Worker Threads & Shared Memory

Every subchapter in this chapter, free to read online. Work through them in order, or jump straight to the runtime detail you need.

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Workers vs Processes

Where worker threads fit beside async I/O, libuv's thread pool, and child processes for CPU-bound JavaScript work.

Other chapters

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CHAPTER 01Node.js Architecture4 subchaptersCHAPTER 02Buffers4 subchaptersCHAPTER 03Streams6 subchaptersCHAPTER 04File System5 subchaptersCHAPTER 05Process & OS4 subchaptersCHAPTER 06The Module System5 subchaptersCHAPTER 07Async Patterns & Control Flow6 subchaptersCHAPTER 08Runtime Platform APIs & Tooling5 subchaptersCHAPTER 09Network Fundamentals with Node.js7 subchaptersCHAPTER 10HTTP Servers, Clients & Proxies7 subchaptersCHAPTER 11TLS, HTTPS & HTTP/26 subchaptersCHAPTER 12API Design, Contracts & Frameworks7 subchaptersCHAPTER 13Realtime & Streaming APIs5 subchaptersCHAPTER 14Child Processes & OS Workloads6 subchapters