GPU/CPU Utilization

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dvojinov
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GPU/CPU Utilization

#1 Post by dvojinov » 28 Jul 2021 08:09

I'm really amazed how this game cant properly utilities the PC resources and I wonder why ?? What is the limitation here ? Game engine it self or what ?
I wonder what is driving the game with this low resource utilization and of course result is crawling FPS , I really would like to get an normal explanation someone from SCS if possible but who ever have an idea please enlighten me .
system Ryzen 9 3950X + X570+ 32GB 3600 + RTX3090 + Samsyng G7
and btw , Vsync is OF , GSYNC is ON in game VSYNC is OFF , and I do get in some scenes 230+FPS but mostly it linger around 110-120 with dips this low however when ever FPS dips this low the RESORCES are low as well so ..why ????
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plykkegaard
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Re: GPU/CPU Utilization

#2 Post by plykkegaard » 28 Jul 2021 17:12

The game does not support multi core very well
If you are running 11% CPU utilization overall, you have two cores in use close to 100% each

Your Ryzen 9 3950X should be ok as it has fairly good clock speed

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bobgrey1997
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Re: GPU/CPU Utilization

#3 Post by bobgrey1997 » 28 Jul 2021 17:25

People complaining about 110FPS instead of 230.
110 is NOT "crawling". In fact, there is no perceivable difference.
Most people can't perceive anything over 60-80, and I've never heard of anyone being able to perceive over 120.

[Edit]
I see the complaint is actually regarding the FPS noted in the screenshot (around 60). There might be some perceivable difference between that and the normal 110, but not much. 60 is still a smooth rate.
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xXCARL1992Xx
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Re: GPU/CPU Utilization

#4 Post by xXCARL1992Xx » 28 Jul 2021 17:28

you can see the difference, but everything higher then 120 is only input lag that is reduced, a game like ETS and ATS are fine with 60 to 120fps, everything over it is overkill anything below it is playing Tetris
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dvojinov
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Re: GPU/CPU Utilization

#5 Post by dvojinov » 28 Jul 2021 20:58

Fine lets say 60 is OK for min fps , I might agree on that but I don't really like it however why is the RTX3090 at 48% this is not the only case it happens throughout the game ??? and I clearly can see the difference when it is on 89 , 95% or this pitiful 48% the framerate is just fine , then this exact scene, nothing much there anyway, almost empty highway still fps is low . Lets say the same scene with 95% GPU utilization should be around 120FPS ,and basically this game doesn't run anything faster or better then from my previous 2080Ti and 3080 for ETS it doesn't matter , like some performance limit is reached . BTW the game runs on 4th Gen SSD so no way it can be any problem with loading .
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plykkegaard
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Re: GPU/CPU Utilization

#6 Post by plykkegaard » 28 Jul 2021 21:22

The main part of the game runs on one single core, this is your bottleneck

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Some newbie driver
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Re: GPU/CPU Utilization

#7 Post by Some newbie driver » 28 Jul 2021 22:15

@dvojinov computers work in a lot more complicated ways than those simple direct maths.

Your CPU has 16 cores 32 SMT execution threads. This game only uses 1 plus partially another; less than 1/16 of the total (around 6%) and that's not going to change until SCS does a LOT of fundamental changes to the game that require years to be completed (2 years already they had been doing changes and still not there). The rest of your system and any other program you can have in the background is consuming the rest until that 11%.

In fact, most of the games out there, even lots of the triple-A, aren't going to cope 100% of that CPU. Your CPU isn't meant for gaming, or not only for that. It's total raw power is used and usefull in other kind of tasks that have nothing to do with FPS in a video game. If you don't do any other of those tasks a good advise would had been to save money purchasing a more rational CPU gaming-wise.

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Jacksonshaulage1
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Re: GPU/CPU Utilization

#8 Post by Jacksonshaulage1 » 28 Jul 2021 23:24

my gpu utilization drops 64% then back up to 99 and cpu only at 5 to 10%
i get 130fps drops to 64fps
samsung g7 32 and rtx 3070
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dvojinov
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Re: GPU/CPU Utilization

#9 Post by dvojinov » 29 Jul 2021 07:48

Some newbie driver wrote: 28 Jul 2021 22:15 @dvojinov computers work in a lot more complicated ways than those simple direct maths.

Your CPU has 16 cores 32 SMT execution threads. This game only uses 1 plus partially another; less than 1/16 of the total (around 6%) and that's not going to change until SCS does a LOT of fundamental changes to the game that require years to be completed (2 years already they had been doing changes and still not there). The rest of your system and any other program you can have in the background is consuming the rest until that 11%.

In fact, most of the games out there, even lots of the triple-A, aren't going to cope 100% of that CPU. Your CPU isn't meant for gaming, or not only for that. It's total raw power is used and usefull in other kind of tasks that have nothing to do with FPS in a video game. If you don't do any other of those tasks a good advise would had been to save money purchasing a more rational CPU gaming-wise.

Regards
I'm pretty aware of my CPU but even limiting the CPU in cores doesn't change anything even if it runs 4.5Gz nothing to do with that , in fact I get better results with all 16/32T enabled throughout every game so that s definitely not the "bottleneck" I have second machine on I 7 9700K +RTX 3080 which runs 5.2Ghz and there is no better performance there either even if I swap the 3080 for 3090 that is in my primary AMD machine so NO, CPU is not the problem that's is what I try to say the game just doesn't perform better when some max hardware criteria is reached it performs mostly the same regardless of the hardware , AMD , INTEL , 16/32 CPU or 8/8 core CPU 2080 Ti , 3080 or 3090 for ETS it has no impact at all . SO I guess it is just bad engine or maybe not bad but outdated engine that cant utilities modern hardware resources .
Anyway thanks for your opinion and insights , appreciated !
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dvojinov
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Re: GPU/CPU Utilization

#10 Post by dvojinov » 29 Jul 2021 07:58

Jacksonshaulage1 wrote: 28 Jul 2021 23:24 my gpu utilization drops 64% then back up to 99 and cpu only at 5 to 10%
i get 130fps drops to 64fps
samsung g7 32 and rtx 3070
yah! that's somethin what I have mostly it hovers around 110-130 fps with drops to 65 although I saw 57 at some point on both machines I have AMD and Intel and again my theory seems to be correct the game don't give a damn about hardware and how powerful it is you and me have obviously the same overall performance maybe my max FPS is higher at some point but that's not real . It is the min FPS that bothers me and it is mostly in cities specially when raining . In cites I usually see 57-85 FPS .
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