What version are you using? In Pharo 3 it just checks the identity, species, and then accesses some inst vars. What objects are instantiated? Esteban A. Maringolo wrote
I'm grouping by date a resultset coming from the database, it cointains around 2000 dated objects.
It is: myObject groupBy: #date.
But turn's out that DateAndTime #= comparison is elegant object-wise but not performance-wise. Because it instantiates several other objects along the way.
This is in the milliseconds range, but in the agregate of a couple of thousand of objects, it creates a lot of not-simple-objects (it is, not integers), and maybe because of that it isn't as fast as I'd expect.
Did somebody experienced this too?
Regards,
Esteban A. Maringolo
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