The main developer of ShedSkin has shown this link, with comparisons between several hash functions, it may be interesting for D too:
http://www.strchr.com/hash_functions

Bye,
bearophile

But real-world code is not obvious, here they explain why a worse hash function is better for CPython: http://mail.python.org/pipermail/python-3000/2007-September/010351.html

Bye,
bearophile