Sawydz Posted January 22, 2019 Share Posted January 22, 2019 (edited) Greeting everyone, and sorry for my english. Few days ago I have noticed strange bug. In short, when flying at low level with radar altimeter ON, my PFS drops from 50-80 to 14. FPS drops exactly at the moment when RAD ALT reading changes from **** to any value, so it happens on descend, or on tight turns. What is strange, is that it does not happen right after take off, but only after some time spent flying, and the longer I'm flying at high level, the bigger FPS hit will be when I will descend to lower altitude. I have created video showing what happens. Most of it is "spam" to spend some time. In this case I spent in air only abut 15 minutes, so FPS got cut to 24. The monet I turn RAD ALT off, fps goes back to proper level, and everything runs smoothly again. Edited January 23, 2019 by Sawydz Link to comment Share on other sites More sharing options...
birkenmoped Posted January 22, 2019 Share Posted January 22, 2019 (edited) Hey, that would actually explain some heavy FPS drops during landing approaches. (I never had any FPS problems with other airplanes or helicopters!) I couldn't make any sense of what this could be because it didn't always happen. By the way, I always activated the radar altimeter. I would never have thought of switching off the radar altimeter! Thanks for the hint! I will try to test or confirm the days. Edited January 22, 2019 by birkenmoped Link to comment Share on other sites More sharing options...
Sawydz Posted January 23, 2019 Author Share Posted January 23, 2019 When I noticed this bug, I started to turn everything off, one by one, to find what triggers it. At first I tought it was main radar, but later I found it's caused by radar altimeter. Other strange thing is, and it's captured on video, that my FPS counter starts to indicate good performance (like about 50 fps), but graphics still stutters as if it was below 20. Link to comment Share on other sites More sharing options...
birkenmoped Posted January 23, 2019 Share Posted January 23, 2019 This is consistent with my feeling that headtracking via TrackIR seemed to be very even, but the outside world was jerking around. Link to comment Share on other sites More sharing options...
Ramsay Posted January 23, 2019 Share Posted January 23, 2019 (edited) I have created video showing what happens. Most of it is "spam" to spend some time. In this case I spent in air only abut 15 minutes, so FPS got cut to 24. The monet I turn RAD ALT off, fps goes back to proper level, and everything runs smoothly again. Format OP's video link to make it viewable on the forum (15:22 seems a good example). Edited January 23, 2019 by Ramsay i9 9900K @4.7GHz, 64GB DDR4, RTX4070 12GB, 1+2TB NVMe, 6+4TB HD, 4+1TB SSD, Winwing Orion 2 F-15EX Throttle + F-16EX Stick, TPR Pedals, TIR5, Win 10 Pro x64, 1920X1080 Link to comment Share on other sites More sharing options...
Sawydz Posted January 23, 2019 Author Share Posted January 23, 2019 Ramsey, link edited. First part, even tough boring, is important as it's is prove that low FPS is not related to my slightly outdated hardware :) Link to comment Share on other sites More sharing options...
DataX Posted January 31, 2019 Share Posted January 31, 2019 I can confirm that bug. I can reproduce it. It´s definitely the radar altimeter that causes massive fps drop. It´s not at the beginning of a mission, but after a while flying high. I can sometimes barely land with the radar altimeter on. Data Link to comment Share on other sites More sharing options...
birkenmoped Posted February 1, 2019 Share Posted February 1, 2019 Would be nice to get some ack from the Devs. (10 days aft report) Not only on this report... Link to comment Share on other sites More sharing options...
Esac_mirmidon Posted February 2, 2019 Share Posted February 2, 2019 Im experience the same. After a long Hight altitude flight going low with Radar Alt ON is cutting my FPS to half, from steady 60 to 30. " You must think in russian.." [sIGPIC][/sIGPIC] Windows 7 Home Premium-Intel 2500K OC 4.6-SSD Samsung EVO 860- MSI GTX 1080 - 16G RAM - 1920x1080 27´ Hotas Rhino X-55-MFG Crosswind Rudder Pedals -Track IR 4 Link to comment Share on other sites More sharing options...
=DECOY= Posted February 3, 2019 Share Posted February 3, 2019 Guys have you got track files for this ? Water cooled i9-9900K | Maximus Code XI MB | RTX3090 | 64GB | HP Reverb G2 Link to comment Share on other sites More sharing options...
