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BC2 using cpu oddly

post #1 of 12
Thread Starter 
i was monitoring the cpu usage in BC2 on lowest settings and this is how it was using it

CPU1 80%
CPU2 45%
CPU 3 100%

whats the deal with that?




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Edited by philhalo66 - 2/14/11 at 8:51pm
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post #2 of 12
Low settings + low resolution means that your CPU does more work. High settings + high resolution, and then the GPU will start to kick in more and take some of the work load away from the CPU... Seems normal though, especially on a game like BFBC2.
     
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post #3 of 12
Thread Starter 
Quote:
Originally Posted by xxicrimsonixx View Post
Low settings + low resolution means that your CPU does more work. High settings + high resolution, and then the GPU will start to kick in more and take some of the work load away from the CPU... Seems normal though, especially on a game like BFBC2.
its the same on any setting
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post #4 of 12
I get 50-70% on my No1 Core and 95-97% on my No2 Core..

I reckon its just the way the game works
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post #5 of 12
I think (not sure at all) that the last core or thread is always used by the sound engine, I know that on my E8600 and on my QX9650 the last core was pretty much always at 100% usage but if I lowered the sound quality in the ini settings the usage would drop a bit.

Quote:
Originally Posted by xxicrimsonixx View Post
Low settings + low resolution means that your CPU does more work. High settings + high resolution, and then the GPU will start to kick in more and take some of the work load away from the CPU... Seems normal though, especially on a game like BFBC2.
It's not that the GPU takes some of the load it's just that when you use higher settings and resolution most games are usually GPU limited so the CPU doesn't have to render as much frames.

Let's say at everything low your CPU could render 500 FPS but your GPU can only render 400 then your CPU will be roughly at 80% usage, but with everything maxed your GPU can only render 100 then your CPU will only be at 20% usage.
It's not completely exact but you get the idea.
Edited by Telimektar - 2/15/11 at 12:38am
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post #6 of 12
Don't forget that modern CPU's throw around threads between processors.
Also, in a multithreaded environment you're going to have your load spread out more.
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post #7 of 12
Thread Starter 
could this be causing a GPU bottleneck? in the game i struggle for 30 fps even on low.
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post #8 of 12
You are absolutely getting bottlenecked in bc2. I think I've said it before in another thread but your old 9750 would run much better as far as bc2 is concerned. I run bc2 on my old comp which has a 9750 oc'd to 2.88Ghz and a 4830 and it averages 60-70 fps and very rarely dips to mid 40's when abunch of stuff is blowing up. And I run all highest aside from shadows at low and 4aa 16af with a couple of config tweaks.

You might want to try setting RenderAheadLimit=2 to 0 in your config file. That gives me a good 10fps boost on my old comp.

To actually be completely honest outside of games that only utilize 2-3 threads the 9750 would perform better assuming you had it clocked to 2.8-3Ghz.
Edited by scyy - 2/16/11 at 12:54am
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post #9 of 12
Thread Starter 
Quote:
Originally Posted by scyy View Post
You are absolutely getting bottlenecked in bc2. I think I've said it before in another thread but your old 9750 would run much better as far as bc2 is concerned. I run bc2 on my old comp which has a 9750 oc'd to 2.88Ghz and a 4830 and it averages 60-70 fps and very rarely dips to mid 40's when abunch of stuff is blowing up. And I run all highest aside from shadows at low and 4aa 16af with a couple of config tweaks.

You might want to try setting RenderAheadLimit=2 to 0 in your config file. That gives me a good 10fps boost on my old comp.

To actually be completely honest outside of games that only utilize 2-3 threads the 9750 would perform better assuming you had it clocked to 2.8-3Ghz.
so if i sell my current cpu and get a Phenom II 910 and run it at 3.055GHz will that eliminate the bottleneck?
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post #10 of 12
Quote:
Originally Posted by philhalo66 View Post
so if i sell my current cpu and get a Phenom II 910 and run it at 3.055GHz will that eliminate the bottleneck?
You will still get gpu usage spikes in cpu intensive parts like when buildings are falling or near the end of matchs when a bunch of houses are down but overall I would guesstimate you will average 60-80fps with dips to 50 at the lowest. So still a bottleneck but it will be 100% playable.
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