[Cairo] X server CPU Load problem

[Soorya Kuloor]

Hi Carl,

Just some more info. If you increase the number of draws, i.e. frequent
redraws or more shapes (with larger window size or something like that)
the problem seems to happen a bit more frequently.

Thanks,
-- Soorya

On Thu, 2003-08-28 at 07:41, Carl Worth wrote:
> On Aug 27, Soorya Kuloor wrote:
>  > Initially when I run the program, the CPU usage by X server is
>  > reasonable (20-25%). However, after a while (0.5-1.5 hours), all of a
>  > sudden, the X server starts consuming 95-98% of the CPU and redraw's
>  > take around 30-40seconds (200ms under normal circumstances).
> 
> I've reproduced the bug on my machine. After running for about 1.5
> hours with 400-600 ms redraws I see a sudden jump to redraws of about
> 2 minutes:
> 
> 	Wed Aug 27 18:02:58 2003
> 	: Clip: 0, 0, 1024, 850, Time: 545.469000
> 	Wed Aug 27 18:02:59 2003
> 	: Clip: 0, 0, 1024, 850, Time: 543.026000
> 	Wed Aug 27 18:04:04 2003
> 	: Clip: 0, 0, 1024, 850, Time: 64695.152000
> 	Wed Aug 27 18:06:13 2003
> 	: Clip: 0, 0, 1024, 850, Time: 127147.366000
> 	Wed Aug 27 18:08:19 2003
> 	: Clip: 0, 0, 1024, 850, Time: 125105.065000
> 
> This is with the ati driver from XFree86 4.3.0 built from CVS on my
> Debian machine.
> 
>  > Has anybody seen this before? Any clues as to why this may happen?
> 
> I don't have any theories. I'll try running this test case with the
> kdrive server. If the bug shows up there it will probably be easier to
> track it down.
> 
> -Carl
> 
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