[REPORTED]2.5.6 Performance

Because you arent as sensitive to performance loss, frame drops and stutters?

I have come across many who say their performance is fine, and fine is rather relative, yet some only run 20 fps (even in VR) and are perfectly happy with it and dont really know what they ran before, or even before you asked. My threshold is 60 fps on monitor and 45 fps in VR, and I notice it immediately when Im below that.

I’ll second this. A friend of mine runs his like a slideshow but he thinks it’s fine whereas I pick up on the slightest of stutters. 60fps monitor and 45fps VR...standard.

i think the problem is in the last 2.5.6 gpu usage (and clocks) is very low for no reason, even when the fps is dropping from 60 fps...checked with msi ab.

Frame rate drop 2.5.6

Okay all,

Since the update to 2.5.6:

Issue - F-16 in PG map frame rates drop to under 30 making it choppy as hell. Worse when lower to the ground. Usually get 60fps in all areas, heights, lightning conditions and weather etc.

Happens in SP missions, ME missions with NO assists other than me. Happens less in MP.

My hardware has not changed.

My hardware drivers have not changed.

Have deleted DXO and shaders.

Have checked windows background processes.

Have tried turning all settings to low then medium then high then all the MSAA, ANISO, SSA, SSLR, draw distances etc.

Same issue occurs.

Have repaired and reinstalled (epic time) DCS.

Worst frame-rate issue is in F-16 on PG.

Also happens but slightly less on Caucasus.

Also happens but slightly less in MiG-15/AV8B/SU33/ on both maps.

Setup - i58600k OC. RTX2070S. 32Gb. SSDs DCS has its own drive.

Happened immediately after going to 2.5.6.

Sent from my iPhone using Tapatalk

I fly on the f18 instant action free flight in the cauc map,I roll 270degrees left pull through along the river in to the hills at tree top level following the pylon lines, and then pullback over the top of the second hill on your left inverted, rolling wings level after the crest and the back out towards the runway

Well I just did this training mission and tried to recreate what you did and I landed. here are the fpsVR Results after 7 minute flight:

fpsVR Report:

App: DCS HMD: Samsung Windows Mixed Reality 800ZBA0 (90.002 Hz, IPD 66.0)

GPU: NVIDIA GeForce GTX 1080 (26.21.14.3648) CPU: Intel® Core i5-7600K CPU @ 3.80GHz

Delivered fps: 45.57 Duration: 7min.

GPU Frametimes:

Median: 16 ms

99th percentile: 20.6 ms

99.9th percentile: >30 ms

frametime <11.1ms(vsync): 7.2%

CPU frametime:

Median: 13.3 ms

99th percentile: 17.3 ms

99.9th percentile: 23.4 ms

frametime <11.1ms(vsync): 9.1%

Max. SteamVR SS: 150%

Render resolution per eye: 1772x2212(by SteamVR settings, Max.) (HMD driver recommended: 1447x1806)

here are my settings:

I am having the same problems in VR. 7700k @5.0, 1080ti oc, 32g ddr4 3600, nvme ssd. In the free flight mission all is well, GPU performance is up about 80%. On the Stennis or in Arab Spring campaign mission 2 or 3 its almost unplayable at 16-22 fps. This is Hornet. In Rio seat of 14 same thing. I played the campaign once already on 2.5.5 and it ran fine at 45 fps. Not bitching, just wanted to throw in that I too am noticing issues.

I managed to return to 2.5.5 performance by doing this:

- deleted metashaders2 and fxo folders

- executed DCS repair (delete all files and mods, I'll reinstall A-4E-C latter ;) )

- on my nvidia control panel, restored defaults and set "let the 3D application decide

- opened the game and set the graphics to high

- set MSAA to off, SSAA to 1.5, shadows to flat

that all... I'm happy again (for now).

I am having the same problems in VR. 7700k @5.0, 1080ti oc, 32g ddr4 3600, nvme ssd. In the free flight mission all is well, GPU performance is up about 80%. On the Stennis or in Arab Spring campaign mission 2 or 3 its almost unplayable at 16-22 fps. This is Hornet. In Rio seat of 14 same thing. I played the campaign once already on 2.5.5 and it ran fine at 45 fps. Not bitching, just wanted to throw in that I too am noticing issues.

I tried this campaign and the few missions I tried specifically 1,2,& 3 on the deck it was real bad.. I thought once I took off it would help but it did not.. maybe something going on with this campaign..

I did get a bit higher on the FPS about 20-35 but very jumpy..

Well I just did this training mission and tried to recreate what you did and I landed. here are the fpsVR Results after 7 minute flight

 

 

here are my settings:

So I think I understand some of the differences, you are driving less pixels than me (can't do proper math right now), and your visibility range is set to medium, which is crucial.

