Game optimization/GPU use

[Hartigan]

Hi! 

I have a curious question about game performance. I use Msi Afterburner to see how my rig performs in game. i5 7600K 4.8 Ghz, 16 Gb 3000mZh memory and GTX 1070 8 GB.  Monitor is 144Hz G-Sync. Normally i can see like 88-141 fps (fps limiter 141) and GPU usage 98 -100% . Everything is smooth and game feels well optimize even with lot of planes around.

However in some cases like Jade´s tank busting mission where task is to destroy huge tank columns with BF 110 g-2, i can see lower GPU usage when mostly needed. When looking to the sky my fps jumps to around 120- 141 and GPU usage rises, but when i start attack run and all tanks appears to the sight, GPU usage goes somewhere 60-80 % and FPS goes around 65-80. 

CPU usage stays always 25-60% and temps CPU 40-63 celsius  & GPU 50-70 celsius . So temperature should not be issue. Is this pure optimization effect? I have seen this in other games too . 

 

Cheers! 

[SAS_Storebror]

3 hours ago, Hartigan said:

CPU usage stays always 25-60%

 

25% CPU usage on a 4-core CPU means that 1 core is probably almost at it's limit while the others are mostly idle.

60% is a whole lot of CPU usage, I've never ever seen that happening on my 4-core CPU with IL-2.

Either case, it sounds like the FPS limit is caused by a CPU bottleneck on a single thread and that's why you get both lower FPS and lower GPU usage at the same time.

 

Mike

[PhoenixCNE]

You will generally start to see lower gpu usage like that when the cpu is being bottlenecked and not getting instuction to the GPU as fast.  Not sure what storebror is meaning fully but I agree with the cpu bottleneck.  I know both my cpu (3570k OCd to 4.8) and gpu pretty much stay pegged at 100% MOST of the time while playing but give me a good smooth framerate.

Edited November 21, 2018 by PhoenixCNE

[LizLemon]

Some users have claimed a FPS increase if they uninstall and reinstall the game. It sounds weird but there may be a cache that get cleaned out when they do it.

[1PL-Husar-1Esk]

Cache make things run faster, only if not loaded to point of no use but just expending resources.