How a fix in Go 1.9 sped up our Gitaly service by 30x

A blog post about how and why upgrading to Go 1.9 made such a big difference to the performance of our Git RPC service.

https://about.gitlab.com/blog/2018/01/23/how-a-fix-in-go-19-sped-up-our-gitaly-service-by-30x/