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Why Does The Game Use Less Gpu In 12V12 Than 4V4?


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#1 dario03

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Posted 10 September 2017 - 07:18 AM

Or is it just me?

Basically I get really low gpu usage and thus lower framerates in 12v12 modes (both qp and fp) than I do scouting or lobbies with less mechs. Cpu usage is never near maxed in any mode on any core. No where near heat throttling on gpu/cpu.

Sometimes its fine but It jumps around a good bit and typically
Invasion and qp I am usually getting 30-45% gpu usage and ~50fps
Scouting and lobbies with lower mech counts are 60-80% gpu usage and ~130fps.

Anybody else getting the same issue?

System:
i7 4770k 4.4ghz, 16GB ram, RX470.

Edited by dario03, 10 September 2017 - 07:43 AM.


#2 Deathlike

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Posted 10 September 2017 - 07:31 AM

I'm not sure, but the lobby tends to be rendering a lot of other stuff (especially if you're doing FP/CW) like the FP/CW map.. so, I dunno. It's just easier to force the profile for this game on your video card to go full blast on performance.

Otherwise, it's just PGI's magical code being magical.

#3 Black Fish

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Posted 10 September 2017 - 10:16 AM

MWO use mostly CPU rather than GPU, as sad as it is... not an expert on the subject but this is what I've always heard

#4 dario03

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Posted 10 September 2017 - 01:42 PM

View PostBlack Fish, on 10 September 2017 - 10:16 AM, said:

MWO use mostly CPU rather than GPU, as sad as it is... not an expert on the subject but this is what I've always heard


But the cpu is only ever around 50% on any core. So that isn't getting used either.

#5 jss78

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Posted 10 September 2017 - 02:09 PM

I've got significantly lower FPS in FW Invasion compared to QP. No idea why.

Sometimes I wonder what modern games would look like if they used the available hardware as efficiently as old C-64/Amiga games. People say MWO is CPU heavy, and when you check it uses 25% of your CPU if you're lucky.

Edited by jss78, 10 September 2017 - 02:10 PM.


#6 The Lighthouse

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Posted 10 September 2017 - 02:54 PM

View Postdario03, on 10 September 2017 - 07:18 AM, said:

Or is it just me?

Basically I get really low gpu usage and thus lower framerates in 12v12 modes (both qp and fp) than I do scouting or lobbies with less mechs. Cpu usage is never near maxed in any mode on any core. No where near heat throttling on gpu/cpu.

Sometimes its fine but It jumps around a good bit and typically
Invasion and qp I am usually getting 30-45% gpu usage and ~50fps
Scouting and lobbies with lower mech counts are 60-80% gpu usage and ~130fps.

Anybody else getting the same issue?

System:
i7 4770k 4.4ghz, 16GB ram, RX470.


So this is how it works.

CPU feeds information to GPU so that GPU can create 3D graphic for you.

With 4v4, there is little CPU's work, so CPU finishes job quickly and gives information to GPU, so GPU works hard.

With 12v12, there is tons of works to do by CPU, so CPU finishes job very slowly, suddenly GPU finds itself tons of free time.

#7 Jackal Noble

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Posted 10 September 2017 - 03:02 PM

View PostThe Lighthouse, on 10 September 2017 - 02:54 PM, said:


So this is how it works.

CPU feeds information to GPU so that GPU can create 3D graphic for you.

With 4v4, there is little CPU's work, so CPU finishes job quickly and gives information to GPU, so GPU works hard.

With 12v12, there is tons of works to do by CPU, so CPU finishes job very slowly, suddenly GPU finds itself tons of free time.


Erwhat?!

#8 dario03

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Posted 10 September 2017 - 03:16 PM

View PostThe Lighthouse, on 10 September 2017 - 02:54 PM, said:


So this is how it works.

CPU feeds information to GPU so that GPU can create 3D graphic for you.

With 4v4, there is little CPU's work, so CPU finishes job quickly and gives information to GPU, so GPU works hard.

With 12v12, there is tons of works to do by CPU, so CPU finishes job very slowly, suddenly GPU finds itself tons of free time.


Yeah, but my cpu is only ever hitting ~50%. Even when the game is working good and I'm getting ~90fps in a 12v12 the cpu stays about the same but the gpu usage shoots up.
I could understand if my cpu was slow and thus a bottleneck, but its not.

#9 Tier5 Kerensky

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Posted 10 September 2017 - 03:53 PM

View PostBlack Fish, on 10 September 2017 - 10:16 AM, said:

MWO use mostly CPU rather than GPU, as sad as it is... not an expert on the subject but this is what I've always heard

Yes, this is why. With most ordinary setups the game runs limited by CPU, so in 4 vs 4 the limit is higher, and thus GPU is able to work more.


The game won't use 4 cores so total CPU utilization doesn't mean a thing.

Edited by Teer Kerensky, 10 September 2017 - 04:12 PM.


#10 dario03

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Posted 10 September 2017 - 04:46 PM

View PostTeer Kerensky, on 10 September 2017 - 03:53 PM, said:

Yes, this is why. With most ordinary setups the game runs limited by CPU, so in 4 vs 4 the limit is higher, and thus GPU is able to work more.


The game won't use 4 cores so total CPU utilization doesn't mean a thing.


