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GPU Usage: WHY YOU NO STAY STEADY?! - Page 4

post #31 of 54
Quote:
Originally Posted by kiwiasian;13329230 
What is that program supposed to do?
It just shows me this

It checks your latency or how easy it is for you system to do interrupts and respond to stuff. Yours looks good for a windows 7 system. Show your task manager.
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post #32 of 54
Quote:
Originally Posted by kiwiasian View Post
What is that program supposed to do?
It just shows me this
Well... that is about 10x better than mine So you are doing it right. I am stuck in the 500 range

Steady & stable is what you want, sub 1000 us.

This is a very good/clean setup.
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post #33 of 54
Quote:
Originally Posted by Hephasteus View Post
It checks your latency or how easy it is for you system to do interrupts and respond to stuff. Yours looks good for a windows 7 system. Show your task manager.


I know, I've got a lot of crap running.

Quote:
Originally Posted by RagingCain View Post
Well... that is about 10x better than mine So you are doing it right. I am stuck in the 500 range

Steady & stable is what you want, sub 1000 us.

This is a very good/clean setup.
Oh, well, uh, thank you.
I don't really even know what it's checking though lol.
post #34 of 54
And this is why you use XP and why overclock fsb on amd systems instead of just overclock by the cpu multiplier.
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post #35 of 54
Quote:
Originally Posted by kiwiasian View Post
I know, I've got a lot of crap running.

Oh, well, uh, thank you.
I don't really even know what it's checking though lol.
No problems. Still looks good. Good clean install.
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post #36 of 54
Stutter issues can be caused by very high DPC latency issues. DPC latency issues are caused by drivers and software that poll the CPU way too much. Asus Probe and Gigabyte EasyTune can cause high DPC latency. A lot of people have problems with GTX 460's and DPC latency. It depends upon your config.
post #37 of 54
Quote:
Originally Posted by Kaldari View Post
The CPU is never hitting 100%, while the GPU is. If anything is a bottleneck, it's the GPU, but only by a very small amount.

Occasional stutters can be caused by any number of things. If they happen at random times during otherwise high FPS, I don't see how it could be a bottleneck causing it.
A common misperception ... you can still have a cpu bottleneck w/o the CPU hitting 100%. Quite easily in fact. And they can happen at (seemingly) random times during otherwise high FPS. Every frame your system ever renders is a new opportunity for either the CPU or the GPU (and there's a few other things too ... like latency problems as mentioned above) to act as the limiting factor to performance.

I'm not saying that's 'what it is', but that's 'what it could be'. Is that proc OC'd kv?

Online games though seem inherently very prone to this sort of behavior ... uneven GPU usage, stutters, etc. APB is online, yes? I think you can drive yourself crazy trying to reckon why GPU usage isn't staying maxed ... especially in an online situation.

It seems to me it just ... almost never does ... except on benchies that are specifically designed to do so.

I just chalk it up as one of the many mysteries of the universe ... and move along
Edited by brettjv - 4/30/11 at 8:44am
    
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post #38 of 54
can MSI Afterburner cause latency issues since it constantly polls the GPUs?
I always have that on when i games to monitor VRAM and temperatures and fps. not sure if my game would be better with it off.

OP: please overclock that CPU. AMD quad-core are weak and comparable to intel sandy bridge dual-core. even if CPU usage is not at 100%, it's darn close to it. i examined some of the spikes and it looks like it's 98% or something. remember task manager refresh every second, so the CPU could be at 100% BETWEEN the refreshes so you'll never see it.
Edited by james8 - 4/30/11 at 9:12am
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post #39 of 54
Quote:
Originally Posted by Kvjavs View Post

1- CPU Bottleneck
2- FPS limiter of some sort (IE: Vsync limiting 60 FPS)
3- Bad Drivers (unlikely)

I vote for CPU Bottleneck. A while back my Q9550 @ 3.6 used to Bottleneck my single GTX 470 even though the CPU didn't go over 80% on those games, the CPU still was the limiting factor.

Imo, those problems seem to arise when those games are poorly optimized.

You don't specify what clocks your 955 is running at. So i'll guess it isn't OC'd. Try it.

Quote:
Originally Posted by james8 View Post
can MSI Afterburner cause latency issues since it constantly polls the GPUs?
I always have that on when i games to monitor VRAM and temperatures and fps. not sure if my game would be better with it off.
It can, but it's not a common phenomena.
Edited by ilam3d - 4/30/11 at 9:18am
post #40 of 54
KV, looking at that CPU usage pattern a bit closer, I have a theory.

Can you try the game again, in roughly the same spot (hopefully the server will have a similar load of other players as well), and this time if you could combine all your CPU usage into one graph instead of 4 (in TM under view/cpu history) and post a screenie of that?

I think this game may actually be coded for 3 cores, and is tapping out those 3 on a regular basis. In which case, the combined usage graph would show that you're spending a lot of time right at the 75% usage level.
    
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