It's an impressive feat but something I find even more impressive is the scale they need to be prepared for. The performance challenges of maintaining infrastru

It's an impressive feat but something I find even more impressive is the scale they need to be prepared for. The performance challenges of maintaining infrastructure for as many developers as Facebook/Google employ is constant and demanding. At my extremely small startup in the past ~6 months I've made about 1,000 files (@ HEAD, not including deletions). So, maybe, at the absolute worst case each engineer could produce ~150 files/month. Facebook likely has ~1,000 engineers. That's a worst case 1,800,000 files/year + an existing massive code base. Good luck to the engineers who are forever battling the scaling issues underlying these orgs! It's extremely impressive to even hear about overcoming these huge hurdles.