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I don't know why my original message isn't accepted by the list, but it's on
forum: http://forum.world.st/Huge-image-td4876854.html
Anyway, thanks Dale, I'm going to try your suggestion.
Davide
Dale Henrichs-3 wrote
> David,
>
> I don't have a direct solution, but I have been playing with an analysis
> technique for solving this particular type of problem: scads of Strings
> and a need to "make sense of the reference graph".
>
> If you look at this example[1], you'll see that there are 202K instances
> of String (this example is from a GemStone db). the nodes pointing to
> the String node, show that of the 202K strings, there are 70K instances
> of Array referencing one or more of the 202k strings; 47K instances of
> MCVersionInfo and 43K MethodVersionRecord instances.
>
> I've found that this approach can help you understand why you have so
> many strings ...
>
> The basic technique is to gather the instances of String, then for each
> instance of string, gather the collection of objects that reference the
> String instance and summarize the reference by class instance count and
> keep an IdentitySet of the instances referencing Strings by class so
> that you can build the next level of references ....
>
> For GemStone, this information is displayed using Roassal2 and the
> calculations are done by scanning a backup of the repository...
>
> You could probably brute force calculate this in Pharo (be sure to
> isolate the objects that you are using in your analysis from the set of
> objects being analyzed otherwise things get out of control ...
>
> HTH,
>
> Dale
>
>
> [1]
> https://github.com/dalehenrich/obex#class-instance-counts-based-on-selected-set-of-instances
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