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# Mutex Profiling in Go

## History

Block profiling was [implemented](https://go-review.googlesource.com/c/go/+/29650/) by [Peter J. Weinberger](https://en.wikipedia.org/wiki/Peter_J._Weinberger) and first appeared in the [go1.8](https://golang.org/doc/go1.8#mutex_prof) release (2017-02-16).

## Links

- https://rakyll.org/mutexprofile/
- https://talks.golang.org/2017/state-of-go.slide#23