I will try on your settings are as close to as I can, reverb vs oddy but I suspect I can get your perf by dropping to medium view. The problem is I am at high in 256, so it is still a settings drop.to achieve a similar outcome 256 vs 255.

Thanks for trying though!

so in free flight i get a generic a minimum 10-20% performance decrease ... more (way more) when the stennis is involved on the same settings in 2.5.6 when compared to the same experience in 2.5.5 if I reduce my pixel count (my default is 2316 x 2264) to be similar to yours and visibility range to be the same, i get that performance back, except where the stennis is involved...

but my point is not that i can achieve your performance experience, but, that my performance has decreased, between 2.5.5 and 2.5.6 on the same settings

correction the stennis impact, is not due to the stennis, but other aircraft models being visible on the stennis, if you clear the other aircraft the frame rates drop to what is "normal for 2.5.6" a 10-20% increase

I have a theory.

Considering the large numbers of suddenly vanishing objects, implying an issue with LoDs or rendering, could it be that the OPPOSITE extreme is also taking place? That some objects are rendering with ONLY their high level LoDs, drastically increasing overhead? You might try zooming out in external, and see if the objects ''downgrade'' as you zoom away, or appear to stay at high detail levels.

This would explain why some people have it and others don't, based on mission content, and also why some aircraft have it and others don't. If for example F-16s have a problem, and you're flying presumably with several wingmen, performance is crippled, however another guy flying with unaffected aircraft might have no issue.

It is quite possibly the theory of the problem.

I do get a perf impact even when im the only plane in the sky..

From running my benchmark missions, I notice a definite (and substantial) performance loss when SSLR is enabled. Apart from that, something is definitely off. I just ran a somewhat complicated mission, nothing too extreme. I had zero issues before. Now, I'm going down to the low 40s (I had smooth 60 for the most part before) on occasion, because of high CPU or GPU usage that makes so sense. My GPU would previously stay at ~70% in that scene and now it often gets to 99%.

I must be lucky because I don't see any FPS drop. More or less the same as before probably even little bit better with new lighting :D (free flight both Caucasus and PG instant mission). No mods whatsoever, clean install.

Hey, Oceander.

What is your water setting at (Low, med, or hi) in 2.5.6?

I lower my fps every time I press the brakes while on the ground.

It seems 2.5.6 update does not do very well with certain missions

The FA-18C Aggressor Campaign is a slomo play. Cannot get fps above 10 in both monitor and vr. Bad sluttering on both display irrespective of lowering the graphic settings.

Also in AAR refueling missions downloaded, the tanker is invisible, can only see the marker dot. However in dcs made aar missions, the tanker is physically visible and I can do aar refuel.

It appears some missiins needs to be updated to 2.5.6

It seems 2.5.6 update does not do very well with certain missions

 

The FA-18C Aggressor Campaign is a slomo play. Cannot get fps above 10 in both monitor and vr. Bad sluttering on both display irrespective of lowering the graphic settings.

 

Also in AAR refueling missions downloaded, the tanker is invisible, can only see the marker dot. However in dcs made aar missions, the tanker is physically visible and I can do aar refuel.

 

It appears some missiins needs to be updated to 2.5.6

I may have found something.

The game starts in borderless window every time despite having fullscreen enabled in the settings.

Pressing LAlt+Enter while running the game results in a crash so I can't fully test it but that has more to do with my weak hardware than with the game itself.

I may have found something.

 

The game starts in borderless window every time despite having fullscreen enabled in the settings.

Pressing LAlt+Enter while running the game results in a crash so I can't fully test it but that has more to do with my weak hardware than with the game itself.

Well known issue which exists as long as DCS itself. It does cost some fps but it isn't the cause for the recent performance loss under 2.5.6

I'm getting an immense FPS loss since 2.5.6, when lots of units are present. My laptop could handle 100+ aircraft in the air with around 25 FPS, but now I'm down to 1-2 FPS. I hope the team can find a quick fix for this.

The KC-130 tanker model is currently invisible. I'm guessing the missions that work use the KC-135MPRS or S-3B. At least I refueled from an S-3B without issues.

With the S-3B, I refueled successfully.

Just had the first training of my squadron in 2.5.6.

Using 2.5.5 I had around 90-120FPS, limited to 60.

Now I'm down to 30 :(

CPU is 2770K, One core is about 80%, the others below 10%.

Graphics card is a 2070, usage is limited to 70%.

32 GB Ram.

I lost performance with 2.5.6 too. In single player, a mission I have been building for some days now (rather ground unit intensive) just went unplayable. Lost at least half my frames, just sitting there on the ramp (units not visible from there).

Online I have lost performance too, joined on a dedicated server. Not as much as the above, but enough to see and measure it. Id say a good 25% in MP, and as much as 50% in unit intensive missions.

 

This is in 1080p monitor and SSLR is off.

Unchanged for me with todays build.