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BF3 micro cpu spikes.

post #1 of 29
Thread Starter 
Hi everyone, recently i started notice an issue what i can describe as small cpu spikes, screenshot below.

73

Running High-Mid settings w/o HBAO/MSAA

Since im running a 120hz such spikes is annoying. I was trying different drivers, closing browser after game launched (using IE with 1 BF tab) different console commands like forcerenderaheadlimit 0 or 1 and it still pops up sometimes, like every 5-10 minutes, can happen even if im not performing anything in game. Cpu should be stable, passed a 18hours prime run. Currently running 301.42 nvidia drivers other specs in sig. What you guys think ?
Edited by Exek - 7/9/12 at 3:56am
Black'n'Silent
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Black'n'Silent
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post #2 of 29
What's it measuring, some sort of latency? Is there an associated stutter you can notice while playing or an FPS drop or something?
Not SLi any more
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Not SLi any more
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post #3 of 29
Thread Starter 
It's measuring the time cpu or gpu use to render a frame and u can see the "max" takes 53-63ms and that is the spike, Its noticeable, Im getting a feeling like everything is freezes for this 63ms delay, like a "click" then it's back to smooth again and fps can drops for around 10.
Black'n'Silent
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Black'n'Silent
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post #4 of 29
Had this problem before and it turned out that my processor was running really hot. Think like 80c. Cleaned out the dust and everything ran smoother again.
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post #5 of 29
Thread Starter 
Mine running at 60c~ tops at 65c at hot days, looks normal.
Black'n'Silent
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Black'n'Silent
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post #6 of 29
Ya thats plenty cool with your CPU. Maybe OC is just a tad unstable?
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post #7 of 29
Thread Starter 
It passed 18 hours prime95 blend with 90% ram usage so im not sure if it's unstable, i can bump voltage a notch more anyway to test that.
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post #8 of 29
About the PM that threadstarter sent me because I had a similar thread months ago http://www.overclock.net/t/1180641/bf3-stutter-for-a-frame-every-second/0_50#post_15877996

No I did not solve the problem, but the slowdown jerk is not noticeable during normal metro+caspian gameplay if I don't use the graph. It could be the graph itself pinging or fetching a command which caused the bottleneck spike.
I fried my old 512mb card so I can't test anything now, cannibalized the gpu fan for cpu heatsink push/pull which reduced a couple degrees (4 celcius or less) in OCCT cpu test.
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post #9 of 29
Same thing, gpu line is flat solid, cpu is spiking occasional, mostly when i want to aim.

Any soultion, i menaged to lower spikes by forcing higher priority, but that is not safe solution.
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post #10 of 29
Have you tried capping the frame rate? To something like 59 or 60 and see how it behaves?
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