On Thu, Aug 18, 2005 at 02:40:40PM -0700, John M McIntosh wrote:
> Now a major complaint over the years is that os-x quartz drawing is  
> slow as compared to os-9, this is show in your numbers of 7.8 versus 6.5
> Apple's response is that Quartz extreme will address those problems,  
> or you should use Open/GL for drawing.

I'm running 10.4.2 on a 12" Powerbook, and I see a much bigger
performance degradation than that.  For that same Hilbert code, I get
about a factor of 3 slow down from 3.8.8b2 to 3.8.8b11 (750ms to
2500ms).  I see artifacts in normal operation, too, probably to most
noticeable being slow updates in menus (Morphic): As I move the cursor
from one menu item to the next, the old item remains highlighted for a
noticeabe lengthe of time after the new one is highlighted, giving a
very sluggish feel.

I know this is supposed to avoid some throttling issue with the old
update logic in 10.4, but I haven't noticed any problems with that.
Under what circumstances did it cause a problem?

-Jesse