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post #21 of 54
Teichu ... run task manager in background while you play this section. Choose in the settings to graph all CPU usage on one graph rather than perf per thread.

If you are seeing the overall CPU usage pegged at a steady 25% (if you have HT on) or 50% (if you have HT off) during the section in question, this would provide confirmation that you're getting CPU limited. The reason it doesn't have to be 100% is because Crysis/WH are dual-core games.
    
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post #22 of 54
Thread Starter 
Quote:
Originally Posted by brettjv View Post
Teichu ... run task manager in background while you play this section. Choose in the settings to graph all CPU usage on one graph rather than perf per thread.

If you are seeing the overall CPU usage pegged at a steady 25% (if you have HT on) or 50% (if you have HT off) during the section in question, this would provide confirmation that you're getting CPU limited. The reason it doesn't have to be 100% is because Crysis/WH are dual-core games.
i have my ht set off , but when i check task manager i see my cpu usuage is 0?? and i just install metro 2033 it runs totoally fine with my sli setup
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post #23 of 54
Quote:
Originally Posted by teichu View Post
i have my ht set off , but when i check task manager i see my cpu usuage is 0?? and i just install metro 2033 it runs totoally fine with my sli setup
Run the game, playing the troublesome section for a bit w/the task manager running in the background, then alt-tab and check your total (all threads combined) CPU usageon the graph (I believe it's under 'Performance' tab) from the time you were playing. If HT is off, then a steady 50% cpu usage would indicate it's being tapped out.

Metro takes WAAAAAAY less CPU power than Crysis/WH.
Edited by brettjv - 5/10/11 at 5:44pm
    
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post #24 of 54
i believe there will be litttle to no CPU bottleneck because his CPU is an i7 at 4.2 Ghz.
btw this could all be a problem with triple buffering not working if u have vsync on.
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post #25 of 54
Quote:
Originally Posted by james8 View Post
i believe there will be litttle to no CPU bottleneck because his CPU is an i7 at 4.2 Ghz.
btw this could all be a problem with triple buffering not working if u have vsync on.
It may well be not a CPU BN, Sir James.

However, troubleshooting is often a process of elimination. Low GPU Usage very often points to CPU bottleneck (not always, which I've oft-stated on these boards ), so it's a logical thing to look at first, even if it is an i7 at 4.2GHz

BTW, since it was mentioned above: if the problem was downclocking (highly unlikely to begin with) due to the cards not being forced into 'Performance' mode, the FPS would go down, but this would NOT cause GPU usage to go down. If anything, it would go UP if the card was downclocking. Think about that for a minute and you'll figure out why
Edited by brettjv - 5/10/11 at 5:40pm
    
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post #26 of 54
Thread Starter 
Quote:
Originally Posted by brettjv View Post
It may well be not a CPU BN, Sir James.

However, troubleshooting is often a process of elimination. Low GPU Usage very often points to CPU bottleneck (not always, which I've oft-stated on these boards ), so it's a logical thing to look at first, even if it is an i7 at 4.2GHz

BTW, since it was mentioned above: if the problem was downclocking (highly unlikely to begin with) due to the cards not being forced into 'Performance' mode, the FPS would go down, but this would NOT cause GPU usage to go down. If anything, it would go UP if the card was downclocking. Think about that for a minute and you'll figure out why
hi i just check what u said but i see gpu usage sometimes appear to 0~15% after i press alt+tab in game ......... not sure whats this mean ?? by the way should i be setting anything in control panel?? and whats sli rendered mode ? which option should i choose for?
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post #27 of 54
Thread Starter 
Quote:
Originally Posted by james8 View Post
i believe there will be litttle to no CPU bottleneck because his CPU is an i7 at 4.2 Ghz.
btw this could all be a problem with triple buffering not working if u have vsync on.
i never turn on vsync while in game
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post #28 of 54
Quote:
Originally Posted by teichu View Post
hi i just check what u said but i see gpu usage sometimes appear to 0~15% after i press alt+tab in game ......... not sure whats this mean ?? by the way should i be setting anything in control panel?? and whats sli rendered mode ? which option should i choose for?
There is no way that, during the play of the game, you are ever going to be seeing 0% usage. Only 15% is very unlikely as well.

Pay close attention to these instructions

You need to be looking at the CPU Usage History graph under Performance tab, and under View> CPU Usage, you need to set it to "One Graph, All CPU's". Then you play for awhile in the problem section of the game, then you alt-tab back to task manager and look at what your CPU has been running at while you were playing.

And No, don't change anything in control panel ... in fact, hit 'Restore' and put everythign back to defaults if it's not already.
Edited by brettjv - 5/10/11 at 6:05pm
    
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post #29 of 54
Thread Starter 
Quote:
Originally Posted by brettjv View Post
There is no way that, during the play of the game, you are ever going to be seeing 0% usage. Only 15% is very unlikely as well.

Pay close attention to these instructions

You need to be looking at the CPU Usage History graph under Performance tab, and under View> CPU Usage, you need to set it to "One Graph, All CPU's". Then you play for awhile in the problem section of the game, then you alt-tab back to task manager and look at what your CPU has been running at while you were playing.

And No, don't change anything in control panel ... in fact, hit 'Restore' and put everythign back to defaults if it's not already.
hi i did what u said i press view option change "one graphic all cpu ", and i also check the cpu usage history when i press atl+tab at middle of game , but on the left side cpu usage sometimes appear 0 or low percentage and i can see my physical memory usuage , but cpu usage seems cant rise up?? haha by the way sorry to bother u too much
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post #30 of 54
Quote:
Originally Posted by teichu View Post
r u getting 75-85 fps with everything max , including 16qxaa in final misson of crysiswarhead ? thats pretty doubtful

No it does dip there a bit . I just cant believe the performance im getting with my dual lightnings overclocked ON AIR
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