this post was submitted on 18 Oct 2023
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It's really not that hard (lemmy.zip)
submitted 11 months ago by [email protected] to c/[email protected]
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[–] [email protected] 16 points 11 months ago (1 children)

Doesn't btrfs do this already?

[–] [email protected] 11 points 11 months ago (1 children)

Yeah, it's unnecessary with btrfs on somewhat recent kernels since it now enables discard=async by default.

[–] [email protected] 4 points 11 months ago

It is not necessary but still better to run both online discard and batched fstrim. from man:

Also, a device may ignore the TRIM command if the range is too small, so running a batch discard has a greater probability of actually discarding the blocks.