This project is no longer maintained. If someone would like to adopt it I'll be happy to transfer it.
My branch of https://code.google.com/p/sflow2graphite/ for bug fixes and enhancements.
Changes from the original:
- supports and optional prefix for all metrics ('sflow.')
- a generic mechanism for handling calculated metrics
- calculated disk read and write latencies
- calculated cpu total ms (sum of user, system, and wio)
- added a verbose flag