I use noatime,nodiratime on my BackupPC store (ext4).  Since in the
steady-state most BackupPC operations on the pool should be reads, it
should definitely make a difference.  However, I don't have benchmark data
to show how much.

Craig

On Thu, Apr 11, 2019 at 3:28 PM <backu...@kosowsky.org> wrote:

> Made a real difference when running BackupPC_migrateV3toV4
>
> Now relatime still updates the atime when files change or when atime
> is older than 24 hours (so presumably each file atime is updated at
> least once if nothing else was done for 24 hours before the migration)
>
> Would noatime make migrations materially faster by eliminating at
> least the first atime write?
>
>
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