Eziocin

Guess what ? I am almost 100% sure that my stutters cause was GSX… I tested pushing back with and without it and the difference in terms of smoothness is significant… I know there is an open thread on this issue on the FSDT forum…

OK... I have found my sweet spot... DSR 1.75, DLSS Ultra Quality, Vsync "Force On" in Nvidia Inspector.. some other settings "high Quality" on NI, of course DX12 and FG ON. The result is a stable and very smooth 60 fps, no shimmering at all...some minor stutter every now and then associated with panning or turning n the ground with lot of vatsim traffic at heavy airport, but nothing major...hopefully they might be mitigated by the improved memory management coming with SU15......honestly I have no idea what caused my previous issues and FPS drop....most likely a setting I had overlooked...now overall very enjoyable and immersive experience.. the only caveat is the GPU is always working around 95%-98%.... the workaround for this is to set the monitor refresh rate to 30... Vsync will then cap the frame at 30...same smoothness and no noticeable difference in Sim behaviour, but GPU loads reduce to 65% max (less frame to deliver). One extra info.... I disabled multithreading (or whatever is the AMD equivalent for this), and this seems to have had a slight positive impact. @Cpt_Piett Quite tempted to replace my 8 yrs old LG Ultrawide monitor with some HDR/GSync same size monitor.... 😀

I have tested different Vsync options with a FPS hard cap under all conditions and I didn't like the results...

Following the discussions above, would a Gsync monitor be a good option for MSFS ? I have conflicting reports... is it really a game changer ?

No, this is not what I do...let me clarify: I ALWAYS use Vsync, because it is the only way to avoid screen tearing unless you have a G Sync monitor or similar, which is not my case. To put it simple the Vsync avoids screen tearing by synchronizing the rendered frames with the monitor refresh rate... so in a 60hz monitor the Vsync will ideally sync the frames at 60 fps, provided that the system is capable of delivering 60 fps. If the actual fps are higher than 60 then the Vsync will cap fps at 60 (there is no need to use a hard cap at 60 fps in this case), but if they are lower, there is no way they can be syncd at 60, and in that case the Vsync will anyway continue to avoid tearing but stutters may occur depending on how large the gap between the Sim fps and the monitor refresh rate is. Here is the benefit of the "1/2 Refresh rate Vsync": it syncs the frame with half of the monitor refresh rate, so in a 60 hz monitor, if the system is able to deliver at least 30 fps, then the result will be a perfectly smooth, stutter free 30 fps rendering. What happens in my case is that even if I select "1/2 refresh rate Vsync" in NVCP, whenever I increase the monitor native resolution using DSR either 2.25 or 1.75, the "1/2 refresh rate" feature doesn't work, and Vsync continues to work as a standard Vsync, that is trying to sync at 60 fps, and in heavy scenarios, my system is not always able to provide stable 60 fps, and here is where the stutters come from, at least this is my conclusion.... for the time being... however, it is good to know that with my same hardware and my same MSFS settings you don't have this issue...in the end, I have built my rig just very recently, so maybe I still need to fine tune some settings...

Thanks for the advice… will try it as soon as I will be back in front if my Sim PC, that is after Easter…☹️ I am not on Beta either..

Actually this is strange and I am struggling to understand the rationale of what happens: at upscaled resolutions the 1/2 refresh rate Vsync doesn’ t work, that is even if I select it in Nvidia Insoector I only have the full vsync active which caps the FPS to the 60 native monitor resolution… but if I lower the monitor refresh rate to 30 then the 1/2 refresh rate kicks in and caps the frame at 30…have no idea why this happens.. and the other interesting thing (maybe that’ s obvious) I have found is that once the frames are capped the consequence is that the GPU load drops significantly (most likely because less frames needs to be rendered)… from 95% to 60% roughly.. in both cases I have Frame Generation ON, and it works, not doubling the frames of course, but giving that extra boost which allows me to keep 30 Frames… with FG OFF the performance decay is noticeable.. one curious thing happened today: at Inibuilds EGLL, departing from Terminal 5 with all the T5 stands busy with Vatsim traffic (FSTL aircraft), with DLDSR @1.75 and DLSS quality, normal Vsync (not 1/2 rr), I had stable 55-57 fps at all time from flight preparation, to push back, taxi and take off, with almost no stutter whatsover.. the only difference vs previous flights was that I didn’ t use GSX…. Didn’ t have the time for another test, but that’s an interesting clue… more to come with further tests.. cheers ezio

No...no G Sync monitor...in the plans for the future, but not at the moment...

