Igor

:)
do you have some code so that we make progress on that side.


On Feb 7, 2009, at 8:23 PM, Igor Stasenko wrote:

> 2009/2/7 Ramon Leon <[email protected]>:
>>> The biggest concern I have right now is speed.  I'm not
>>> saying Pharo is too slow; I'm simply admitting that I do not
>>> know whether it is fast enough for some of the things I want to do.
>>
>> +10 to this.
>>
>> The UI is looking really great lately, but overall the experience  
>> is it's
>> just too slow.  Cracking open a raw squeak base image reminds me  
>> how snappy
>> the UI used to be.  Not really complaining, it's totally bearable,  
>> but it'd
>> sure be nice if the pretty UI was quick and snappy, and you are  
>> asking.
>>
> Sure thing
> MessageTally spyOn:[self fullDrawOn: World assuredCanvas]  "where self
> is an OB system window morph"
>
> 16.7% {10ms} BalloonEngine>>copyLoopFaster
> 11.7% {7ms} SimpleBorder>>frameRectangle:on:
> 6.7% {4ms} Array(SequenceableCollection)>>select:
> 5.0% {3ms} ByteString(String)>>=
> 5.0% {3ms} SmallInteger(Number)>>to:by:do:
> 5.0% {3ms}  
> GrafPort(BitBlt)>>primDisplayString:from:to:map:xTable:kern:
> 5.0% {3ms} BorderStyle>>frameRectangle:on:
> 3.3% {2ms} ByteSymbol>>species
> 3.3% {2ms} ByteString class(String class)>>new:
>
> total 61ms.
>
> some hot points crying to be optimized:
>  cache the OBMonticelloPackageNode>>classCategories , which get
> rebuilt each time you draw the window.
> this can make following numbers much smaller:
> 5.0% {3ms} ByteString(String)>>=
> 6.7% {4ms} Array(SequenceableCollection)>>select:
> 3.3% {2ms} ByteString class(String class)>>new:
>
> Making SystemWindow>>drawDropShadowOn: to do nothing makes a  
> difference:
>
> [10 timesRepeat: [self fullDrawOn: World assuredCanvas ]] timeToRun
> with shadows:    530
> without:  473
> ~ 10% speedup
>
> Changing the theme makes some difference (no shadows/with shadows):
> - Watery 2:  50/60 ms
> - Standard Squeak: 38/43 ms
> - Soft Squeak: 46/55 ms
> - Vistary: 56/62ms
> (keep in mind these numbers are polluted with messageTally)
>
> As to me, the theme variancy is quite acceptable - a most complex
> theme (with transulency) is drawn just 50% slower than most simple
> one.
>
> As for,
> 3.3% {2ms} ByteString class(String class)>>new:
>
> Total count of ByteString>>new: calls during
>  GlobalCounter reset.
>  self fullDrawOn: World assuredCanvas.
>  GlobalCounter counters copy inspect
>
> is 7146,
> which again makes me look suspicious at OB here.. Hey! Are we drawing,
> or processing a text?!?!
>
>
>> Ramon Leon
>> http://onsmalltalk.com
>>
>>
>> _______________________________________________
>> Pharo-project mailing list
>> [email protected]
>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>
>
> -- 
> Best regards,
> Igor Stasenko AKA sig.
>
> _______________________________________________
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