33-DFTC Posted February 3, 2019 Share Posted February 3, 2019 (edited) Seriously ? -_- All the Mirage pilots on my virtual squadron is experiencing this problem, the most active users of this subforum is reporting the same problem and you still need a track file to prove it ? Nobody on the dev team can fire up his game and go to instant action to check it by himself ? This will take less time than waiting for a track file from a user and reviewing it. Please Razbam, you need to step up your game. Confidence is getting very low over here. Edited February 3, 2019 by 33-DFTC There are only two types of aircraft, fighters and targets. - Major Doyle "Wahoo" Nicholson, USMC Link to comment Share on other sites More sharing options...
Esac_mirmidon Posted February 3, 2019 Share Posted February 3, 2019 I will help with that Decoy. Later i will attach one to help you. Thanks for your interest. " You must think in russian.." [sIGPIC][/sIGPIC] Windows 7 Home Premium-Intel 2500K OC 4.6-SSD Samsung EVO 860- MSI GTX 1080 - 16G RAM - 1920x1080 27´ Hotas Rhino X-55-MFG Crosswind Rudder Pedals -Track IR 4 Link to comment Share on other sites More sharing options...
Flagrum Posted February 3, 2019 Share Posted February 3, 2019 Seriously ? -_- All the Mirage pilots on my virtual squadron is experiencing this problem, the most active users of this subforum is reporting the same problem and you still need a track file to prove it ? Tracks are used to replicate the problem, saving the testers the hazzle and time to set up the exact conditions that lead to a bug. They have to replicated it over and over again, to find the actual component or part of the code that is responsible for the error. It is not so much about (not) trusting a bug report, but easing and speeding up the process of testing. Seriously. Link to comment Share on other sites More sharing options...
Esac_mirmidon Posted February 3, 2019 Share Posted February 3, 2019 Ok =DECOY= This is a track recorded with the FPS hit we are talking about. The first 20 minutes is just a flight going high and doing orbits around 29.000 feet. The next 10 minutes i was flying low doing different things with the FPS counter activated. 1.- Flying INSIDE Radar Altimeter readings with Radar Alt ON cuts my FPS from 60 to 40, heavy stutter moving my head and choppiness all around. 2.- Flying INSIDE Radar Altimeter readings with Radar Alt OFF makes my FPS recovered inmediatly. 3.- Flying INSIDE Radar Altimeter readings with Radar Alt ON but BANKING until the readings get lost makes the FPS recover. Returning to wings level INSIDE Radar Altimeter Readings with Radar Alt ON makes the FPS hit again. 4.- Starting low with FPS hit and going high until the Radar Alt readings are outside the radar altitude limits makes the FPS recovering again. 5.- Flying high outside Radar Alt readings limits with FPS normal and going low, the moment the Radar alt starts the readings makes the FPS again going low again. https://mega.nz/#!RFAXCCpK!doHSeaEgs_crjdBPJqTk4uZhj7VtD1CYOdqQVZYfNKQ Thanks a lot for your time looking at this. " You must think in russian.." [sIGPIC][/sIGPIC] Windows 7 Home Premium-Intel 2500K OC 4.6-SSD Samsung EVO 860- MSI GTX 1080 - 16G RAM - 1920x1080 27´ Hotas Rhino X-55-MFG Crosswind Rudder Pedals -Track IR 4 Link to comment Share on other sites More sharing options...
crcr7 Posted February 7, 2019 Share Posted February 7, 2019 +1, Can record track here if it would be helpful. Thanks Link to comment Share on other sites More sharing options...
Esac_mirmidon Posted February 7, 2019 Share Posted February 7, 2019 Is already included in the bug tracker. Thanks guys. " You must think in russian.." [sIGPIC][/sIGPIC] Windows 7 Home Premium-Intel 2500K OC 4.6-SSD Samsung EVO 860- MSI GTX 1080 - 16G RAM - 1920x1080 27´ Hotas Rhino X-55-MFG Crosswind Rudder Pedals -Track IR 4 Link to comment Share on other sites More sharing options...
