On 21/01/2022 19:28, Nix wrote:
rsync works by rename-then-rewrite on a whole-file basis (it doesn't just modify changed bits of files), so I'm afraid it's going to be terribly inefficient for large slightly-changed files, with many unchanging blocks CoWed nonetheless.
You're almost certainly right as the default.I need to investigate, but I'm sure I've been told it does have an option to only update-in-place stuff that's been changed. Specifically for updates like I want to do :-)
Cheers, Wol
