Advice on VR stutters/framerate drops?

[Ghostrider147]

Hello fellow pilots,

 

I recently got into VR and I absolutely love it, but I have a slight sorta issue. It should be no surprise that running VR is heavy on one's PC but even in quick missions I get framerate drops to 37-35 FPS when the situation gets a little CPU-heavy (multiple aircraft in a furball for instance). I run on medium-high graphics for the most part and I prefer play at 40 FPS with ASW on, on my Oculus Rift , with Open Composite. The issue persists also with ASW turned off.

 

Do you guys have any advice on how to fix these issues? I'm considering getting a beefy aftermarket cooler for my CPU to overclock it. Should that help?

 

Here are my system specs:

Ryzen 5 2600 (stock speeds) with standard cooler

16 GB DDR4 RAM, 2400 MHz (HyperX Fury)

Gigabyte AB350 Gaming 1 motherboard

Gigabyte RTX 2070 Super 8G (factory OC'd)

(And a 650W Corsair PSU)

 

Many thanks in advance! o7 

Edited November 23, 2019 by =F4U=Shady147_VR

[Mitthrawnuruodo]

24 minutes ago, =F4U=Shady147_VR said:

Ryzen 5 2600 (stock speeds) with standard cooler

 

Unfortunately, the Zen and Zen+ CPUs have awful single thread performance that becomes apparent in certain gaming workloads.

 

32 minutes ago, =F4U=Shady147_VR said:

Do you guys have any advice on how to fix these issues? I'm considering getting a beefy aftermarket cooler for my CPU to overclock it. Should that help?

 

Overclocking will not help significantly. The performance gap is just too large to overcome with any feasible overclock.

 

This is probably not what you hoped to hear, but the best solution would probably be to buy a Coffee Lake processor of some sort, such as an i5-9600K or i7-9700K. With a decent cooler and a mild overclock, this would give you close to the best possible performance.

[Ghostrider147]

15 minutes ago, Mitthrawnuruodo said:

 

Unfortunately, the Zen and Zen+ CPUs have awful single thread performance that becomes apparent in certain gaming workloads.

 

 

Overclocking will not help significantly. The performance gap is just too large to overcome with any feasible overclock.

 

This is probably not what you hoped to hear, but the best solution would probably be to buy a Coffee Lake processor of some sort, such as an i5-9600K or i7-9700K. With a decent cooler and a mild overclock, this would give you close to the best possible performance.

 

Thanks for the advice! I expected this already, Intel stuff is definitely the way to go for single thread performance. If I upgrade my rig in the future I'm probably gonna go with some high end i7 for that reason. I chose for Ryzen a while back because Intel's prices then were kinda very high  

Edited November 23, 2019 by =F4U=Shady147_VR

[Dark_Jak]

8 hours ago, =F4U=Shady147_VR said:

Hello fellow pilots,

 

I recently got into VR and I absolutely love it, but I have a slight sorta issue. It should be no surprise that running VR is heavy on one's PC but even in quick missions I get framerate drops to 37-35 FPS when the situation gets a little CPU-heavy (multiple aircraft in a furball for instance). I run on medium-high graphics for the most part and I prefer play at 40 FPS with ASW on, on my Oculus Rift , with Open Composite. The issue persists also with ASW turned off.

 

Do you guys have any advice on how to fix these issues? I'm considering getting a beefy aftermarket cooler for my CPU to overclock it. Should that help?

 

Here are my system specs:

Ryzen 5 2600 (stock speeds) with standard cooler

16 GB DDR4 RAM, 2400 MHz (HyperX Fury)

Gigabyte AB350 Gaming 1 motherboard

Gigabyte RTX 2070 Super 8G (factory OC'd)

(And a 650W Corsair PSU)

 

Many thanks in advance! o7 

If you don't mine gonna use your post so that way don't have to open a new one.

My prob its somewhat similar to your but my problem its with the dropped application frames I have frames from max 80fps (rift s here) to 55fps on high settings with no SS. But some stutter specially inside game when turning my head an going thought the cockpit. Even when I'm on the map menu with ott performance hud in on 80 fps but got the application dropped frames goes down almost every second. 

