You have less control in Go, it being garbage collected and omitting pointer arithmetic. It also ships with a runtime and is statically compiled so the binary y

You have less control in Go, it being garbage collected and omitting pointer arithmetic. It also ships with a runtime and is statically compiled so the binary you get is 'large'. 'goroutines' (similar to green-threads) are very lightweight and be integrated with high-level CSP constructs (channels & select) or lower level concurrency primitives from the std lib. From what I've seen benchmark wise Go performs well. It is in the ballpark of fast, statically compiled, garbage collected languages, comparable to fast C#, Java etc. roughly speaking but surpasses them on certain tasks. If I remember correctly there are several web/http/json related tasks where Go is a top performer.