After the filesystem packer has hashed all 255k files then the DB operations starts to slow down the entire application. The DB writes get to 30k files before the TAR writer catches up and slows down to the DB writers speed. then it uses hours maybe days to finish...
Pre-packs huge filesystems containing repositories or other projects for compression, parsing gitignore files to exclude unnessecary files from packing - OptoCloud/OptoPacker