Flying near trees causes great fps loss.

[amazingme]

Thanks guys.

 

Tried this trick after reading a bit about it.

 

Running windows 7 64-bit, so only used the first option, "bcdedit /set useplatformclock true" that forces HPET timer only in Windows.

Running a i7 2600K OC to 4.4 GHz max, and a GTX 670 GPU.

 

I am, like cro_mig_21 blown away..

 

Never have I seen DCS, or any simulator for that matter, run so smoothly..

Everything feels like a live movie now, and I can follow even the tiniest adjustments in my flight controls.

 

Zoom in and out and smoke from ground attacks, that both used to stutter terribly, are now almost completely smooth, with only a slight hiccup from time to time.

 

Though your results may vary, I highly recommend people to at least test this tweak, and see if you gain something by it.

I certainly did.

 

Now I just hope that it does not have too big adverse effects on my PC, but future will tell.

 

PS: Even if it does not solve the low FPS issue near trees, I can at least fly smoothly even with only ~30 FPS.

 

Did the same thing and after rebooting and jumping into the game, I started a multiplayer public server with a mission I've created (8:30 in the morning with the sun rising over the mountains near Kutaisi...), and I instantly noticed, after putting my nose down and flying over a large forest, that even though the fps dropped from 60 to a minimum of +44, the feeling was... smoothness! No micro stuttering of any sort..

I have an Asus P7P55D-PRO MB with 16 GB DDR3 (2x8 Kingston @2000MHz 9-11-11-28) powered by 1xIntel i7 875K@4GHz(OC'ed) 2.9 GHz stock, 1xSapphire AMD R9 290X Vapor TriX 512bit, with 4GB RAM and 1xCreative X-Fi Extreme Gamer Fatality Audio board, X-55 Rhino HOTAS + MFG Crosswinds rudder pedals.

 

I also recommend to turn off ACPI 2.0 support in BIOS on ASUS MBs.

Edited October 20, 2015 by amazingme

[archer86]

at mission start, left alt enter solved main stutter problem but while flying over forests there is still fps lost and stutters.

 

hope for update 3 will fix that issue

[domini99]

Does cro_mig_21's fix also work for Windows 10 x64?

 

 

 

Verstuurd vanaf mijn XT1068 met Tapatalk

[cro_mig_21]

Does cro_mig_21's fix also work for Windows 10 x64?

 

 

 

Verstuurd vanaf mijn XT1068 met Tapatalk

I run on win10 pro x64 so it is working..just discovered though that if I tipe the second comand only (bcdedit /set useplatformclock true) it runs even better for me.

No input lag present...at least none that I could see/feel with trackIR or Hotas

Edited October 20, 2015 by cro_mig_21

[Nedum]

Guys!

It's enough!

Please don't highjack this thread anymore!

Your "problem" has nothing to do with this discussion!

 

We are talking about a massive lost of FPS around trees and you about stuttering at even high FPS without any tree.

Even my blind old grandpa had seen that this are total different problems and as I can see is this a nV problem/fix.

So please don't violate this thread and the forum rules anymore and make your own thread for your special problem and the fix!

Thanks! :thumbup:

Edited October 20, 2015 by Nedum

[Sporg]

I am sorry, and understand the issue.

 

Maybe a moderator could move the offending posts to the thread about micro stutters (http://forums.eagle.ru/showthread.php?t=149092), or create a new one?

[amazingme]

Guys!

It's enough!

Please don't highjack this thread anymore!

Your "problem" has nothing to do with this discussion!

 

We are talking about a massive lost of FPS around trees and you about stuttering at even high FPS without any tree.

Even my blind old grandpa had seen that this are total different problems and as I can see is this a nV problem/fix.

So please don't violate this thread and the forum rules anymore and make your own thread for your special problem and the fix!

Thanks! :thumbup:

Sorry for trying to help, but your problem seems like a FSB issue. Try to overclock your memory and/or CPU to see whether you gain some fps. From my experience I can tell that the higher the bandwidth between the CPU and RAM the better for DCS engine. And judging over your specs, the i7 2600K has a ~100Hz bus speed which kind of sucks..no offence intended. I have a i7 875K with 133 Hz bus speed which I overclocked to 200Mhz. My RAM is 2x8GB Kinsgton Hyper-X @2400MHz stock which now are clocked @ 2000MHz(9-11-11-28). I can tell, after extensive testing, after buying the new RAM (previously I had 4x2GB Kingston Hyper-X @ 1600Mhz) the gain in fps is enormous.

