some1 Posted October 28, 2022 Share Posted October 28, 2022 This is Hornet Ready on the ramp instant action mission in 2.8, with RTX4090, Ryzen 5800X3D and Reverb G2. This is the same spot in 2.7 I made a week ago an posted on the forums, using the same hardware and settings: Compared to 2.7, the GPU frametime went up by roughly 10%. CPU frametime went up by roughly 30%. Yay. Notice the different look of shadows in 2.8. In 2.7 I used terrain object shadows set to "flat". Terrain object shadows options "flat" and "off" do not work correctly in 2.8, which may be the reason for the performance impact. See: https://forum.dcs.world/topic/311147-strange-behaviour-of-shadows-on-28/#comment-5074052 12 Hardware: VPForce Rhino, FSSB R3 Ultra, Virpil WarBRD, Hotas Warthog, Winwing F15EX, Slaw Rudder, GVL224 Trio Throttle, Thrustmaster MFDs, Saitek Trim wheel, Trackir 5, Quest Pro Link to comment Share on other sites More sharing options...
lt.shifty Posted October 28, 2022 Share Posted October 28, 2022 How did you get 2.8? Still no update for me even with trying to call dcs_updater with the 2.8 branch Link to comment Share on other sites More sharing options...
some1 Posted October 28, 2022 Author Share Posted October 28, 2022 It's only on the openbeta branch. Hardware: VPForce Rhino, FSSB R3 Ultra, Virpil WarBRD, Hotas Warthog, Winwing F15EX, Slaw Rudder, GVL224 Trio Throttle, Thrustmaster MFDs, Saitek Trim wheel, Trackir 5, Quest Pro Link to comment Share on other sites More sharing options...
Hotdognz Posted October 28, 2022 Share Posted October 28, 2022 Why is 2.7 sharper, the image looks way better than 2.8 2 Link to comment Share on other sites More sharing options...
darkman222 Posted October 28, 2022 Share Posted October 28, 2022 Same for me. Yesterday my high end PC with RTX 4090 was well capable of playing DCS with decent fps now its a stuttery mess. RTX 4090 +i12900 KF Pimax 8KX and Varjo Aero. I already created a thread in the VR subforums about it. ED needs to fix that. 1 Link to comment Share on other sites More sharing options...
durp Posted October 28, 2022 Share Posted October 28, 2022 (edited) same here, and the updated in-game fps counter doesn't even show the right values. it stayed at 40fps in a straight line. fpsVR showed a different story. and that matched the stuttering experience (80Hz, so halfrate is 40fps as goal) the session times were about the same, 2.8 half an hour shorter, same map, about the same player count DCS 2.7.xxxx DCS 2.8.xxxx Edited October 28, 2022 by durp missing labels 1 Link to comment Share on other sites More sharing options...
TEMPEST.114 Posted October 28, 2022 Share Posted October 28, 2022 Me too. Did a check yesterday = Persian Gulf 45-50fps. Today 22-24. Thanks for the 'VR Optimisations'. Really great job. I now can't play anymore. 3 1 Link to comment Share on other sites More sharing options...
pastranario3 Posted October 28, 2022 Share Posted October 28, 2022 I also have a drop in fps, from a stable 45 to 25 fps. 12900k ddr6600 3090 hpreverb. unplayable 3 Link to comment Share on other sites More sharing options...
Rudel_chw Posted October 28, 2022 Share Posted October 28, 2022 On this video test, by @ismaeljorda, the performance drop does not seem very significant: 1 For work: iMac mid-2010 of 27" - Core i7 870 - 6 GB DDR3 1333 MHz - ATI HD5670 - SSD 256 GB - HDD 2 TB - macOS High Sierra For Gaming: 34" Monitor - Ryzen 3600X - 32 GB DDR4 2400 - nVidia GTX1070ti - SSD 1.25 TB - HDD 10 TB - Win10 Pro - TM HOTAS Cougar - Oculus Rift CV1 Mobile: iPad Pro 12.9" of 256 GB Link to comment Share on other sites More sharing options...
