Hello, Carlton.
My name is Ichlasul Affan. I’m a first year Computer Science magister student at University of Indonesia. I’m looking through all GSoC project ideas and interested in fixing parallel testing for Windows, especially because I mostly used Windows as my main work OS when I’m doing Django projects.
Firstly, thank you very much for your initial advice. Just like Ahmad, I am currently feeling a bit intimidated on how I should initialize on contributing to Django. I am currently working on 1 issue in Trac but it’s about adding warning on UniqueConstraint for MySQL (easy-picking), to familiarize myself on how I should code. Is it worth it to continue working on that issue? I didn’t found new unreviewed issue on Django Test when I started to pick issues at Trac.
Secondly, I have read some of codes on django/test/runner.py and django/core/management/__init__.py. It shows that Django loads Apps registry at first by executing django.setup(), after that it continues by running the specific command (in this case, spawn a DiscoverRunner). Is it okay to start with django.setup() on each thread that being spawned using spawn method? Please correct me if I’m wrong. 
That’s all for now. Any further advice is very appreciated. Thanks.