agathorn Posted May 29, 2019 Share Posted May 29, 2019 So I recently upgraded from a Rift to a Rift S and now that I can actually READ the cockpit I want to spend most of my time flying in VR. To that end I started working on tuning my settings to get the right performance. As it is a lot easier to tweak settings outside of VR, I set up a basic F5 test mission in Nevada with no AI planes. Using non-VR m,ode with a 4K monitor, I then boot up and just tweak settings without moving or flying around. The view is fixed. I figure if I have good FPS on a 4k monitor that should be a fairly good proxy. However while doing this I noticed something odd. When I first start up the mission with my current settings, I am getting around 100fps. Pretty solid between about 90-100fps. This however gets lower and lower the longer I let the sim run. And not slowly. Starting around 100fps, within 5 minutes its down to around 50fps! Again, with nothing really changing. I don't even look around. Completely static view. Specs: i7-4770k, GTX 1080ti, 32gb RAM Intel i7-4770k @ 4.4ghz, 32gb ram, GTX 1080ti, Oculus Rift S Advanced apologies if my post contains typos or missing letters. Many of my posts are typed on a laptop with an old keyboard that has a personality all its own. Link to comment Share on other sites More sharing options...
ravenzino Posted May 29, 2019 Share Posted May 29, 2019 over heating causing degradation of performance, maybe? i9-9900K, G.Skill 3200 32GB RAM, AORUS Z390 Pro Wifi, Gigabyte Windforce RTX 2080 Ti, Samsung 960 Pro NVMe 512G + 860 Pro 1T, TM Warthog HOTAS, VKB T-Rudder, Samsung O+ F/A-18C, F-16C, A-10C, UH-1, AV-8B, F-14, JF-17, FC3, SA342 Gazelle, L-39, KA-50, CEII, Supercarrier Preordered. (Almost abandoned: CA - VR support please?) PG, NTTR Link to comment Share on other sites More sharing options...
Harlikwin Posted May 29, 2019 Share Posted May 29, 2019 Memory leak? New hotness: I7 9700k 4.8ghz, 32gb ddr4, 2080ti, :joystick: TM Warthog. TrackIR, HP Reverb (formermly CV1) Old-N-busted: i7 4720HQ ~3.5GHZ, +32GB DDR3 + Nvidia GTX980m (4GB VRAM) :joystick: TM Warthog. TrackIR, Rift CV1 (yes really). Link to comment Share on other sites More sharing options...
agathorn Posted May 29, 2019 Author Share Posted May 29, 2019 over heating causing degradation of performance, maybe? In the matter of just a few minutes? Not likely. The CPU is water cooled, and I've never had issues with the GPU before but I will break out the diagnostics. Exiting the mission and restarting it immediately jumps back to 100fps though before starting the same decline. Intel i7-4770k @ 4.4ghz, 32gb ram, GTX 1080ti, Oculus Rift S Advanced apologies if my post contains typos or missing letters. Many of my posts are typed on a laptop with an old keyboard that has a personality all its own. Link to comment Share on other sites More sharing options...
Harlikwin Posted May 29, 2019 Share Posted May 29, 2019 Yeah that sounds memory leaky... I know I'm super technical there, but I didn't make the code ;)… On the other hand I haven't seen that myself. Does it stop at 50FPS? I.e. you start at 100, it declines to 50 and stays there? Or does it keep going lower? New hotness: I7 9700k 4.8ghz, 32gb ddr4, 2080ti, :joystick: TM Warthog. TrackIR, HP Reverb (formermly CV1) Old-N-busted: i7 4720HQ ~3.5GHZ, +32GB DDR3 + Nvidia GTX980m (4GB VRAM) :joystick: TM Warthog. TrackIR, Rift CV1 (yes really). Link to comment Share on other sites More sharing options...
ravenzino Posted May 29, 2019 Share Posted May 29, 2019 In the matter of just a few minutes? Not likely. The CPU is water cooled, and I've never had issues with the GPU before but I will break out the diagnostics. Exiting the mission and restarting it immediately jumps back to 100fps though before starting the same decline. CPU/GPU could heat up and cool down really quick, even in seconds. In your case of several minutes, it could be the overall ventilation of your PC case, or maybe something else... Anyway, monitor your HW by using free tools like CPUID HWMonitor could help you to locate the problem. i9-9900K, G.Skill 3200 32GB RAM, AORUS Z390 Pro Wifi, Gigabyte Windforce RTX 2080 Ti, Samsung 960 Pro NVMe 512G + 860 Pro 1T, TM Warthog HOTAS, VKB T-Rudder, Samsung O+ F/A-18C, F-16C, A-10C, UH-1, AV-8B, F-14, JF-17, FC3, SA342 Gazelle, L-39, KA-50, CEII, Supercarrier Preordered. (Almost abandoned: CA - VR support please?) PG, NTTR Link to comment Share on other sites More sharing options...