Eviscerador Posted October 28, 2022 Share Posted October 28, 2022 I'm also having a noticeable FPS and performance drop. Sure my rig is not even close to the spaceships you have here, but before 2.8 I was flying in the 30 something FPS with a 2070 and a Reverb G2, now I can barely go above 20 FPS, no matter map or plane. Funny thing, Syria which is usually a resource hog is behaving more or less the same, but in Caucasus I went from rock steady 45 FPS to 30 something, same on the gulf (flying over Dubai now is slideshow, when before it was 28-30 FPS) Dunno what they did, but they have messed a lot with VR performance. [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
TEMPEST.114 Posted October 28, 2022 Share Posted October 28, 2022 3 minutes ago, Rudel_chw said: On this video test, by @ismaeljorda, the performance drop does not seem very significant: Oh well if it's fine for the person, I guess the rest of us shouldn't worry then right? How does posting this help the people who are reporting massive FPS drops? Everyone in my sqn tonight even those with 12900k's and 3080ti's all reported drops from a little to massive. But as long as this person is fine then eh? 2 3 Link to comment Share on other sites More sharing options...
Sr. Posted October 28, 2022 Share Posted October 28, 2022 Show of hands... how many here are running a 4090? 3 Ryzen 7 5800X3D | 64GB DDR4 3600| MSI RTX 4080 16GB Ventus 3X OC | Samsung 970 Evo 2TB NVME | HP Reverb G2 | DIY Head Tracker Cap | Logitech X-56 throttle | VKB NXT Premium | Win 11 "Any sufficiently advanced technology is indistinguishable from magic." --Arthur C Clark Link to comment Share on other sites More sharing options...
RaisedByWolves Posted October 28, 2022 Share Posted October 28, 2022 Lol Link to comment Share on other sites More sharing options...
Eviscerador Posted October 28, 2022 Share Posted October 28, 2022 8 minutes ago, Sr. said: Show of hands... how many here are running a 4090? I can't even fit one on my rig 4 [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
Rudel_chw Posted October 28, 2022 Share Posted October 28, 2022 1 hour ago, Elphaba said: Oh well if it's fine for the person, I guess the rest of us shouldn't worry then right? Just trying to put in perspective the "large performance drop" as some claims looked a bit exagerated. 4 For work: iMac mid-2010 of 27" - Core i7 870 - 6 GB DDR3 1333 MHz - ATI HD5670 - SSD 256 GB - HDD 2 TB - macOS High Sierra For Gaming: 34" Monitor - Ryzen 3600X - 32 GB DDR4 2400 - nVidia GTX1070ti - SSD 1.25 TB - HDD 10 TB - Win10 Pro - TM HOTAS Cougar - Oculus Rift CV1 Mobile: iPad Pro 12.9" of 256 GB Link to comment Share on other sites More sharing options...
XCNuse Posted October 28, 2022 Share Posted October 28, 2022 Just now, HunterICX said: By showing a video without the new clouds and a CPU that's bottlenecking the GPU. That test run is worthless. Not to mention on a map that didn't change and shouldn't show ANY performance alterations. No offense to the person that created this video; but we SHOULD be seeing ZERO difference in performance here; not a little... NONE! Howevever, by the end of the video we're still looking at still a very measurable decrease. 2 Link to comment Share on other sites More sharing options...
Rudel_chw Posted October 28, 2022 Share Posted October 28, 2022 (edited) 1 hour ago, XCNuse said: Not to mention on a map that didn't change and shouldn't show ANY performance alterations. The OP used the same map. Edited October 28, 2022 by Rudel_chw For work: iMac mid-2010 of 27" - Core i7 870 - 6 GB DDR3 1333 MHz - ATI HD5670 - SSD 256 GB - HDD 2 TB - macOS High Sierra For Gaming: 34" Monitor - Ryzen 3600X - 32 GB DDR4 2400 - nVidia GTX1070ti - SSD 1.25 TB - HDD 10 TB - Win10 Pro - TM HOTAS Cougar - Oculus Rift CV1 Mobile: iPad Pro 12.9" of 256 GB Link to comment Share on other sites More sharing options...
