#355 Support for copy-on-write filesystems

[Lee Worden]

There are filesystems in use, particularly Btrfs last time I checked, that support copy-on-write. This would potentially be a great boon for WW, because it copies whole directories and then may only change a few of the files. A COW filesystem might be able to do that copy and the subsequent copy back into the source directory (merge) very quickly.

[Lee Worden]

I think there are some notes about this somewhere on our wikis. I should find that and add a link here.

• Is it possible to use COW over NFS?
• In addition to using the right filesystem, is it necessary to make special requests from the php code to get COW rather than normal copying?
• Should I install Btrfs somewhere and spend some time with it?

[Lee Worden]

Ticket moved from /p/workingwiki/feature-requests/50/