Alright, here is what i came up with. i ran all the tests on a 1024x768
monitor with the squeak window maximised (but not in full screen mode). the
three numbers for each test are for a screen depth of 8, 16, and 32
respectively. i tested 8bit depth because that is what i normally use and
that is what i've run all the FreeCell tests under. the OS display is set
to 32 bits ("True Color").

====Squeak 2.7-1782
"Raw #forceToScreen speed"  14231  17405   6209
"Raw BitBlt speed"           1593   3155   6229
"Raw Balloon speed"         34079  27319   7721

====Squeak 2.9a-2773
"Raw #forceToScreen speed"  14131  17295   6189
"Raw BitBlt speed"           2023   3815   7571
"Raw Balloon speed"         43102  37353  13359

so, it looks like Balloon's speed has taken a hit since 2.7 ...

david

At 09:15 PM 10/5/00 -0700, you wrote:
>David,
>
>Something smells wrong here. Can you do me a favour and check what the
>difference in speed for you is when you run:
>
>"Raw #forceToScreen speed"
>	[1 to: 100 do:[:i| Display forceToScreen]] timeToRun.
>
>"Raw BitBlt speed"
>	[Display deferUpdates: true.
>	1 to: 100 do:[:i| (FormCanvas on: Display) fillColor: Color blue].
>	Display deferUpdates: false] timeToRun.
>
>"Raw Balloon speed"
>	[Display deferUpdates: true.
>	1 to: 100 do:[:i| 
>		(BalloonCanvas on: Display) 
>			drawRectangle: Display boundingBox 
>			color: Color red 
>			borderWidth: 0 
>			borderColor: nil].
>	Display deferUpdates: false] timeToRun.
>
>On my machine (400Mhz PII at 1024x768x16) the above gives:
>Display		#forceToScreen	BitBlt	Balloon
>1024x768x16 	4367			1323		10362
>1024x768x32 	3318			2449		3884
>
>The difference in speed between 16/32 bit Balloon drawing is due to the
>dithering taking place in 16bit. Beautiful but a little expensive ;-)
>
>[Note to Bob: Could you run the above on your G3 for reference?!]
>
>  - Andreas
>
>
--
David Farber
dfarber at numenor.com