XCNuse Posted October 28, 2022 Share Posted October 28, 2022 (edited) 1 minute ago, Rudel_chw said: The OP used the same map. It's Caucasus; which saw zero changes. My point is that like for like, there should be ZERO performance differences in these videos. Not even a little. Meanwhile a guy in my group said his performance on PG dropped to half what he's used to; and crashed SIX! Times. Edited October 28, 2022 by XCNuse 2 Link to comment Share on other sites More sharing options...
GGTharos Posted October 28, 2022 Share Posted October 28, 2022 Have you tried turning off ice halos? I got bad results with that on. 2 [sIGPIC][/sIGPIC] Reminder: SAM = Speed Bump :D I used to play flight sims like you, but then I took a slammer to the knee - Yoda Link to comment Share on other sites More sharing options...
TEMPEST.114 Posted October 28, 2022 Share Posted October 28, 2022 26 minutes ago, Rudel_chw said: Just trying to put in perspective the "large performance drop" as some claims looked a bit exagerated. I think 45 down to 22-24 isn't EXAGERATED. 5 Link to comment Share on other sites More sharing options...
Noctrach Posted October 28, 2022 Share Posted October 28, 2022 (edited) 53 minutes ago, Rudel_chw said: On this video test, by @ismaeljorda, the performance drop does not seem very significant: Respectfully, even in this video we're looking at a ~10% average frametime increase, which is pretty significant. The fact it doesn't impact his experience by virtue of having both the fastest GPU and CPU available on the consumer market today does not really discount that. Interesting is also the increase of VRAM usage by 1GB, while simultaneously using a little less system memory. Edited October 28, 2022 by Noctrach 5 Link to comment Share on other sites More sharing options...
Rudel_chw Posted October 28, 2022 Share Posted October 28, 2022 1 hour ago, Noctrach said: Respectfully, even in this video we're looking at a ~10% average frametime increase, which is pretty significant. I understand ... just was trying to bring perspective .. the thread title suggest a large decrease in performance .. to me that brings to mind something very different from a 10% drop. For work: iMac mid-2010 of 27" - Core i7 870 - 6 GB DDR3 1333 MHz - ATI HD5670 - SSD 256 GB - HDD 2 TB - macOS High Sierra For Gaming: 34" Monitor - Ryzen 3600X - 32 GB DDR4 2400 - nVidia GTX1070ti - SSD 1.25 TB - HDD 10 TB - Win10 Pro - TM HOTAS Cougar - Oculus Rift CV1 Mobile: iPad Pro 12.9" of 256 GB Link to comment Share on other sites More sharing options...
Noctrach Posted October 28, 2022 Share Posted October 28, 2022 1 minute ago, Rudel_chw said: I understand ... just was trying to bring perspective .. the thread title suggest a large decrease in performance .. to me that brings to mind something very different from a 10% drop. Fair but 10% frametime on a 4090 might scale very differently on weaker systems. 2D scales very differently from VR, etc. OP's VR post with the same scene seems to indicate a 15% GPU and near 30% CPU frametime increase with the same hardware. Even as a worst case, that is immense. Similar RAM and VRAM changes as the posted video. 4 Link to comment Share on other sites More sharing options...
ldnz Posted October 29, 2022 Share Posted October 29, 2022 Check motion blur - I just turned off and went from 31 -> 40+ fps on PG AH-64 UAE weapons range instant action. No other setting (shadows etc) made any notable difference. But motion blur reliably causes that penalty Link to comment Share on other sites More sharing options...
durp Posted October 29, 2022 Share Posted October 29, 2022 5ms frametime increase is quiet huge in VR and can turn from playable to unplayable. (the x-axis in my graphs is in ms) motionblur: off shadows: flat terrain object shadows: disabled secondary shadows: disabled visibility: medium (I had it on High during dcs2.5 times..) ice halos? (what setting is that?) fxo shaders were cleared before launching 2.8. in 2.7.xxx when flying out to the sea (caucasus) it usually ramped up to 70ish fps which is about 15ms (14.3) with the yesterdays update it stuck at 20.1ms or so (which would be about 50fps, but since this fps ramping was causing stuttering I clamped VR to 40fps, and if my HMD would support 60hz I would have to target 30fps, but it doesn't) Link to comment Share on other sites More sharing options...
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