Export goroutine-related metrics from the Go runtime.

Anton Z's resource offers insights, tutorials, and resources for software developers and technology enthusiasts. Readers can learn about coding best practices, software architecture patterns, and emerging technologies. With articles, tutorials, and code samples, Anton Z provides  guidance and expertise for building software applications and advancing technical skills.

Anton Zhiyanov

Go 1.26 introduces new runtime metrics for goroutine monitoring, including per-state goroutine counts (waiting, runnable, running, not-in-go) and active thread counts. These metrics help identify production issues like lock contention, syscall bottlenecks, and CPU saturation by tracking goroutine behavior through the runtime/metrics package. The counters enable observability systems to detect scheduler problems and performance regressions without requiring full tracing.

Go proposal: Goroutine metrics