FPS drop, then ALT+TAB, back again, FPS are up again

[TobiasA]

Hey folks,

maybe you can help me with some headache. We flew a campaign with 4 guys online using LGB’s and the TGP today.
After about 45 minutes, FPS dropped below 15FPS. Usually, I have 25+ on my rig- most of the time around 40. I used the TGP for about 20 minutes by then.
During my way home, it dropped even more to 10 FPS and lower, mainly when looking down into the pit.
After touchdown (which was scary as hell with 9FPS) I ALT+TAB’ed to see if it was my CPU, opened the process monitor and ALT-TAB’ed into BMS again. All of a sudden, I had 39 fps instead of the 9 I had before…? BMS worked like a charm again.

Did anyone else notice such things? It is the first time I encountered it…

My System:
AMD Athlon X4 760K @3.8Ghz
8Gb RAM
Samsung 840 evo SSD
AMD Radeon R9 270X OC with 2Gb DDR5

I have never encountered it before and I have never seen such a thing in any other game (like armored warfare for example). I ran BMS with -mono and -nomovie, 64bit edition. Operating system is Win7 home premium, 64bit.

Thanks for any feedback

Regards, Tobias

Edit: I’m running it in full-screen mode, I think that is important.

[raven6]

I’ve read and heard that on our forums also.
I’ll find it and see if there was any outcome and let you know.

[Arty]

This is reported another time.

[Kolbe-49th]

I don’t know if these threads are of great help, but anyway:

See here, here & here.

@R6: Happy New Year bud. Hope you’re well.

[TobiasA]

Well, I looked through the forums and could find a lot of people complaining about a general FPS drop after 20 Minutes. Maybe I used the wrong keywords…

Anyway, I’ll contribute to the other threads. Thanks a lot for your help.

[TobiasA]

I added the -mono output there:
https://www.benchmarksims.org/forum/showthread.php?24179-Massive-sudden-drop-of-framerate&p=358089#post358089