agathorn Posted May 29, 2019 Author Share Posted May 29, 2019 I'm moving DCS over to my SSD then I'll do some more testing. Intel i7-4770k @ 4.4ghz, 32gb ram, GTX 1080ti, Oculus Rift S Advanced apologies if my post contains typos or missing letters. Many of my posts are typed on a laptop with an old keyboard that has a personality all its own. Link to comment Share on other sites More sharing options...
javelina1 Posted May 29, 2019 Share Posted May 29, 2019 I'm moving DCS over to my SSD.... that's where she belongs! ;):thumbup: curious to hear your follow-up. :pilotfly: MSI MAG Z790 Carbon, i9-13900k, NH-D15 cooler, 64 GB CL40 6000mhz RAM, MSI RTX4090, Yamaha 5.1 A/V Receiver, 4x 2TB Samsung 980 Pro NVMe, 1x 2TB Samsung 870 EVO SSD, Win 11 Pro, TM Warthog, Virpil WarBRD, MFG Crosswinds, 43" Samsung 4K TV, 21.5 Acer VT touchscreen, TrackIR, Varjo Aero, Wheel Stand Pro Super Warthog, Phanteks Enthoo Pro2 Full Tower Case, Seasonic GX-1200 ATX3 PSU, PointCTRL, Buttkicker 2, K-51 Helicopter Collective Control Link to comment Share on other sites More sharing options...
agathorn Posted May 29, 2019 Author Share Posted May 29, 2019 that's where she belongs! ;):thumbup: curious to hear your follow-up. :pilotfly: Heh yeah no doubt but DCS is huge. Its like half my SSD! Intel i7-4770k @ 4.4ghz, 32gb ram, GTX 1080ti, Oculus Rift S Advanced apologies if my post contains typos or missing letters. Many of my posts are typed on a laptop with an old keyboard that has a personality all its own. Link to comment Share on other sites More sharing options...
M1Combat Posted May 29, 2019 Share Posted May 29, 2019 Post a trak so we can test it out too... Nvidia RTX3080 (HP Reverb), AMD 3800x Asus Prime X570P, 64GB G-Skill RipJaw 3600 Saitek X-65F and Fanatec Club-Sport Pedals (Using VJoy and Gremlin to remap Throttle and Clutch into a Rudder axis) Link to comment Share on other sites More sharing options...
agathorn Posted May 29, 2019 Author Share Posted May 29, 2019 Post a trak so we can test it out too... Sorry I don't know what that is. Can you tell me how? Intel i7-4770k @ 4.4ghz, 32gb ram, GTX 1080ti, Oculus Rift S Advanced apologies if my post contains typos or missing letters. Many of my posts are typed on a laptop with an old keyboard that has a personality all its own. Link to comment Share on other sites More sharing options...
etherbattx Posted May 29, 2019 Share Posted May 29, 2019 Yeah that sounds memory leaky... I know I'm super technical there, but I didn't make the code not sure about a memory leak. would that slow the system down? also, if it was a memory leak, wouldn’t we all have symptoms of it? Link to comment Share on other sites More sharing options...
agathorn Posted May 29, 2019 Author Share Posted May 29, 2019 Here is a copy of the mission file if you want the same. I'm not doing ANY THING just starting it up and sitting there.Free.miz Intel i7-4770k @ 4.4ghz, 32gb ram, GTX 1080ti, Oculus Rift S Advanced apologies if my post contains typos or missing letters. Many of my posts are typed on a laptop with an old keyboard that has a personality all its own. Link to comment Share on other sites More sharing options...
agathorn Posted May 29, 2019 Author Share Posted May 29, 2019 I moved DCS over to my SSD and then fired up SpeedFan and MSI Afterburner for metrics and started the mission. Turns out I was indeed getting some thermal throttling on the GPU after a couple minutes. I manually increased the fan speed for testing and that eliminated the thermal issue. The FPS is still varying wildly with occasional dips all the way into the 20s but its a lot better than it was. I made a short video if anyone wants to see the numbers. Intel i7-4770k @ 4.4ghz, 32gb ram, GTX 1080ti, Oculus Rift S Advanced apologies if my post contains typos or missing letters. Many of my posts are typed on a laptop with an old keyboard that has a personality all its own. Link to comment Share on other sites More sharing options...
agathorn Posted May 29, 2019 Author Share Posted May 29, 2019 Those random frame drops are driving me nuts. In VR I'm getting a rock solid 40fps except ever minute or two when it plummets to 25fps then climbs back up. And this is still doing nothing but sitting on the runway and holding my head relatively steady. Intel i7-4770k @ 4.4ghz, 32gb ram, GTX 1080ti, Oculus Rift S Advanced apologies if my post contains typos or missing letters. Many of my posts are typed on a laptop with an old keyboard that has a personality all its own. Link to comment Share on other sites More sharing options...
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