Re: Reported filesystem size (fs usage, df) discrepancies

On Thursday 2025-07-17 17:40, Jan Engelhardt wrote:
># bcachefs fs usage /v | head -n2
>Filesystem: (uuid)
>Size:                  5373893950976 [5004 GiB]
>
>How did we reportedly lose 393 GiB / 7.8%?

Once I specifically asked $internet for "8%", information rather
copiously started appearing.

 https://lobste.rs/c/ifvz2n
 https://bcachefs.org/bcachefs-principles-of-operation.pdf pg. 3

pointing to garbage collection. Now it kinda all comes together,
including these mkfs lines.

>  gc_reserve_percent:                      8
>  gc_reserve_bytes:                        0 B