- [Architecture of open source applications](http://www.aosabook.org/en/ghc.html)
# Trac
Good for digging up recent'ish development history of various topics.
- [Trac](https://ghc.haskell.org/trac/ghc/)
- [Use this example query to search Trac since the search functionality is useless](https://www.google.com/?gws_rd=ssl#q=site:https:%2F%2Fghc.haskell.org%2Ftrac%2Fghc%2F+garbage+collection)
# Memory management / Garbage collection
- https://wiki.haskell.org/GHC/Memory_Management
- Current GC: [Parallel Generational-Copying Garbage Collection with a Block-Structured Heap; Simon Marlow, Tim Harris, Roshan P. James, Simon Peyton Jones](http://community.haskell.org/~simonmar/papers/parallel-gc.pdf)
- Experimental concurrent GC abandoned for worsening performance too much: [Multicore Garbage Collection with Local Heaps; Simon Marlow, Simon Peyton Jones](http://community.haskell.org/~simonmar/papers/local-gc.pdf)
- [RTS notes on the garbage collector](https://ghc.haskell.org/trac/ghc/wiki/Commentary/Rts/Storage/GC)