🚀 go-pugleaf

In article <28935@sophia.inria.fr>, kjartan@kurosawa.cica.fr (Kjartan Emilsson)
says:

>How can you estimate the memory usage of an instance of an object in a
>program, beside using NXWriteObject and looking at the file size ? Is it
>the size of the declared instance variables plus method selectors, or are
>there some additional headers ? Are there any limits to the number of

As I understand it, instances are essentially structs, so sizeof
tells you pretty much what you want to know.  Yes, the code for
the methods and the selector tables require some overhead, but they
are not duplicated for each instance.

>I'm thinking of order of magnitudes like about 5000 instances of 500+
>classes/categories.

If you feel comfortable that your design really needs 500 classes, I don't
forsee any bottleneck.  5000 instances should be no problem.