I'm just curious if I should keep my CPU for a while or invest in a new i7 9700k. 

Some fellas told me that's because of my 8gb of ram and should go for 16gb and it would solve that problem, just don't wanna invest in stick of ddr3 and not solving the problem.

 

Here's my rig

I5 4690k @ 4.6

8gb drr3 g.skill ares 

Mobo AsRock extreme 3 

GeForce RTX2070 super 

Oculus rift S 

[Ghostrider147]

8 hours ago, Dark_Jak said:

If you don't mine gonna use your post so that way don't have to open a new one.

My prob its somewhat similar to your but my problem its with the dropped application frames I have frames from max 80fps (rift s here) to 55fps on high settings with no SS. But some stutter specially inside game when turning my head an going thought the cockpit. Even when I'm on the map menu with ott performance hud in on 80 fps but got the application dropped frames goes down almost every second. 

I'm just curious if I should keep my CPU for a while or invest in a new i7 9700k. 

Some fellas told me that's because of my 8gb of ram and should go for 16gb and it would solve that problem, just don't wanna invest in stick of ddr3 and not solving the problem.

 

Here's my rig

I5 4690k @ 4.6

8gb drr3 g.skill ares 

Mobo AsRock extreme 3 

GeForce RTX2070 super 

Oculus rift S 

 

I think your case is pretty similar to mine indeed, your i5 is already a couple of generations old and IL-2 is pretty hungry for CPU performance. That probably means you're better off investing in that new CPU, but that also means you'll probably need DDR4 RAM and a new MoBo. You can check in the task manager if you're using all of your 8GB's of RAM, if that's not the case, adding a new stick of RAM won't really result in a notable performance increase I think 

Edited November 24, 2019 by =F4U=Shady147_VR

[dburne]

8 hours ago, Dark_Jak said:

If you don't mine gonna use your post so that way don't have to open a new one.

My prob its somewhat similar to your but my problem its with the dropped application frames I have frames from max 80fps (rift s here) to 55fps on high settings with no SS. But some stutter specially inside game when turning my head an going thought the cockpit. Even when I'm on the map menu with ott performance hud in on 80 fps but got the application dropped frames goes down almost every second. 

I'm just curious if I should keep my CPU for a while or invest in a new i7 9700k. 

Some fellas told me that's because of my 8gb of ram and should go for 16gb and it would solve that problem, just don't wanna invest in stick of ddr3 and not solving the problem.

 

Here's my rig

I5 4690k @ 4.6

8gb drr3 g.skill ares 

Mobo AsRock extreme 3 

GeForce RTX2070 super 

Oculus rift S 

 

I don't think increasing the ram would do much for you with current IL-2.

A later gen processor like i7 or i9 along with faster DDR4 ram and new motherboard would.

Edited November 24, 2019 by dburne

[SCG_Fenris_Wolf]

It's single thread performance for anything under 4.8GHz of clock speed from my experience, and unsuspecting culprits exist too: RGB control software, such as MysticLight / LEDKeeper.exe /RazerSynapse for example. Check them out as well. You can turn them off before flying in the task manager. Some are dependend from one another, so double check if one hasn't restarted 5s later after you have turnt it off already. Check taskschd.msc as well.

[Dark_Jak]

5 hours ago, SCG_Fenris_Wolf said:

It's single thread performance for anything under 4.8GHz of clock speed from my experience, and unsuspecting culprits exist too: RGB control software, such as MysticLight / LEDKeeper.exe /RazerSynapse for example. Check them out as well. You can turn them off before flying in the task manager. Some are dependend from one another, so double check if one hasn't restarted 5s later after you have turnt it off already. Check taskschd.msc as well.

Wolf sorry but didn't quiet get what your saying about the under 4.8Ghz and RGB being depend from one another. 
 

7 hours ago, dburne said:

 

I don't think increasing the ram would do much for you with current IL-2.

A later gen processor like i7 or i9 along with faster DDR4 ram and new motherboard would.