Yeah but per core utilization should. And no core is ever close to max.

#11 Anjian

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Posted 10 September 2017 - 06:14 PM

It only means that during 12 v 12, graphics is scaled down quite a bit. Game engine scales down models if there is plenty, or if the models are meant to appear distant or far from the player's perspective. When you are looking at a mech at 100 meters, then at 500 meters, they are not using the same models, the one at the distance is much more scaled down in terms of textures and polygons.

Sniping will likely take much less GPU and CPU power than brawling.

#12 dario03

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Posted 10 September 2017 - 06:24 PM

View PostAnjian, on 10 September 2017 - 06:14 PM, said:

It only means that during 12 v 12, graphics is scaled down quite a bit. Game engine scales down models if there is plenty, or if the models are meant to appear distant or far from the player's perspective. When you are looking at a mech at 100 meters, then at 500 meters, they are not using the same models, the one at the distance is much more scaled down in terms of textures and polygons.

Sniping will likely take much less GPU and CPU power than brawling.


Okay but why do I sometimes get ~70% gpu usage and ~90fps and other times it drops to ~30% usage and ~40fps? And there doesn't appear to be a clear trigger for it. Sometimes it runs fine in a brawl other times it drops to a crawl and sometimes it drops to a crawl when nothing is happening.
I understand scaling down things to save on processing power but part of that is supposed to be for maintaining fps. So dropping gpu usage to 30% when its only pushing ~40fps doesn't seem right.

#13 MadRover

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Posted 10 September 2017 - 07:03 PM

because PGI wont invest in upgrading the game engine. Notice how every game that came out after 2015 looks good compared to this one graphically. Not that i am claiming to be an expert or anything on this subject.

#14 Anjian

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Posted 10 September 2017 - 09:22 PM

View Postdario03, on 10 September 2017 - 06:24 PM, said:


Okay but why do I sometimes get ~70% gpu usage and ~90fps and other times it drops to ~30% usage and ~40fps? And there doesn't appear to be a clear trigger for it. Sometimes it runs fine in a brawl other times it drops to a crawl and sometimes it drops to a crawl when nothing is happening.
I understand scaling down things to save on processing power but part of that is supposed to be for maintaining fps. So dropping gpu usage to 30% when its only pushing ~40fps doesn't seem right.



Can't say if the game engine is working correctly.

The special effects would also matter, as well as the polygon count and texture sizes of your immediate terrain.

#15 Methanoid

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Posted 10 September 2017 - 11:35 PM

cryengine3 is all about the cpu, it barely touches the gpu, also theres been pathetic few attempts at optimising/improving the gfx engine, if its not a simple model insertion/mech pack or out of combat ui change, your out of luck.

Pray that when MW5 inevitably doesnt do so well that they at least spend time converting mwo into mw5's unreal engine.

theres not even been a mention of improving the old cryengine3 to a more current cryengine nevermind a big leap to unreal.

Edited by Methanoid, 10 September 2017 - 11:37 PM.


#16 Paigan

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Posted 11 September 2017 - 12:35 AM

It also spike to 100% GPU in the score screen, in the drop-prep screen and when spectating others.
There must be some kind of ultra-noobish infinite loop in the code talking to the GPU basically everywhere except in the primary ingame mode and the Mechbay.

Edited by Paigan, 11 September 2017 - 12:38 AM.


#17 kesmai

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Posted 11 September 2017 - 12:42 AM

The code for those pylons is an atrocity. You see the same effect on escort compared to other game modes.



Kek

#18 MW Waldorf Statler

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Posted 11 September 2017 - 02:29 AM

View PostMadRover, on 10 September 2017 - 07:03 PM, said:

because PGI wont invest in upgrading the game engine. Notice how every game that came out after 2015 looks good compared to this one graphically. Not that i am claiming to be an expert or anything on this subject.

;-) Which games ?Ark Survival of the UE4 ? MWO looks better in all Aspects...No Mans Sky ?..Battlefield 1,used Frostbite 3 very different Engines as Cry or UE ,War Thunder used is own Engine, Fallout 4 is Singleplayer...and the most Games have clientbased Calculations against MWOs serverbased Calculations

Edited by Old MW4 Ranger, 11 September 2017 - 02:29 AM.


#19 Arnie1808

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Posted 11 September 2017 - 02:53 AM

One thing I have noticed about the graphics is how badly it seems to kinda artifact like when a gpu fails but its mostly in the distant landscape especially ifs it's frozen city or even worse polar highlands the ice face glitches like hell on my pic I thought my card was on it's way out at first it was that bad.

#20 MadRover

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Posted 11 September 2017 - 06:54 AM

View PostOld MW4 Ranger, on 11 September 2017 - 02:29 AM, said:

;-) Which games ?Ark Survival of the UE4 ? MWO looks better in all Aspects...No Mans Sky ?..Battlefield 1,used Frostbite 3 very different Engines as Cry or UE ,War Thunder used is own Engine, Fallout 4 is Singleplayer...and the most Games have clientbased Calculations against MWOs serverbased Calculations


My point exactly. There all modernized. Well except maybe FO4. That one is like you said single player. I'm just pushing for an upgraded game engine to at least 2015 standards.





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