FPS impact of 4.35
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One thing is sure : it has nothing to do with the flight model
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Running a i7 4790k and a GeForce 1070 I had pretty bad FPS at the FLOT (Rolling Fire, Day 1, 0200z). I had something like 20 FPS, SIM: 30 and REN: 100. Looks like the CPU is the bottleneck here right? Iām wondering why itās more noticeable than in 4.34 though. Iām just a little bummed since most of the guys are reporting better FPS than 4.34. Iām wondering if itās time to upgrade to Ryzen then.
Just checked the FPS counter again. FPS: 20-30, SIM: 40-60, REN: 150-180
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Have you tried windowed mode?
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No measurable difference for me, fullscreen vs borderless.
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i have an older system than you but more powerfull GPU and 3x monitorsā¦ slick like butter.
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I actually had an improvement in performanceā¦ Better than before!!
FX8350
gtx10603gb
16ram ddr3 -
I actually had an improvement in performanceā¦ Better than before!!
yea we understood that from your avatarā¦ :lol:
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[older Core i7-3770 system, newer NVidia GTX 1660 Ti]
Iām getting a pretty serious FPS reduction, in 4.35 ā¦ seeing mostly 50-70 fps, down from 80-100 fps in 4.34.4.
Anyone else? Or is it just my ~8-year old CPUā¦
And yet ā¦ even at the lower frame rate, somehow 4.35 āfeelsā better to me than previous version. Improvements to the flight model? Or did the move to DX11 reduce end-to-end latency in the rendering pipeline?
Hoping santa brings me a Ryzen 5000 cpu. Until then, Iāll get by with 50fps.
Have you gone through each and every config option to be sure you are comparing fairly ?
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I just tried setting everything to the least demanding settings and had about 80-100 FPS in the TR_BMS_21_Osan_Taegu training mission. Enabling Shadow Mapping brings it down to around 20-30 FPS. There has always been an performance impact by shadows but it was not that extreme for me in 4.34.
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Settings and pc specs and fps chase is kinda a never ending storyā¦
The BMS manual has very nicely documented the settings.
So control gfx from Falcon and leave it on gfx driver to application controlled.The other way around is playing and finding your unique setup sweet spot. This can take zillion of tries and checks and logging and whatever.
And the results almost all the times will be different if you try different aspects or missions or time.So do the basic setup, see if your system is ok, generally from 4.34 should have same or better performance, with better the most common case.
Then once you have verified you are on the safe side play as much as you like to find the sweet spot.The general rule is donāt look the fps, disable them, if itās fluid to your experience then you are ok, go enjoy it. The number is just a number.
Fine example in flight simulationā¦ all chasing the highest fps, like I have 144Hz monitor and I only have 60 or 90 fps and suddenly MSFS 202 comes and everyone is super happy with 20-30FPS and going WOW, same for RTX, chasing fps and enabling raytracing goes to 30-40 but itās WOW and suddenly everyone is silent on the oh my eyes hurt with such low fpsā¦ For me itās the experience and not the number.
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Thanks for your reply Arty!
Settings and pc specs and fps chase is kinda a never ending storyā¦
The BMS manual has very nicely documented the settings.Iām aware of the documentation.
So do the basic setup, see if your system is ok, generally from 4.34 should have same or better performance, with better the most common case.
Then once you have verified you are on the safe side play as much as you like to find the sweet spot.Thatās why Iām replying to this thread. I have a fluid experience in 4.34 and since most of the people are reporting even an increase in performance Iām wondering whatās happening on my system.
The general rule is donāt look the fps, disable them, if itās fluid to your experience then you are ok, go enjoy it. The number is just a number.
Exactly, I wouldnāt be bothering with it, if the experience wasnāt unpleasant.
Looking at your specs, guessing you are having no issues, Iām wondering what the issue with my setup could be. But since 4.34 (on the same system) is not showing such low performance with the same config settings Iām trying to figure out what the issue could be.
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Logs m8, logs.
Run app that logs cpu and gpu performance, run falcon, then observe the logs and what can bottleneck.Ī£ĻĪ¬Ī»ĪøĪ·ĪŗĪµ Ī±ĻĻ ĻĪæ MI 5 Ī¼ĪæĻ ĻĻĪ·ĻĪ¹Ī¼ĪæĻĪæĪ¹ĻĪ½ĻĪ±Ļ Tapatalk
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Have you gone through each and every config option to be sure you are comparing fairly ?
I used a diff tool to compare the cfg files ā¦ I know not every option is a cfg line entry (eg. cloud resolution). And it appears some options have been added/removed or consolidated. Eg. no more per-pixel/vertex lightingā¦ and no more option for cockpit/focus shadow. But apart from that Iām 99% sure Iām comparing fairly.
Iāve gone back to square zero ā¦ trying hyperthreading on/off ā¦ fullscreen vs borderless window ā¦ etc.
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I just tried setting everything to the least demanding settings and had about 80-100 FPS in the TR_BMS_21_Osan_Taegu training mission. Enabling Shadow Mapping brings it down to around 20-30 FPS. There has always been an performance impact by shadows but it was not that extreme for me in 4.34.
YES this seems to be it! Turning off shadows made a huge impact. The āsimā frame timer dropped from around 15-20ms to around 7ms. Enough for me to max out my 100hz monitor.
In 4.34 we had more fine-grain options for shadow controlā¦ here are the settings I had before (which saw about 90-95 fps, just daytime landing in Kunsan, TR #3)
set g_bShadowMapping 1
set g_bCockpitShadows 1
set g_bFocusShadows 0
set g_bShadowOnSmoke 0
set g_bWaterNormalMapping 1
set g_bWaterEnvironmentMapping 0
set g_bEnvMapRenderClouds 0
set g_bEnvMapRenderFocusObject 0And here is what I have now in 4.35ā¦ now getting up to 100fps. (Turning off g_bShadowMapping was the huge framerate win, on my system.)
set g_bShadowMapping 0
set g_bShadowOnSmoke 0
set g_bWaterEnvironmentMapping 1
set g_bEnvMapRenderClouds 0
set g_bEnvMapRenderFocusObject 0It seems focus-shadows and cockpit-shadows have been consolidated under a single option for shadows? Itās a shame to lose cockpit shadows (99% of the only shadows Iāll ever see). Unless they are somehow responsible for the perf hit on DX11, in which case Iāll gladly take the higher frame rate / lower input lag.
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Iāve got a pretty significant performance decrease from 4.34 as well, 25% almost. While arty is right, frame rate isnāt everything, I do chase at least 60 fps in every combat sim I play as a minimum. I find 60fps allows the smoothest trackir experience. 30 fps in FS2020 is fine because youāre just watching the world go by. Looks like I need a new ryzen cpu myself.
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Ghastly, what cpu do you currently have? If I recall correctly, donāt you have a 2080 super gpu? I thought that you would be fine.
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Agree, below 60 is where the choppiness of panning the view breaks the sense of immersion. Maybe 50fps would be ok if it were really solid and consistentā¦ and with a VRR monitorā¦ one could get used to it.
In my case, the fps was varying significantly from 40 to 70ā¦ based on what, I couldnāt figure it out?
I had a good clue ā¦ hitting [Shift+2] to toggle the cockpit rendering made a huge boost. Now I guess I know, my fps was probably dependent on the angle of the sun/moon and time of day. (cockpit shadows)
Ghastly ā have you tried turning off shadow mapping?
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Iām glad to be born in the late 70ās and to have known the CPC6128, AMIGA500, PC486DX33 ā¦ so I can be extremely happy and satisfied now with what I have, even with 30-40FPS.
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That makes two of us on this one!!!