On 2024-05-26 22:13, Felix Lechner via "Development of GNU Guix and the GNU System distribution." wrote: > Hi, > > Today I ran 'guix gc' on equipment with an ext4 root partition. It had > these space characteristics beforehand: > > Filesystem Size Used Avail Use% Mounted on > /dev/dm-3 309047680 157252980 138126064 54% / > > or for human eyes: > > /dev/dm-3 295G 150G 132G 54% / > > After the run, the drive showed: > > /dev/dm-3 309047680 88267956 207111088 30% / > > or for human eyes: > > /dev/dm-3 295G 85G 198G 30% / > > By my math, about 65.8 GiB were recovered. > > When 'guix gc' was done, it announced: > > [184389 MiB] deleting '/gnu/store/...' > deleting `/gnu/store/trash' > deleting unused links... > note: currently hard linking saves 59224.03 MiB > guix gc: freed 110,649.49 MiBs > > Seeing the 184389 MiB number, or 180 GiB, already made me suspicious. > It exceeded my drive usage by 30 GiB. Even the more conservative 110649 > MiB "freed," however, are off by a mile. That would have been 108 GiB, > or 42 GiB more than the space actually recovered. > > Am I looking at those numbers the wrong way? Thanks! > > Kind regards > Felix
Are you using compression? (BTRFS, ZFS, etc)