In average, C++ is three times faster than Go in all the tests. These benchmarks aren't definitive but you can assume that in general the difference in performance is much less than an order of magnitude.
Python3 is in average 20 times slower than Go. And I love Python but Go isn't that much harder to use. It's quite a nice language, actually.
So, the exodus from Python to Go is very understandable, you gain a lot of performance without sacrificing much. And I think there's room for performance improvements in Go, perhaps in a couple of years C++ developers will make the transition. But I think that the real C++ killer is Rust. Time will tell.
In average, C++ is three times faster than Go in all the tests. These benchmarks aren't definitive but you can assume that in general the difference in performance is much less than an order of magnitude.
Now, look at the same comparison between Go and Python3: http://benchmarksgame.alioth.debian.org/u64q/benchmark.php?t...
Python3 is in average 20 times slower than Go. And I love Python but Go isn't that much harder to use. It's quite a nice language, actually.
So, the exodus from Python to Go is very understandable, you gain a lot of performance without sacrificing much. And I think there's room for performance improvements in Go, perhaps in a couple of years C++ developers will make the transition. But I think that the real C++ killer is Rust. Time will tell.