Whozdär Posted February 16, 2019 Share Posted February 16, 2019 See here, can close that one. https://forums.eagle.ru/showthread.php?t=227968 At least shows the bug was spotted end of december already. Note: it was likely introduced a few days or weeks before my initial report as I'm regularly going back to campaign missions and had never spotted that. Link to comment Share on other sites More sharing options...
Ramsay Posted March 21, 2019 Share Posted March 21, 2019 (edited) Radar altimeter bug is still present in 2.5.4.28615 Open Beta. After 50 min of trouble free co-op gameplay, I came to land at Kobuleti RWY 07 and switched from ZB (barometric) to H (radar altimeter) - the frame rate dropped from 45 to 15. Switching back to ZB, the framerate returned to normal. Edited March 21, 2019 by Ramsay Add short video i9 9900K @4.7GHz, 64GB DDR4, RTX4070 12GB, 1+2TB NVMe, 6+4TB HD, 4+1TB SSD, Winwing Orion 2 F-15EX Throttle + F-16EX Stick, TPR Pedals, TIR5, Win 10 Pro x64, 1920X1080 Link to comment Share on other sites More sharing options...
myHelljumper Posted March 21, 2019 Share Posted March 21, 2019 Radar altimeter bug is still present in 2.5.4.28615 Open Beta. Yes, same with the D/RLT frame rate drop. Helljumper - M2000C Guru Helljumper's Youtube https://www.youtube.com/channel/UCK3rTjezLUxPbWHvJJ3W2fA Link to comment Share on other sites More sharing options...
Shimmergloom667 Posted April 19, 2019 Share Posted April 19, 2019 Just grabbed it in the spring sale, can confirm: Radar Altimeter frame drop from ~80 to ~25 after a long mission still present in open beta 2.5.4.29585. Disabling radar altimeter instantly brings FPS back. i7 - 9700K | 32 GB DDR4 3200 | RTX 2080 | VKB Gunfighter Mk II /w MCG Pro | Virpil T-50CM2 Throttle | TrackIR 5 | VKB Mk. IV AJS-37 | A/V-8B | A-10C | F-14A/B | F-16C | F-18C | F-86F | FC3 | JF-17 | Ka-50 | L-39 | Mi-8 | MiG-15bis | MiG-19 | MiG-21bis | M2000-C | P-51D | Spitfire LF Mk. IX | UH-1H Link to comment Share on other sites More sharing options...
XtraChrisP Posted April 19, 2019 Share Posted April 19, 2019 So glad I stumbled across this thread. Have a mission where I do a low level into Bandar Abas and drop some 82SEs on a runway, but found it unplayable recently. Glad I know how to fix it now. Link to comment Share on other sites More sharing options...
viper2097 Posted April 20, 2019 Share Posted April 20, 2019 Maybe Raubam would like to fix that really heavy bug after more then three months of aknowledge? Steam user - Youtube I am for quality over quantity in DCS modules Link to comment Share on other sites More sharing options...
33-DFTC Posted April 20, 2019 Share Posted April 20, 2019 I don't think we'll see anything before the MLO. There are only two types of aircraft, fighters and targets. - Major Doyle "Wahoo" Nicholson, USMC Link to comment Share on other sites More sharing options...
Knock-Knock Posted April 20, 2019 Share Posted April 20, 2019 It this really still a thing? Ive been flying the Mirage quite frequently the last couple of weeks, and I have yet to encounter it. And Im high alt for intercepts often, for quite some time, and then when coming in for landing, I switch Radar Alt on. - Jack of many DCS modules, master of none. - Personal wishlist: F-15A, F-4S Phantom II, JAS 39A Gripen, SAAB 35 Draken, F-104 Starfighter, Panavia Tornado IDS. | Windows 11 | i5-12400 | 64Gb DDR4 | RTX 3080 | 2x M.2 | 27" 1440p | Rift CV1 | Thrustmaster Warthog HOTAS | MFG Crosswind pedals | Link to comment Share on other sites More sharing options...
33-DFTC Posted April 20, 2019 Share Posted April 20, 2019 Yes, it's still a problem on the stable branch at least. There are only two types of aircraft, fighters and targets. - Major Doyle "Wahoo" Nicholson, USMC Link to comment Share on other sites More sharing options...
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