Testing
Warning Data Race Detected in go test and How to Fix It
Fix WARNING: DATA RACE from go test -race. Read the report, find the two accesses and the goroutine that started them, and choose a mutex, channel or atomic.
7 min read
Tag
race detector
5 articles
Testing
Run the Race Detector in Go Tests and in CI Pipelines
Run go test -race locally and in CI: read a data race report, see the lost updates it explains, use GORACE options, and plan for the extra time and memory.
7 min read
Concurrency
Data Races in Go Explained With Real Reproducible Examples
What a data race is in Go, with examples you can run: lost counter updates, vanished appends, inconsistent reads, and the three ways to remove each race.
7 min read
Concurrency
Why a Data Race Is Never Benign in Go Programs for Real
The usual excuses for a harmless data race in Go, tested: torn slice reads you can reproduce, a compiler that deletes your store, and double-checked locking.
7 min read
Editor's pick
ConcurrencyGuide
The Race Detector in Go and How to Read Its Output
Turn on the Go race detector, read a report line by line, fix what it finds, measure its cost and learn what it cannot see, with CI and GORACE settings.
14 min read