GCC can compile both C and Go. I searched for benchmarks but found none for GCC 9 that compares the performance of C and Go. Do you have any sources on this?
I don’t have a source, but it’s common knowledge in the Go community. Not sure how GCC works, but it definitely produces slower binaries than gc (the standard Go compiler). There are probably some benchmarks where this is not the case, but the general rule is that gcc is slower. gc purposefully doesn’t optimize as aggressively in order to keep compile times low.
Personally I would love for a —release mode that had longer compile times in exchange for C-like performance, but I use Python by day (about 3 orders of magnitude slower than C) so I’d be happy to have speeds that were half as fast C. :)
