[Python-Dev] No longer enable Py_TRACE_REFS by default in debug build
On Mon, Apr 15, 2019, 15:27 Michael Sullivan <sully at msully.net> wrote:
> > The main question is if anyone ever used Py_TRACE_REFS? Does someone
> > use sys.getobjects() or PYTHONDUMPREFS environment variable?
> I used sys.getobjects() today to track down a memory leak in the
> mypyc-compiled version of mypy.
> We were leaking memory badly but no sign of the leak was showing up in
> mypy's gc.get_objects() based profiler. Using a debug build and switching
> to sys.getobjects() showed that we were badly leaking int objects. A quick
> inspection of the values in question (large and random looking) suggested
> we were leaking hash values, and that quickly pointed me to
> I don't have any strong feelings about whether to keep it in the "default"
> debug build, though. I was using a debug build that I built myself with
> every debug feature that seemed potentially useful.
This is mostly to satisfy my curiosity, so feel free to ignore: did you try
using address sanitizer or valgrind?
-------------- next part --------------
An HTML attachment was scrubbed...