In conclusion, it's about your rig, not the game.

[amazingme]

I attached two benchmarks made with MaxxMem2.. my old RAM vs my new RAM. You can do the same, just for the sake of comparison. :)

 

 

 

 

You can also try RadeonPro's Dynamic V-sync feature, which I've tried and it really helps the game run smoother @ low fps. Plus, a lot of other tweaks and feature you'll enjoy.

Edited October 21, 2015 by amazingme

[Rocky49]

Tried flying near trees with huey, p51, dora, f86, mi-8. Happens every time and in every mission. As you can see by my specs I have lots of memory so that should not be an issue. My usual frame rate is 124. It drops to 70s and climbs back up when you climb away from tree

Edited October 21, 2015 by Rocky49

[Sporg]

I have the same problem with trees as well, both in 1.5 and in 1.2.16.

 

Only difference is, in 1.5 the FPS drop is from 90-100 FPS high up, around 50-60 lower down and 30 FPS just above the trees.

 

In 1.2.16 it is from ~60 FPS high up, ~40-45 FPS lower and around 30 FPS just above the trees.

 

i7 2600K @ 4,4 GHz, 8 GB RAM, GTX 670 with 2 GB VRAM.

[AMVI_Rider]

I don't think the memory access/rate is causing this issue.

 

[amazingme]

You should try/buy newer RAM. 1600 MHz (9-9-9-24) seems a bit slow though.

[Sporg]

Sorry for trying to help, but your problem seems like a FSB issue. Try to overclock your memory and/or CPU to see whether you gain some fps. From my experience I can tell that the higher the bandwidth between the CPU and RAM the better for DCS engine. And judging over your specs, the i7 2600K has a ~100Hz bus speed which kind of sucks..no offence intended. I have a i7 875K with 133 Hz bus speed which I overclocked to 200Mhz. My RAM is 2x8GB Kinsgton Hyper-X @2400MHz stock which now are clocked @ 2000MHz(9-11-11-28). I can tell, after extensive testing, after buying the new RAM (previously I had 4x2GB Kingston Hyper-X @ 1600Mhz) the gain in fps is enormous.

In conclusion, it's about your rig, not the game.

 

Let's see, you double your amount of RAM from 8 GB to 16 GB?

And you change configuration from four sticks of RAM to two, which in itself is known to help performance?

 

Did it ever occur to you, there might be other factors at stake than your FSB? ;)

 

PS Subject going off topic again. We should stick to the trees issue.

[amazingme]

Let's see, you double your amount of RAM from 8 GB to 16 GB?

And you change configuration from four sticks of RAM to two, which in itself is known to help performance?

 

Did it ever occur to you, there might be other factors at stake than your FSB? ;)

It's all about speed..

[amazingme]

One more thing and I'll close the subject.. If your FSB doesn't keep up with the CPU frequency (speed) then you will have dead cycle times as in stuttering and so on. FSB is a real bottleneck for DCS engine.. trust me I'm an engineer :) And of course the engine should be better optimized but in the end, it's not going to satisfy every gamer on the planet...

[OttoPus]

Report: in the lastest hotfix the issue is still here

[Theskyline35]

I up this, still having this real problem, on W10 it's terrible, 75fps over aera without trees, 30 and many lags over cities !

[Rocky49]

yes it is still there but not as crippling as earlier updates

[YoYo]

One more thing and I'll close the subject.. If your FSB doesn't keep up with the CPU frequency (speed) then you will have dead cycle times as in stuttering and so on. FSB is a real bottleneck for DCS engine.. trust me I'm an engineer :) And of course the engine should be better optimized but in the end, it's not going to satisfy every gamer on the planet...

 

Check Mustang mod. No FPS impact after this:http://forums.eagle.ru/showpost.php?p=2495081&postcount=7

btw. after the 1.5.3 install it here S:\DCS World\Mods\terrains\CaucasusBase\Structures\High\E DM .

 

Its a problem of shadows on trees. It will be nice if ED will add option on/off for shadows on the tree. Its a problem in 1.5.3 and 2.0.1.

