Elixir by the Bellyful
summary
Explains why Elixir sits on the Erlang VM/OTP and what actually makes it fast and reliable: lightweight processes with 1–2KB initial heaps and per-process GC (so no stop-the-world GC), schedulers using 2,000 reductions each, linear scaling up to dozens of cores, and supervision trees built from GenServer/ supervisors. Shows concrete demos: bare-metal Xen web worker boots and serves a request in 0.3s, and spawning a million-process chain completes in ~1.2s. Tooling: IEx, Mix, Hex, Plug, Nerves.
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chapters (13)
- 0:00Introduction
- 2:16History of Elixir
- 11:55Operating System
- 12:28Cooperative System
- 13:56Interactive Elixir
- 14:37Concurrency
- 16:05Actor Model
- 20:58Process Scheduling
- 27:25Jen Servers
- 35:12Modern tooling
- 40:58Functional programming
- 43:12Defaults
- 43:44Macros
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