> It would be nice to see a separate post on this process and any performance comparisons.
We (I) see gitlab-git-http-server more as a functional improvement than as a performance improvement. It is a better match for slow Git HTTP requests ('git push', 'git pull') than Unicorn+Rails.
Having said that, I am also curious about what this change means for performance and other areas. It already helped us find a performance issue in the Rails app.