Re: [Pharo-users] Slower

[Hilaire]

Le 05/04/2018 à 16:09, Henrik Sperre Johansen a écrit :

DRGEO:

20.9% {27116ms} DrGPointMorph>>drawOnAthensCanvas:
    |16.7% {21720ms} AthensCairoCanvas(AthensCanvas)>>createPath:
Storing the path in DrGPointMorph, rather than recreating for each draw:,
should save alot of time.

Indeed should work nicely for point with round shape. For rectangle 
shape it is not necessary, this what I did in the demo.
7.7% {9962ms} DrGTextMorph>>drawOnAthensCanvas:
   | 7.7% {9962ms} Form>>asAthensPaintOn:
Same thing here, only storing the paint, rather than converting from form
each draw.
In my demo, the text changes at each iteration. Useful for static 
geometric item label thought. But I already optimized this by discarding 
empty label

The cache suggestions will be find for static surface, it does not apply 
always though.
In the scenario where Dr.Geo is used for animated demonstration, I 
already found a few optimization for Dr.Geo itself without touching to 
the Athens layer.

Thanks for your review

Hilaire

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Dr. Geo
http://drgeo.eu