I just built a new pc (specs below), after installing and optimizing Windows 11 I imaged the drive then gathered the main tweaks out there and applied them one by one testing them each time in the PMDG 737 at the same airport with clear skies and no traffic.. I did them in the following order and I’m finding the sim is performing the best I’ve seen in quite a while. Before applying the tweaks below the sim was definitely not as smooth.

NDU Registry Tweak

https://forums.flightsimulator.com/t/ndu-registry-change-increase-performance-immediately-amazing-tested-and-approved/504551/9

Message signal interrupt tweak

https://forums.flightsimulator.com/t/message-signal-interrupts-rtx-30xx-performance-boost/532185

Enable Resizable Bar (I believe this allows full access to GPU memory)

I’m curious if anyone else has tried enabling the resizable bar and if so what’s your experience. This only seems to have surfaced recently from what I can tell.

I documented everything I have done from the Windows installation onwards so I can use a checklist if I need to do a fresh windows installation and made regular images with Macrium Reflect so I can revert to a given point if need be (I prefer Macrium over windows restore points) 

Just thought I’d share my experience 

(6) Msfs2020*Reduce lag & Stutters*Increase fps/W these 3 easy steps! For PC & VR Full tutorial! - YouTube

I've seen that here and tried it - Not sure if I can see anything noticeable but seems proper to use it.

 

2 minutes ago, Tony P said:

(6) Msfs2020*Reduce lag & Stutters*Increase fps/W these 3 easy steps! For PC & VR Full tutorial! - YouTube

I've seen that here and tried it - Not sure if I can see anything noticeable but seems proper to use it.

 

I also watched that video,

the only thing I’ve yet to try is the ISLC Timer Resolution but honestly I haven’t had performance degradation over long flights. I’ve done a few 10 hour legs in the HD 787 without issues 

I have resize bar enabled but does MSFS take advantage of it? Would it make a difference if they did given their main thread limitations?

Edited August 17, 20223 yr by Virtual-Chris

Resizable BAR support for MSFS can be enable with Nvidia Profile Inspector.

3 minutes ago, Waldo Pepper said:

Resizable BAR support for MSFS can be enable with Nvidia Profile Inspector.

Yes I followed the tutorial and used Nvidia Profile Inspector 

As soon as I saw in the video's title... "That Nvidia does not want to give you" my click bait alarm went off.

Youtubers are not doing themselves any favors but engaging in this deceptive behavior. It just belittles themselves in the long run.

Mark

 

 

2 hours ago, RJC68 said:

Yes I followed the tutorial and used Nvidia Profile Inspector 

 

2 hours ago, Waldo Pepper said:

Resizable BAR support for MSFS can be enable with Nvidia Profile Inspector.

Does it make any difference?

1 hour ago, Virtual-Chris said:

 

Does it make any difference?

Only way to tell is to do back to back benchmarks yourself with it turned On and Off, that's what I'd do 🙂

i noticed no difference

Benchmarking of this sim is frankly impossible.
From one day to the next, without changing anything in the settings and with strictly the same flight conditions, you can obtain a smooth 40 fps or a jerky 20 fps.
I'm done looking for the Holly Grail or the Magic Tweak, there aren't any.
🍻

11 minutes ago, David Roch said:

Benchmarking of this sim is frankly impossible.
From one day to the next, without changing anything in the settings and with strictly the same flight conditions, you can obtain a smooth 40 fps or a jerky 20 fps.
I'm done looking for the Holly Grail or the Magic Tweak, there aren't any.
🍻

It's not impossible, I've done plenty of it over the past two years. There is a margin for error in the way I perform them but it's a very small percentage (I've been benchmarking games for decades so I know what I'm doing).

Agree for the most part in your final comment, no one outside setting is going to drastically affect the Sim, it'll be a mix of various settings that you could be chasing every single time there's a GPU/Windows driver update and in the end it becomes a chore not a hobby.

Just find settings that work and go with them, although having said that each Sim Update can mess that around!

My advice; if it's smooth enough and you don't notice sudden performance issues, then leave well alone.

Someone benchmarked this on quite a few games / titles a few months back on YouTube. 

While most showed gains of nothing to a few percent, MSFS was the only one where performance was slightly worse!

That didn't surprise me for some reason.  My view is that it won't make any noticeable difference, especially due to the day-to-day variance of MSFS, as David Roch has stated.

The best performance gain I have seen running at 4k ultra settings is DLSS - quite a boost, in exchange for just a little bit of fuzzyness on the flat screens - but easier to cope with at 4k.

6 hours ago, RJC68 said:

I’m curious if anyone else has tried enabling the resizable bar and if so what’s your experience

Yes, enabled since it was available on my card. No difference in performance.

Regarding the MSI, you can just check this tab and if the video card IRQ has a negative number, it is already in MSI mode.

8 hours ago, RJC68 said:

I just built a new pc (specs below), after installing and optimizing Windows 11 I imaged the drive then gathered the main tweaks out there and applied them one by one testing them each time in the PMDG 737 at the same airport with clear skies and no traffic.. I did them in the following order and I’m finding the sim is performing the best I’ve seen in quite a while. Before applying the tweaks below the sim was definitely not as smooth.

NDU Registry Tweak

https://forums.flightsimulator.com/t/ndu-registry-change-increase-performance-immediately-amazing-tested-and-approved/504551/9

Message signal interrupt tweak

https://forums.flightsimulator.com/t/message-signal-interrupts-rtx-30xx-performance-boost/532185

Enable Resizable Bar (I believe this allows full access to GPU memory)

I’m curious if anyone else has tried enabling the resizable bar and if so what’s your experience. This only seems to have surfaced recently from what I can tell.

I documented everything I have done from the Windows installation onwards so I can use a checklist if I need to do a fresh windows installation and made regular images with Macrium Reflect so I can revert to a given point if need be (I prefer Macrium over windows restore points) 

Just thought I’d share my experience 

It's not that Nvidia don't want to give you this info, it's because for a lot of people they will need to update the bios and Nvidia do not want the idiots out there blaming them for bricking their motherboards.