It's not Perforce. It was Perforce 20 years ago. Since then it was completely rewritten, while preserving some backwards compatibility. Here's an article that

It's not Perforce. It was Perforce 20 years ago. Since then it was completely rewritten, while preserving some backwards compatibility. Here's an article that I've found: https://cacm.acm.org/magazines/2016/7/204032-why-google-stores-billions-of-lines-of-code-in-a-single-repository/fulltext https://cacm.acm.org/magazines/2016/7/204032-why-google-stor...