Oculus stuck at 45FPS?

[[FF]frostysauce]

Hey guys, just set up my rift and it is blowing me away. I fired up IL2 after getting some of the setup done and wow wow wow. It is an experience that cannot be put into words.

 

However, I notice I am stuck at 45 FPS now matter how low in settings I go, I set it to 0.5 DSR, and it was still at 45FPS. I have a 1080Ti and an i5-4690, the 1080Ti is overclocked. 16GB of RAM. I feel like I must be missing something? I get pretty motion sick at 45FPS

[dburne]

What do you mean by DSR, how are you setting that?

 

There are a couple of ways to set up SS for the Rift and BoS.

Either through Steam VR settings, or through the Oculus SDK. I personally use the Oculus Tray Tool to set my SS ( Pixel Density).

 

What speed is your i-5 processor running? That might be a limiting factor in achieving 90 fps. Also what graphics settings are you using?

 

You can disable ASW and see if that helps, either through the Oculus Tray Tool or with ctrl+numpad 1.

 

As far as motion sickness, if you just got the Rift for some it takes some time to get our " VR Legs" . Take it is short spells, when start to feel nauseous take a long break. Took me a couple of weeks to get to where it really did not bother me.

[TG-55Panthercules]

Sounds like ASW is on - I ran a test last night (with my maxed out settings) and turned ASW on with CTRL+4, and got the following results:

 

Frames: 2695 - Time: 60000ms - Avg: 44.917 - Min: 43 - Max: 46

 

With ASW off (CTRL+1) I got the following with those settings:  Frames: 3155 - Time: 60000ms - Avg: 52.583 - Min: 44 - Max: 85

[BeastyBaiter]

The I5-4690 is a locked chip at 3.5 to 3.9 GHz I think, it is slower than my R5 1600x in single thread performance. I know because that was my previous CPU and it's still sitting in a half cannibalized PC next to me. In any case, there is no way to bump the frame rate up with that system. Whether you have a $750 GTX 1080 TI or a $150 GTX 1050 TI won't make any difference in IL2:BoX because the game maxes out a single CPU thread and chokes on it. This is due to the way the graphics engine is coded. You can try dropping the preset to medium and reducing shadows, draw distance and so on as much as possible. That will allow you to have 90 fps at times, but you will still see mostly 45 fps.

[[FF]frostysauce]

Well that is good to know at least, the only thing keeping me on this gen is that Intel plays that game where you have to change chipsets every 1-2 generations and I just really don't feel like doing that. Someone was offering me a K series i7-4790K - I might jump to that if it will really help. don't want to bottleneck the 1080Ti

[SCG_Fenris_Wolf]

Then you need an i7 7700K, overclock it to 4.9GHz, it runs on 4.7-4.8GHz continuously, since SteamVR or IL2 fire up AVX throttling. Also, very important to the extend of 10-20fps towards 90fps, is your DDR4's RAM speed. You should aim for 3200MHz.

 

Only then you won't throttle your system. As the guys said, IL 2 is CPU and RAM speed locked in VR, not by the graphics card. Of course, that's not the ideal information to you since you just upgraded the GPU, but it's the right information.

 

 

P.S. Avoid Ryzen, very low performance here

P.P.S. the jump to i7 7700k will more than double your framerate, even when on just a gtx1070. We've made extensive tests in another thread

Edited September 3, 2017 by 2./JG51_Fenris_Wolf

[chiliwili69]

 

 

The I5-4690 is a locked chip at 3.5 to 3.9 GHz I think, it is slower than my R5 1600x in single thread performance.

 

The Single Thread Mark of the i5-4690 is 2215 at base clock 3.5GHz.

The Single Thread Mark of the Ryzen 1600x is 1945 at base clock 3.6GHz. But with OC to 4.0 you reached 2135.

[BeastyBaiter]

That's just a synthetic benchmark though, in actual gaming performance it's about 20% higher in single thread compared to the old I5-4690. I suspect the passmark ST rating is looking at compression or something, where it does score lower on a thread per thread basis (though it scores higher in decompression, intel chips are more symmetric I've noticed).

Edited September 3, 2017 by BeastyBaiter

[chiliwili69]

 

 

Someone was offering me a K series i7-4790K - I might jump to that if it will really help.

 

Since hardware matters for IL-2 VR, we created a thread to analyze that and try to make some "science" from all previous "I think, I suspect but no sure, someone told me, I had low fps when my dog is next to me, I had nice fps after the third beer, etc, etc".

 

Please read this thread:

https://forum.il2sturmovik.com/topic/29322-measuring-rig-performance-common-baseline/

and take a look of the collected data:

https://docs.google.com/spreadsheets/d/1gJmnz_nVxI6_dG_UYNCCpZVK2-f8NBy-y1gia77Hu_k/edit?usp=sharing

 

I upgraded to a 4790K from a 4790 and it was a good investment. the 4790K is the top for the socket.

But you will need to do overclocking:

https://forum.il2sturmovik.com/topic/29881-overclocking-4790k-better-bos-performance/

 

So, if don´t want to change socket, go for 4790K, with your 1080Ti it will run quite well and you will be able to do good SS.

 

But take two items into account:

 

1.- RAM is important. The faster the better. But in your socket you can only go to DDR3. So it limits you max speed. If you are below 2400 you might consider upgrade.

2.- Provide a good CPU cooler (Air or water): The better cooling the more overclocking you will be able to reach.

[chiliwili69]

That's just a synthetic benchmark though

 

Of course it is a synthetic benchmark (all benchmark software is synthetic), but the important thing here is that the Passmark Single Thread Mark (STMark) value is well correlated to the performance achieved in IL-2, both in VR (blue) and monitor (red). And here we talk about IL-2, not other games.

STMark is a combination three sub-tests of CPU MArk: Floating Point Test, Sorting Test and Compression test

Edited September 3, 2017 by chiliwili69

[BeastyBaiter]

The 20% difference was in DCS, didn't check BoS since performance was never an issue until moving to VR. But has a very similar program style (mostly single thread).

Edited September 3, 2017 by BeastyBaiter