How a fix in Go 1.9 sped up our Gitaly service by 30x After noticing a worrying pattern in Gitaly's performance, we uncovered an issue with fork locking affecting virtual memory size. Here's how we figured out the problem and how to fix it. Gitaly is a Git RPC service that we are currently rolling out across GitLab.com, to replace our legacy NFS-based file-sharing solution. We expect it to be fast