Concurrency

Advanced Go Concurrency Patterns

Master goroutines, channels, and concurrency patterns for building high-performance Go applications

Go’s concurrency model is one of its most powerful features. This guide explores goroutines, channels, and advanced patterns for writing efficient concurrent code.

Golang golang concurrency goroutines

How Go Channels Work: The Behavior Matrix

A practical guide to Go channels — receive, send, and close behavior across nil, unbuffered, buffered, and closed states

Channels are Go’s primary tool for coordinating goroutines, but their behavior changes drastically depending on their state. A channel can be nil, unbuffered, buffered, or closed — and the same operation (send, receive, close) does something different in each case. Getting this matrix wrong is how deadlocks and panics happen.

Golang golang channels concurrency