Hi I'm not clear.
From: Ian RomanickWhen the card has to draw less pixels, a **larger** percentage of the time is spent sending commands from the CPU to the card.When the window is tiny, the card is drawing fewer pixels, but the CPU has to send the **same** number of commands per frame.
So are you saying Same number of commnds per frame + More pixels gives <= cpu utilization, as compared to Same number of commands per frame + less pixels ? Here my cpu utilization is a dramatic 80% when glxgears is a 3x3 inch window and 4% when glx gears is maximized full-screen at 1280x1024 res. Also when I hide the 3x3" glxgears window behind say my browser window i.e bring another app window to front, and glxgears is no longer visible, cpu utilization remains at 80% or more.
Could you please clarify ? I think you haven't explained everything thats on your mind or know. I think my graphics card GPU is kicking in when I maximize but inactive when minimized, something to do with the way X works. its a hunch ...
Thanks for you effort.
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Rgrds
Hello I've got a intel440bx with a Radeon7500 rv200 chip , running x4.3, on kernel 2.6. System is built from source entirely. One strange thing I noticed is that when I run glxgears in a small window say 2x2 inch, cpu utilization jumps above 70%. But when I maximise the window, cpu utilization drops to 1-2%. I can see this clearly in gkrellm. I thought it should be the reverse. what gives??
I'm running the Radeon in agp2x mode.
Rgrds
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