 

Yeah that was my first thought going for a new CPU-DDR4-Mobo. Just don't know if I go with the I7 8700k or i7 9700k, It may sound wierd but here the 9700k its cheaper then a the 9700K

 

7 hours ago, =F4U=Shady147_VR said:

 

I think your case is pretty similar to mine indeed, your i5 is already a couple of generations old and IL-2 is pretty hungry for CPU performance. That probably means you're better off investing in that new CPU, but that also means you'll probably need DDR4 RAM and a new MoBo. You can check in the task manager if you're using all of your 8GB's of RAM, if that's not the case, adding a new stick of RAM won't really result in a notable performance increase I think 

I've read it somewhere that the I5 4690K its not that good for VR in certain games, I''ve alredy check it and something I'm using 5gb and others I'll be at 7.3gb. 

[SCG_Fenris_Wolf]

2 hours ago, Dark_Jak said:

Wolf sorry but didn't quiet get what your saying about the under 4.8Ghz and RGB being depend from one another. 

I did not say they was a dependency between the two.

 

There is a dependency to frametime spikes from both though.

[Dark_Jak]

What would be your advise should I  go with the i7 9700k or i7 8700k. And what DDR4 Ram Speeds and CL do you recoment to combo with the processor. 
 

[dburne]

42 minutes ago, Dark_Jak said:

What would be your advise should I  go with the i7 9700k or i7 8700k. And what DDR4 Ram Speeds and CL do you recoment to combo with the processor. 
 

 

I would suggest 9700k, and 3200 MHz CL14 ram.

[chiliwili69]

As Don suggest the 9700K with a good CPU cooler (air or liquid) coupled with 16Gb at 3200MHz with CL14 is a safe bet.

 

But new AMD CPUs seems to be also competitive in single thread performance.

Read that:

https://forum.il2sturmovik.com/topic/54715-is-still-intel-better-than-amd-for-single-thread/

 

It would be good to have a benchmark track to just test different CPU/RAM on monitor 1080p. So we will be able to evaluate the new AMD line and the future Intel chips of 2020.

[Alonzo]

On 11/23/2019 at 10:33 AM, =F4U=Shady147_VR said:

Ryzen 5 2600 (stock speeds) with standard cooler

16 GB DDR4 RAM, 2400 MHz (HyperX Fury)

Gigabyte AB350 Gaming 1 motherboard

Gigabyte RTX 2070 Super 8G (factory OC'd)

 

Use Oculus Tray Tool to set Visible HUD to "application render timings". This will show CPU and GPU frame times. You need them under 12.5ms to maintain 80fps, and under 25ms to maintain 40fps. Get into a situation where you drop below the 40fps and see whether it's CPU or GPU causing it.

 

For your rig, I would recommend overclocking the CPU as you will get a little more out of it, and that RAM is really godawful slow. I'm sorry someone sold you that for Ryzen, because those chips benefit greatly from high speed RAM as it affects the infinity fabric between the CPU modules. You might see a decent improvement from OCing the CPU and going to 3200-CAS14 RAM. I don't think you're going to get to a solid 80FPS on that system but you should be able to maintain 40 ASW.

[Ghostrider147]

3 hours ago, Alonzo said:

 

Use Oculus Tray Tool to set Visible HUD to "application render timings". This will show CPU and GPU frame times. You need them under 12.5ms to maintain 80fps, and under 25ms to maintain 40fps. Get into a situation where you drop below the 40fps and see whether it's CPU or GPU causing it.

 

For your rig, I would recommend overclocking the CPU as you will get a little more out of it, and that RAM is really godawful slow. I'm sorry someone sold you that for Ryzen, because those chips benefit greatly from high speed RAM as it affects the infinity fabric between the CPU modules. You might see a decent improvement from OCing the CPU and going to 3200-CAS14 RAM. I don't think you're going to get to a solid 80FPS on that system but you should be able to maintain 40 ASW.

 

Thanks for the advice man! I was aware of the RAM speed thing, but RAM was godawfully expensive when I built my rig, so i went with the cheaper option, something I shouldn't have done looking back now... ? I'll also try the HUD with the OTT!