I hope Mustang will do the same mod for DCS 2.

 

[Theskyline35]

Check Mustang mod. No FPS impact after this:http://forums.eagle.ru/showpost.php?p=2495081&postcount=7

btw. after the 1.5.3 install it here S:\DCS World\Mods\terrains\CaucasusBase\Structures\High\E DM .

 

Its a problem of shadows on trees. It will be nice if ED will add option on/off for shadows on the tree. Its a problem in 1.5.3 and 2.0.1.

I hope Mustang will do the same mod for DCS 2.

 

 

Thanks but I already tried and it still terrible

 

Since 2 updates my framerate dropped to a "unplayable condition" whereas it was perfect some months ago at the release of the 1.5.

 

Here is a video showing you the problem (in fact the video reduced the real framerate, it seems there is 5fps, it was more 15-20fps)

 

[ame]

[/ame]

 

I recently upgraded to W10, it is possible to have a impact on DCS ? all my other sim/games work VERY fine !

 

Edit : Adding details

 

The strange fact about that is that my FPS counter is way over 15fps, It said around 40-50fps on the video, HOWEVER I feel like I was running at 15fps, and the video capture is even worst...

 

And I'm not alone with that as I saw here :

http://forums.eagle.ru/showthread.php?t=155458&page=5

 

watermanpc said :

".its me or this game runs horrible as soon as its below 60fps?¿?¿I mean everytime it goes below 60, even if its 50fps it feels like 10fps...do you feel the same?"

Edited February 19, 2016 by Theskyline35

[Mustang]

^^^ I was getting a similar type of stuttering with framerates with my R9 380 before i used this program

 

http://forums.guru3d.com/showthread.php?t=404465

 

give it a try and report back if it helps.

[Kuky]

Guys.... few notes from me:

 

DCS 1.5.3 is being slowly changed to work with 2.0.0

 

Some short while ago the terrain config settings were adjusted for better visibility across all settings. So you need to understand 1 thing. Do not use high, and especially not ultra and extreme settings for visibility distances, or forests distance, if you do not have a top of the line PC (which includes very fast, later gen 4 core (or more) o/c CPU, and top of the line video card. The high setting is still very pleasant and has very decent visibility distance, you can't expect ultra and extreme (just think about what this work means!) setting... and expect good FPS when flying over cities and very dense forests, with high MSAA and what not else.

 

It just won't be playable with everything high.

 

Anything more than 4x MSAA over forests is a killer... just think about it... hundreds if not thousands of tree textures, all needed to have MSAA applied... it will simply kill your FPS. The more MSAA, the more vRAM you need to have. Than add to that dynamic shadow (non flat shadows) and you are asking for trouble.

 

MSAA also uses lot more vRAM.. keep that in mind. 2GB of vRAM, flying low over forests... with MSAA and high visibility settings, it will just not run smoothly.

 

I think people's expectations need to be re-adjusted after this terrain visibility settings adjustments. High would be plenty for most users, if on lower and medium end PC's... you should use low and medium settings, not high, and most definitely not ultra or extreme.

 

Now, I'll add more as to why you sometimes see forest trees shadows when trees are not rendered... it is because of change in FoV as you enter cockpit. By default, I think a 60° FoV and the distance at which objects are rendered as well as shadows, match. As soon as you start to increase your FoV (which happens at every mission start) the distance of rendered objects decreases, while shadows do not. This is why there is a discrepancy (and I hope this will be addressed by ED sometimes in the future).

 

Keep in mind the sim graphics engine is still being worked on and improvements come slowly, I wish it would be quicker, but it is what it is.

Edited February 20, 2016 by Kuky

[Esac_mirmidon]

Mustang´s no tree shadows mod is a good tip to enjoy High visibility and saving resources at the same time. Anyway i don´t like forest shadows the way they are right now.

[Theskyline35]

OK thanks guys for details and advices, Mustang I will try your tweak, if it worked for your r9 380 is will work for my r9 280, but I'm out of my home for a week so I will report everything later. I will at the same time reduce a lot my graphic options to see if a graphic option is killing the framerate.

[Ragnarok]

try my file

 

extract and paste in "...\Config\Effects"

shadows.rar