> From the Facebook blog post, it seems like the key issue was Facebook's internal filesystem monitoring tool (Watchman) was easier to integrate with Mercurial

> From the Facebook blog post, it seems like the key issue was Facebook's internal filesystem monitoring tool (Watchman) was easier to integrate with Mercurial than with Git: > https://engineering.fb.com/2014/01/07/core-infra/scaling-mer https://engineering.fb.com/2014/01/07/core-infra/scaling-mer... That link is from 2014, is there any more recent work to make Git use a file watcher rather than scan the whole tree?