[Alonzo]

5 hours ago, =F4U=Shady147_VR said:

Thanks for the advice man! I was aware of the RAM speed thing, but RAM was godawfully expensive when I built my rig, so i went with the cheaper option, something I shouldn't have done looking back now... ? I'll also try the HUD with the OTT!

 

Yeah, that's a bummer. Honestly it might be worth biting the bullet and buying some faster stuff and selling the old stuff (even at a loss). 

 

You can grab a 240mm cooler (not the best one, but it's still a 240mm AIO) for about fifty bucks: https://pcpartpicker.com/product/RcdFf7/cooler-master-masterliquid-ml240l-rgb-667-cfm-liquid-cpu-cooler-mlw-d24m-a20pc-r1

 

And another $50 for 3200-CAS16 RAM (you need to get spendy for CAS-14) https://pcpartpicker.com/product/mcH8TW/gskill-aegis-16-gb-2-x-8-gb-ddr4-3200-memory-f4-3200c16d-16gis

 

So for about a hundred bucks you could sort that CPU out quite well.

 

Of course, the new Ryzen CPUs are really good and might work on your motherboard. The Ryzen 5 3600 is under $200 and gets you onto Zen 2 architecture which, as I understand it, is pretty damn good for single thread performance. I'm not sure if anyone's benched IL2 VR on that CPU and I'm sure Intel still has the edge on single thread performance, but it's a potential option (of course by that point you're at like $250 spent on a new CPU and RAM and maybe switching to intel mobo/chip/RAM could be the same price).

 

But yeah, get the HUD to tell you whether it's a CPU bottleneck or not before spending anything. I thought my system wasn't getting good enough cooling, and it's not, but some tweaking has gotten me somewhere I'm happy with for no money, when I was thinking about dropping $$ on a high-end liquid cooler (very high end).

[Ghostrider147]

7 hours ago, Alonzo said:

 

Yeah, that's a bummer. Honestly it might be worth biting the bullet and buying some faster stuff and selling the old stuff (even at a loss). 

 

You can grab a 240mm cooler (not the best one, but it's still a 240mm AIO) for about fifty bucks: https://pcpartpicker.com/product/RcdFf7/cooler-master-masterliquid-ml240l-rgb-667-cfm-liquid-cpu-cooler-mlw-d24m-a20pc-r1

 

And another $50 for 3200-CAS16 RAM (you need to get spendy for CAS-14) https://pcpartpicker.com/product/mcH8TW/gskill-aegis-16-gb-2-x-8-gb-ddr4-3200-memory-f4-3200c16d-16gis

 

So for about a hundred bucks you could sort that CPU out quite well.

 

Of course, the new Ryzen CPUs are really good and might work on your motherboard. The Ryzen 5 3600 is under $200 and gets you onto Zen 2 architecture which, as I understand it, is pretty damn good for single thread performance. I'm not sure if anyone's benched IL2 VR on that CPU and I'm sure Intel still has the edge on single thread performance, but it's a potential option (of course by that point you're at like $250 spent on a new CPU and RAM and maybe switching to intel mobo/chip/RAM could be the same price).

 

But yeah, get the HUD to tell you whether it's a CPU bottleneck or not before spending anything. I thought my system wasn't getting good enough cooling, and it's not, but some tweaking has gotten me somewhere I'm happy with for no money, when I was thinking about dropping $$ on a high-end liquid cooler (very high end).

 

I've done some test flights, the CPU bottleneck is pretty obvious. Thanks for the advice, but I'll probably save up some money and make a switch to an Intel CPU (9700k or something along those lines) + new mobo in the future. Then I'll look into a good cooling solution like you suggested too though, to get some overclocking done!  

[Gomoto]

Try to turn off the HUD (My FPS jumps from 60 to 90 FPS when their is heavy action and I turn off the HUD in VR. I play ultra graphics only when I fly duel or strafing runs. In high plane count scenarios, i use low graphics settings to reach the 90 FPS without HUD. It still looks stunning and the experience is better with the fluid 90 FPS in my opinion. (3600x & 1080Ti & Reverb)

Edited November 28, 2019 by Gomoto