Dr Gopher, Anatomy of the Scheduler
summary
Explains how the Go runtime scheduler multiplexes goroutines onto OS threads by inspecting its core components G, M, and P and mechanisms like thread creation, thread parking, local run queues, and work stealing. Shows how these scheduler internals allow Go concurrency to abstract resource management while optimizing use of system threads.
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chapters (10)
- 0:00Introduction
- 1:09Scheduler role
- 3:38Scheduler goals
- 4:44P, M, G structure
- 6:07Local Run Queues
- 7:12Work Stealing
- 8:38Spinning threads
- 10:04Hand Off for syscalls
- 11:59Key mechanisms summary
- 13:07Conclusion
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