--On Thursday, February 10, 2022 8:49 PM -0500 Jon LaBadie <[email protected]> wrote:

atime updates that occur when {m,c}time are updated add
no additional burden.

Understood. If that's the only time it happened, I would be happy with that.

So you are concerned about a single "possible" inode update
once a day?

I'm using BackupPC to do rsync-based backups of all my systems. The "incremental" backups look only at size and timestamp changes. The less-frequent "full" backups checksum all my files. That means an extra write for every file that gets checked.

I'd love to have a version of relatime that only did the first kind of update, when ctime or mtime changed but not when 24 hours had passed.

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