alt Hacker NewsIt can't be done without fs specific snapshots - otherwise how would it distinguish between a cp/rsync needing consistent reads vs another sqlite client wanting the newest data?
Replies
o11c • 05/01/2025
Obligatory "LVM still exists and snapshots are easy enough to overprovision for"
➕ show 1 reply
I would assume cp uses ioctl (with atomic copies of individual files on filesystems that support CoW like APFS and BTRFS), whereas sqlite probably uses mmap?