Great discussion here and a great contribution to a better and better sim experience.... I just want to share my recent experience. I have a Ryzen 7800X3D paired with an Asus RTX4090 and a 21:9 Ultrawide 3440x1440 60hz monitor.. I have tested the DLDSR 2.25x option + DLSS Quality.... vs just DLSS Ultra Quality.... Frame generation enabled in both cases... nvngx_dlssg and nvngx_dlss updated to 3.6 version.. all MSFS settings to Ultra and TLOD/OLOD 150.....no question about the performance in terms of FPS...in both cases the FPS and Image quality are great, but.... I need to enable Vsync (through Nvidia Inspector) to avoid screen tearing (and doing so I have my FPS capped to 60), and every time the FPS drop below 60, even just around 56 or so, I have got heavy stuttering... this is particularly occurring in cases such as Inibuilds EGLL, with Vatsim traffic, using Fenix, where I have fps ranging from 45 to 57.. the only way to have a perfectly smooth sim also in those conditions is to set my monitor refresh rate to 30hz and use Adaptive Vsync 1/2 refresh rate...this caps the FPS to 30 and everything is perfectly smooth even in the heaviest conditions, and visually stunning. I know that most people will scream that it is meaningless to have such hardware to run at 30 fps, but whoever has experienced this has realized that 30 FPS smooth, and I repeat again "smooth", is the sweet spot for heavy addon scenarios and aircraft in MSFS. Having said that, I have made three flights in the last few days, one with just DLSS Ultra Quality, and two with DLDSR 2.25 + DLSS Quality, and while the first one was successful, both the ones with DLDSR, although giving a slightly better visual quality, ended up with a screen freeze and a video driver error message. So to summarise my experience so far: DLSS Ultra Quality great performance and visuals..... DLDSR+DLSS Quality similar performance, with slightly better visuals but still some fine tuning to be done to avoid issues... I will need to build up a more significant number of test flights. Ezio

Hi, glad to read this as I am just about to move from my I9-9900k to a system very similar to your one with a 7800x3d. Just a couple of questions: 1) are you using the stock frequency and default bios settings for the CPU or are you using any kind of overclocking ? 2) I have always used Intel CPUs, where I had a “turbo boost” option in the bios to increase the CPU clock (not the manual overclocking, but just the turbo frequency boost which needed to be enabled in the bios to have the CPU max clock increase), but with the 7800 my understanding is that the increase from the base 4.4 Ghz clock to the boost 5.0 Ghz is enabled by default… is my understanding correct ? thanks and enjoy your new rig..😊..! ezio

Does it work also on RTX 2080 series ?

Great video and thanks for sharing. As everyone else here I am looking forward the release of GSX. just one question, either for you or for Umberto: on the Fenix you start the progressive refuelling via the Fenix EFB load page clicking the Load Aircraft button. However in the Fenix this button triggers also the passengers boarding and cargo load.. how do you handle this ? Board passengers and load cargo via GSX first and then refuel using GSX triggered by aircraft EFB button ? If so, does GSX knows the right payload for the flight ? thanks ezio

I have a networked configuration with FSX/P3D working on the server and ASN, EFB and vPilot running on the client. Everything works quite fine. On the server I have two parallel OS installation on two separate SSDs, one for FSX and another one for P3D...actually it is as if I had two different computer, as I have two different "computer names". On the client I have the simconnect.cfg file that I have to modify every time I swich from FSX to P3D to take into account the fact that the server name (or IP) has changed. Not a big issue, but I would like to know if it is possible to list in the simconnect.cfg on the client multiple servers names, as indicated here below, in order to avoid editing the file every time: [simConnect] Protocol=IPv4 Address=xxxxx Port=500 MaxReceiveSize=4096 DisableNagle=0 [simConnect.1] Protocol=IPv4 Address=yyyyy Port=500 MaxReceiveSize=4096 DisableNagle=0 ........ I have seen somewhere in the forums this format is possible, but the point is if I modify my simconnect.cfg accordingly on the Client, it doesn 't work, i.e. ASN is no longer able to connect to FSX (or P3D). What am I missing ? Should I also modify something on the simconnect.xml file on the server in order to make it work ? Thanks for your suggestions Regards Ezio

Great job PMDG !!! Very well done..!! As well as many other users I can happily confirm a significant VAS footprint reduction and a subtle yet tangible overall handling improvement on both FSX-SE and P3D verions. Just one observation: in the last few days I have completed a LHR-IAD-LHR rotation, flying LHR-IAD on FSX-SE and IAD-LHR on P3D V3.1. I noticed that on FSX-SE the VAS remained perfectly constant throughout the flight and slightly increased during approach (as it would be normally expected), while in P3D it increased slowly but constantly during the flight, even though I landed in LHR with 900 Mb VAS remaining. Installed addons were mostly the same on both Sims (Aerosoft EGLL, Flightbeam KIAD, ASN SP4, UTX Europe/USA V2.1, REX4 Soft Clouds, AivlaSoft EFB, FSGlobal 2010 mesh, etc....). The only difference is all addon airports except departure and destination deactivated in FSX via Scenery Config Editor, while all addons left activated in P3D. Again, really not an issue at all (900+ Mb remaining after an 8 hours flight with all addons in and textures @2048 would have been impossibile, but it is just a curiosity to understand if this is normal and caused by the different architecture of the two sims or if it is something related to my settings. Regards Ezio Cingolani

Greg, this is weird....the disk(s) are OK...I ran sfc/scannow and they passed OK. The point is not the hardware...it must be a compatibility issue of some sort or something I am doing wrong during install. It cannot be a hardware issue as the disk runs ok with Win 7 and becomes corrupted after a few hours on Win 10.....and this happened on three different SSD....! I noticed that during all the Win 10 installations I have done in the last few weeks I have never installed the Intel Chipset drivers. I realized it tonight looking at the device manager. I don't know if this may be a cause for my problems....another think I am looking at is CCleaner : I have used also the registry cleaner feature and my problems have started shortly after it....quite frankly I don't know where to look at....I am not a PC novice but this is driving me crazy.... Regards