Hi all. Sorry if this is the wrong venue for this.
First a question about the old reference counting implementation in Pypy. I wanted to learn and work on the garbage collection of Pypy. First, in this paper from <https://bitbucket.org/pypy/extradoc/raw/tip/eu-report/D07.1_Massive_Parallelism_and_Translation_Aspects-2007-02-28.pdf> 2007 about PyPy <https://bitbucket.org/pypy/extradoc/raw/tip/eu-report/D07.1_Massive_Parallelism_and_Translation_Aspects-2007-02-28.pdf>, it mentions a reference counting GC transformer, which is not mentioned anymore in the 2.4.x documentation ( https://pypy.readthedocs.org/en/release-2.4.x/garbage_collection.html). The latest documentation doesn't seem to have a version of this garbage_collection page. I wanted to do some studies on reference counting and the implementation does not have to be efficient or fast. What is the best way to get at the old refcount implementation? Would it be to work on the last version to have it? Secondly, I wanted to log a trace of all allocations of objects and all updates to references. Is there infrastructure or tool that exists for this? Thanks. - Raoul
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