This is sorta my last ditch effort to see if I can actually get to play DCS and get some enjoyment from what I spent on the A10-C module. First a bit about my PC then the issues.
PC Details
Core i7 4770k 3.5 Ghz (non-OCed)
32 GB DDR3
2 Samsung EVO 850 256GB SSD RAID
1 Samsung 7200 RPM SATA (data drive, game run from SSD)
Zotac Amp!Extreme GTX 1080 8GB
ASUS ROG Hero VII MB
Gigabit NIC, 100MB down, 25MB up net connection
Thrustmaster Warthog HOTAS
VKBSim Mark IV flight pedals
Pagnain V2 Motion Seat Platform
Oculus Rift
3 27" 1080p 60hz Samsung displays
Thrustmaster TX racing wheel, Fanatec V2 Pedals, Fanatec SQ Shifter, Custom handbrake
Custom USB Button box / racing dash
(I only mention the racing hardware incase there is some bizarre conflict, I've tried them disconnected)
Problem Details
When in cockpit (in VR) there is a momentary stutter/pause every 2 or so seconds. It's about 15-30 frames or so (from observation, not a scientific measurement). It's consistent from the minute I'm in air for as long as I fly, starts immediately. If I hold perfectly still it still stutters, if I look around in VR it gets quite a bit worse, huge stutters as new terrain is drawn in.
What I've Tried
I've read a number of threads about this or issues like it and have tried a number of things. A few of them are:
- In game visual settings make no difference. Have tried everything at their lowest to everything at highest and there is zero difference
- Disabled hyperthreading
- Disabled CPU power management
- Set Windows power management to "off", basically setting everything to performance / no throttling
- Set the Nvidia driver to always prefer performance
- "Other" BIOS settings (can't find the thread now but used a thread that had a number of changes to try)
- Originally installed to my SATA drive then installed to SSD
- Created a 20GB RAM Disk and installed there
- Full uninstall/clean of video drivers, reinstall
- Confirmed all drivers are current
- All Windows 10 updates, Anniversary edition
- Have played without VR, same issues
- Have used several version of Oculus Home, same issues (has happened since purchase)
- Clearly a gaming focused machine, play many other AAA titles perfectly. Most notably Elite Dangerous with multiple add-on apps and software for my motion platform and additional hardware
- Have tried right after a complete clean Windows 10 install (after all current drivers)
- Tried setting the DCS thread to high priority via launching from a batch file
- Tried flying the A10-C and the default plane that is included (just can't remember it now)
- Playing in Single player
- Using Windows Defender AV, no secondary or other anti-malware (very clean machine, I'm a senior network engineer)
- No other busy or large background processes. The machine is my Plex server but I've been sure to stop that to ensure it's transcoding processes are not running (as they can effect Elite).
- As I've worked in IT for 20 years I've done a lot of performance tuning in my day, this current build is fairly vanilla with only a handful of services stopped (I can share the list but I can also assure you nothing even remotely related)
UPDATE - new things I've tried with no good results
- Setting the DCS process to high priority
- Verifying that maxfps isn't set
- Deleted DCS folder in my Windows profile
- Set Preload Radius to maximum
- Confirmed that none of the Asus add-on tools (Sonic Radar, etc.) are not installed/running
- No Anti Virus running (other than Windows Defender)
- No Cloud or other background service running using CPU (killed all that were, namely Dropbox)
- Confirmed that all Windows power/performance settings are disabled or set to max performance
- Verified the firmware on all drives, SSD and HDD, all are current.
- Have tried resetting the BIOS to defaults and to turn off hyperthreading and CPU throttling off. Again neither helped
- Fresh install of Windows, drivers then DCS, still stutters
- Have had DCS and OS installed to SSD, had OS on SSD and DCS on HDD
So that's the story, I'm at a loss as to what to try next. I've read threads that 1.5 isn't great with VR and that I should move to 2.0 beta but I'm not about to spend another dime on a game that I've already spend $50 on and haven't been able to play for more than a few minutes, instead spending hours trying to make it work. My system is well above the recommended specs and I've gotten replies from several users to my Steam review with significantly less powerful hardware than I have who have no issues. As a huge fan of VR and flight sims and owner of the Thrustmaster Warthog I've wanted to get into DCS for a long time but every time I try I'm thwarted and it's simply unplayable. I don't think I'm being too picky as a stutter in VR like this can be extremely sickening.
I welcome any input you guys have otherwise I suppose DCS will just have to sit in my library of games that were a mistake to buy.
-Ross
Here's 2 Youtube videos showing the problems
VR Stutter test - starts at :26
Non-VR Stutter test - starts at :14