivaldosmith said:

Yes, in device manager right click them all and disable sleep mode. Some have it and some don’t. If I left sleep Mode enabled, it was causing what you describe in the sim for me. 

Did it, unfortunately to no avail, unless it needs rebooted to manifest.  In the middle of a flight at the moment.  

Here's what I'm referring to the harder 1/2 second pauses happen seemingly randomly.  The video is terrible short my bad but look at the DevMode FPS OSD:

 

Strange, anti virus or something? System resources? Does disk usage go to 100% by any chance as it happens? 

Sorry, you haven't got an AMD card have you? I need to check, got a mate you also had this and it may have been the amd equivalent of Geforce.

If you guys were in the SU 11 beta, I would suggest leaving DX 11 and going to DX12.

In SU 10 I find DX 11 far better than DX 12 for a few reasons.

But in SU 11 (beta), DX 11 stutters from time to time especially at dense airports, and often badly. But I get 0 stutters in DX12 (with SU 11 beta installed). Therefore I can turn the graphics settings higher and fly at for instance V2 of Orbx Burbank KBUR, because it just isn't going to stutter ever no matter what scenery I throw at the sim.

4 hours ago, Noel said:

Thanks Ian, no wireless controllers.  Wasn't aware there is a sleep mode for USB/HID but can look thanks.  

How can sleep mode be disabled on these?  I looked at mine and there isn’t an option.  Win 10, thanks.