Hi Frédéric Nice to see you on the Pharo mailing list! Just the other day I needed this too and I implemented the following method: Object>>sizeInMemory "Returns the number of bytes used by this object in memory (including its header)" | headerSize instanceSize | headerSize := (self class indexIfCompact > 0 ifTrue: [ 4 ] ifFalse: [ 8 ]). instanceSize := (self class isVariable ifFalse: [ self class instSize * Smalltalk wordSize ] ifTrue: [ (self basicSize * (self class isBytes ifTrue: [ 1 ] ifFalse: [ Smalltalk wordSize ])) ]). ^ headerSize + instanceSize BTW, I think that would be a meaningful addition. Could somebody quickly check the method to verify that I didn't do any miscalculation? Cheers, Adrian On Oct 21, 2008, at 17:58 , Frederic Pluquet wrote:
Hello,
For an experimentation, I need to know the size in bytes of any object. Is there a way to obtain this information in Pharo ?
Fréd
-- Frédéric Pluquet Université Libre de Bruxelles (ULB) Assistant http://www.ulb.ac.be/di/fpluquet _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project