VR Performance drops after respawns

[Chimplicker]

I'm not sure if anyone else experiences this but its bugging the life out of me.

When I first load into DCS and onto a server I get lovely smooth VR performance, its next to perfect without any tearing, hesitation and FPS issues.  However as I get shot down and respawn it gets progressivly slower and choppier, by the 4th respawn I have to close DCS entirely and load it up again.  Its like there is a memory leak or something.

PC Specs:

AMD 5900x

3080 GPU

32 gig 3600MHz Ram

Installed on an NVME and a large Pagefile setup.

 

Does anyone else experience this?  Is there a fix or if it is a memory leak would throwing another 32gigs of RAM into the system be a short term fix?

 

[winghunter]

yep, memory leak or something

lowering texture res and uninstalling shader mods helped me. It still happens but far less often.

 

[Chimplicker]

Ahhh ok I'll make the adjustments suggested.

 

Hopefully its something they resolve in upcoming updates.

[Viper ZA]

I have the same problem. Plays fine until I respawn. Sometimes it's not to bad if I stick to the same module, but changing module and I get like single digit frames. and long loading times. Rebooting is annoying even if I am using a high speed NVME.

[Chimplicker]

Aye restarting is just annoying for me, I have my PC connected to the Telly so if the wifes watching TV I have to launch into VR blind.

 

[edmuss]

Turning HAGS on pretty much eliminates this for me

[Chimplicker]

I've turned HAGS back on, I will test it later today, would be great if it did fix the issue.

[edmuss]

Note that in some instances HAGS can have a negative impact as well, off the top of my head I think don't think it plays nicely with the WMR/steamvr smoothing unless force dx11 is turned on.  The other alternative is to pause and alt tab till the frametimes settle down but that can take between 10 seconds and 5 minutes, it's also a temporary fix and the problem often reoccurs....

edit: just did a couple of quick and dirty tests with HAGS on in conjunction with the force DX11 settings.  It seems that the WMR motion smoothing on auto does work happily with HAGS now (could have been a steamvr update fixed it) with DX11 forced both on and off, I do seem to get about 1ms lower frametimes with DX11 forced on though.

Edited February 23, 2022 by edmuss

[Chimplicker]

Tried it with HAGS back on, didn't see any worse performance but it also had the same problem.

I did have some luck with the Alt-Tab method though, no idea why that would work but it did.

[edmuss]

Assuming that you did restart your machine to set HAGS, hooray for VR

Did you test both DX11 forced on and off?

[Chimplicker]

Yes I performed a reboot but I didn't force DX11.

Wish they would hurry up with Vulcan support.