19 minutes ago, Mets737 said:

What exactly is the ultra low latency for? I have basically your settings except that, I forget where I've seen it but a lot of different sources say to keep it off. Not sure what to do lol

From what I’ve read, it’s mostly useful for fast-paced games with very high fps. Although it’s been recommended in combination with G-Sync in MSFS. Sorry, don’t have a reference at the moment, think it might have been Digital Foundry. 

But yeah, there’s absolute no consensus in regards to MSFS.

Edited March 7, 20242 yr by Cpt_Piett

Ok, thanks! 

52 minutes ago, Cpt_Piett said:

I’ve experienced the opposite. 4KTAA RS 160 at 60 fps vs DLDSR 5120 x 2880 at 80+ fps. Are you running “legacy” DSR or DLDSR?

Legacy.

5 minutes ago, verbal said:

Legacy.

That’ll explain the performance hit. NVidia claims 50% performance improvement w/ DLDSR vs legacy. For even better performance it can be combined with DLSS.

The funny thing about these AI techs that uses Tensor cores, is the upscaling/supersampling vs downsampling thing. It’s making my head spin a little.

E..g. native 3840x2440 upscaled to 5144x2880 is downsampled to fit the screen. Then DLSS does it’s thing to downsample to x80 native resolution whilst retaining roughly the same image quality…

Edited March 7, 20242 yr by Cpt_Piett

1 hour ago, Mets737 said:

What exactly is the ultra low latency for? I have basically your settings except that, I forget where I've seen it but a lot of different sources say to keep it off. Not sure what to do lol

I don't know either, but it is recommended by Nvidia when using G-Sync and V-Sync in combination.

Edited March 7, 20242 yr by Ixoye

Dubble post

Edited March 7, 20242 yr by Ixoye

I recommend not using the low latency settings in NVCP together with RTSS Edge Sync, that was the one that caused the micro stutter when panning and flickering panels when changing camera views for me.

I got some more headroom on my GPU by locking to 80 with edge sync which is always nice, I don't think the Sim can run any better than it does for me now, there is no need for more tweaking, everything seems perfect so far 👍

2 hours ago, Ixoye said:

I recommend not using the low latency settings in NVCP together with RTSS Edge Sync, that was the one that caused the micro stutter when panning and flickering panels when changing camera views for me.

Maybe this is system related, for me the combination of Ultra low latency, GSYNC & VSYNC On along with fps locked to 80 with RTSS is pure bliss. Make sure you have Triple Buffering Off in NVCP as I tried that recently and it introduced micro stutters. The beauty of testing with this methodology is that you can easily find the sweet spot for your own hardware where your PC won't sound like Maverick leaving the carrier 🙂 I can barely hear my PC running and temps are cool as a cucumber even with an air cooler strapped to my 12700K

To be honest I haven't tried much without ultra low latency. Then again, I don't experience much stutters as long as I use sensible settings. But every system is different though.

A big exception though is heavy-hitting airports. Then I'll get stutters. Just experienced this departing from Asobo's KSFO in the A300. Up at FL320 en route to PHNL everything is pure bliss, even at TLOD 600 and maxed out settings: 

(was running the latest test build of AutoFPS at the time)

I find that more than 95% of the time I'm main thread limited. Even at FL320 I'm still MT limited (MT 23ms GPU 14ms). This is interesting considering how much work the GPU is doing: supersampling image, advanced antialiasing, downsampling, shadows 6K, ultra clouds. It's easy to get fooled by external monitoring apps like RTSS though, as in the same situation (FL320), avg CPU load is 18% whilst avg GPU load is 89%...

Also, there's talk about AI aircraft having a much bigger impact on performance in SU15 beta. I do get an fps increase without FSLTL, but it's not huge. Perhaps they're talking about Asobo live traffic. 

Btw this is turning into another performance & visual quality mega-thread! We're just jumping from thread to thread discussing these topics, lol 🙂

Edited March 7, 20242 yr by Cpt_Piett

This topic is great, ALOT of great information, thanks as always @Cpt_Piett

21 minutes ago, Cpt_Piett said:

To be honest I haven't tried much without ultra low latency.

Try without it once, but be sure to turn it off before you start the sim, the difference was very clear to me while panning.

13 minutes ago, Ixoye said:

Try without it once, but be sure to turn it off before you start the sim, the difference was very clear to me while panning.

Thanks, I'll do that! Once I arrive in Honolulu - some hours to go yet 😄 

Been experimenting some more with Process Lasso. It's a very useful tool for monitoring how various programs use system resources. For those with Intel CPUs with both P-cores and E-cores, it might be worthwhile to make Lasso assign various apps to the E-cores. So that P-cores will be freed up for the heavy-lifting. 

So far I've put the following on E-cores:

For those who want to experiment with this, I'd recommend not assigning MSFS to any cores. I've found that by doing so I get CTDs and freezes. 

I'm still not sure what to do with the Fenix apps. So far I've left them unassigned. 

Edited March 7, 20242 yr by Cpt_Piett

I've noticed that using RTSS front edge sync doesn't work on all flights, it's just not predictable, on some flights I get microstutters when panning, witch goes away if I turn RTSS edgesync off, so I will go for uncapped 100hz for now.

Just had a brief discussion with IslandSimPilot who should get credit for most of my ideas re: DLDSR and DLSS ultra quality. 

Quote

IslandSimPilot: I've been watching your discussion on the forum, when you do the DLDSR upscale and then DLSS Quality in the sim, leave your desktop resolution at native. You want the compressing effect of the DLDSR getting squeezed down onto your monitor, and if you set your monitor resolution to the same resolution you use in the sim (the 1.78 or 2.25), you lose it. Give it a try and you'll see a huge difference! Hope you're doing well.

My response:

Quote

I did that initially, but realized G—Sync stopped working as it needs MSFS and desktop resolution to be the same. Thanks for the advice though, I’ll look into it further!

---

2 hours ago, Ixoye said:

I've noticed that using RTSS front edge sync doesn't work on all flights, it's just not predictable, on some flights I get microstutters when panning, witch goes away if I turn RTSS edgesync off, so I will go for uncapped 100hz for now.

That's interesting. I might do some more testing between the two. It's easy to change while simming though, no need for MSFS restart. I've made a hotkey so I can turn fps lock on/off on the fly. 

EDIT: Just tested, can't say that I can tell a difference. Panning seems just as smooth w/ 80 fps locked vs unlocked (getting around 94 fps in current situation). Perhaps it's situation-dependent? Perhaps something else is causing the micro-stutters?

EDIT2: More testing: I can pan around like a mad-man with fps locked with hardly any FTV. Same with fps unlocked, no change. Granted, I'm at FL340. I expect this would chance once I get closer to Honolulu. 

Edited March 7, 20242 yr by Cpt_Piett