[Cairo] X server CPU Load problem
skuloor at verano.com
Thu Aug 28 08:45:51 PDT 2003
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.
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.
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