Massive sudden drop of framerate
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Quad core wont run it? 20min suuupersmooth and then.it breaks… Seems odd to me to blame it on the.cpu clock…
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I overclock my CPU to 4.4GHz from 3.(something, can’t remember), and it makes a huge difference for me, more than any tweaking of my GPU does.
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I OC’d mine from 3.3 to 4.5 and it made a HUGE difference in BMS. OC to 4.8 and 5.0 and law of diminishing returns kicked in. I gained only a few fps after 4.5, and less at 5.0, so I backed it down to 4.5.
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Same experience here for the first time. After flying 4.33 64bit for 2 weeks now, never had issues.
Today Steady 40-60 FPS during Kunsan-airborn as usual. Doing MP with 1 other human player, 16 runs of LGBs with buddy lading for testing. Frames dropped to 25 when TGP on (normal).
But after 1h45min of flying, suddenly I got 20-25 looking outside with TGP off and a creakingly slow 8-10max (unworkable) when heads down (tgp off).
Didn’t have any profiling software or so running. No idea what caused it. -
Focaldesign your issue inspired me to install 4.32.
I flew around for nearly one hour withouth any issues. Constant good performance throughout the entire session.
This reinforces my suspicion that it is a software issue with 4.33 itself
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Hi, just had my first experience with extreme framedrop.
Normally I had >30fps in campaign and stutter free gameplay. But now after day one and ± 11:00 hours into campaign slowly my framerates started to drop, but also small hickups.
Ultimately the fps becomes <14 and totally unplayable. Even after 2 different missions and saves in between the issue stays.
Strange thing is after some investigation was that the drop is also noticable in 2d menu (campaignmap, mouse movement and in tactical reference while rotating)
First I thought something had changed on my side, but after restarting a new campaign my framerate where normal again >30 and everything smooth.
Reloading the first saved campaign brings back the framedrop and stuttering.
Then started a TE and framerates returned to normal.I am flying 64bit, but also tested using 32bit, but same result.
Also already played earlier campaigns in which I did not get the framedrop issue.This last campaign I did schedule the missions manually for the 80th only and also used the autoupdate option for weather files, but not sure if this could be related.
I will start a new campaign and see if and when the problem returns.
Another thing I forgot to mention is that when I pause the sim when the issue is there and <14 fps, the framerate increases to stable 46 fps?
Cheers Obi1
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I too have strange things appening. In general I have quite many stutters even if the frame rate is ~60. Then, after a while it drops down to 40-50. So I have noted that if I ALT-TAB out of the sim and back, my FPS return to 60 and no stutters!
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Same thing happened to me yesterday. Done about 80 flight hours in 4.33 and it’s the first time it happened. Take-off and ingress were fine (around 60FPS), then suddenly BAM … slideshow mode until I landed and exited.
2-ship MP flight with me hosting. My wingie didn’t notice anything on his end.
x64
Theater: Balkans for 4.33
System specs in sig. -
I’ve recently performed a complete clean install of my system. It worked okay after that. Did some multiplayer mission with someone. Worked fine for a while, until it crashed. Now BMS won’t start (CTD on startup) .
I’m giving up. Might be hardware related after all… I’m going to save up for a few months and upgrade my system… :<
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I experince the same problem since 4.33 installation. However, it seems it depends on capaign/theatre (how many units in the air and on the ground) and probably hard disc access. Disc not swapping (16GB RAM total, 9GB RAM free). Processor (Intel quad core 3.1 GHz) working on 70 - 80% power, but during stutters it peaks up to 100%. Stutter lasts from 1 - 3 seconds and FPS drop to unbearable 2 - 6 FPS.
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16 GB of ram and only 9 GB free? What’s the other 7 GB being used for?
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Aaaand it’s working again… Upgraded to Windows 10, BMS still did not run (CTD). Reinstalled BMS and now it’s working fine o_0 (for the moment )
I’ll let you guys know if it fails again ^^
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I have just ordered me a X55 :).
Only thing I am gutted about is the performance :(.
My rig aint the issue but I have tweaked the hell out of BMS and get about 50FPS in the air on the ground I get about 30 but when I enable the tgp on the ground I get 20
The tgp is a killer man
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I got the same sudden FPS drop the OP wrote about.
Very odd. I already flew several times with my new rig (which I’ve bought because the previous one was not good at running the new 4.33 with decent fps). Very pleasant : nice fps, everything went smoothly. And then during a campaign mission the fps suddenly dropped to the teens. I flew away from the FLOT, but it improved fps only very marginally (to 20/25 at best). I also paused the game, but to no results. Very odd.
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Same here. Double Alt+Tab is the solution for the time being.
I missed that thread here, seems I didn’t look back far enough in time.
System:
AMD Athlon X4 760K @3.8Ghz
8Gb RAM
Samsung 840 evo SSD
AMD Radeon R9 270X OC with 2Gb DDR5
Win 7 Home PremiumI am now pretty sure the GPU is causing the issue because the CPU load does not change with ALT-TAB but the GPU will enter the “2D- Mode” without acceleration and back into the sim it starts in “3D- Mode” again with a higher clock than it uses on the desktop.
Anything I can contribute to the solution of this?Maybe the -mono log helps…
It happened about the time when our flight dropped the first LGB, search for the string “Paveway”.
Interesting thing is shortly after that:
ERROR: PrepareSectorsForRendering(view 1): Sector 23 39 ref 0 not loaded!
ERROR: PrepareSectorsForRendering(view 1): Sector 24 39 ref 0 not loaded!
ERROR: PrepareSectorsForRendering(view 1): Sector 25 39 ref 0 not loaded!
ERROR: PrepareSectorsForRendering(view 1): Sector 26 39 ref 0 not loaded!
ERROR: PrepareSectorsForRendering(view 1): Sector 27 39 ref 0 not loaded!
ERROR: PrepareSectorsForRendering(view 1): Sector 28 39 ref 0 not loaded!
ERROR: PrepareSectorsForRendering(view 1): Sector 29 39 ref 0 not loaded!
ERROR: PrepareSectorsForRendering(view 1): Sector 30 39 ref 0 not loaded!
ERROR: PrepareSectorsForRendering(view 1): Sector 31 39 ref 0 not loaded!
ERROR: PrepareSectorsForRendering(view 1): Sector 23 40 ref 0 not loaded!This is also the only appearance of the string “ERROR” in the whole file.
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Monoprint are useful only for the coder who put it in there, thus dont mind the word choice too much
But it sure is unusual.
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These monoprints means that a terrain sector failed to load (From file), if it’s just a temporary message and you saw terrain OK in 3D world, then maybe just some glitch in your system.
Sudden drastic FPS drops might be your V-Card started swapping memory (As VRAM became full) and that is known to be a VERY slow operation (GPUs are not optimized to read back memory from the system).
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Terrain was OK all the way.
It was not drastic but decreased slowly more and more. But I think it’s the right direction since VRAM clears once you leave the 3D and go back to desktop so VRAM is empty again when pressing ALT-TAB back into the sim again.
I just do not have any solution for it -
One more thing: I always have an Open Broadcast Service (OBS) Session open in the background. I started recording which records to my HDD (BMS is on the SSD) and I had no FPS drop at all which means the CPU isn’t the problem.
I disabled the HiRes Textures and we’ll try again. I think the VRAM thing might be the solution.
Thanks for the help so far!
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If I could help I saw that fps drop(in 3d) when a pop up like 1st lieutnant appear at the end of the mission…don’t know why ,in 4.32 my fps drop(in 3d) when there is a message from the intell(with movie) at the end of mission.
After it works ok.And when it appear after 10 mission the fps drop again.