Garbage Collection Basics

9/23/15 -- Gabe Parmer talked about some garbage collection basics. We talked about the following:

• How to find unused objects and roots
• Steps to walk through memory and clean up references
• Mark & Sweep
• Deliberately avoiding talking about concurrent GC (sorry Neel)
• Walked through a simple (not working) implementation and discussed how it works

Companion code can be found on GitHub: https://github.com/GW-SHC/gwgc