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Atime and btrfs: a bad combination?

Posted Jun 7, 2012 23:23 UTC (Thu) by HenrikH (guest, #31152)
In reply to: Atime and btrfs: a bad combination? by quanstro
Parent article: Atime and btrfs: a bad combination?

But wouldn't each copy of the 10 snapshots have different atime (since it was grepped at different times) which would prohibit dedup?

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Posted Jun 10, 2012 16:52 UTC (Sun) by quanstro (guest, #77996) [Link]

i don't think so. if the atime differed in all the snapshots
to begin with, then the recursive grep would only
trigger a copy into the last snapshot.

it still makes more sense to me to copy into the
working tree rather than the snap. that way all
snaps can continue to share blocks as best they can.