Greg Hogan <c...@greghogan.com> skribis: > On Wed, Mar 5, 2025 at 7:48 AM Guillaume Le Vaillant <g...@posteo.net> wrote: > [...] >> You could also use btrfs instead of ext4 as file system; and if you >> activate compression, it divides the actual size taken by the Guix store >> by 3 (approximately). > > With the default zstd compression I am seeing a ratio of 2. Is there a > noticeably better configuration? > > $ sudo `which compsize` /gnu/store > Processed 27933035 files, 8142182 regular extents (20350437 refs), > 15681709 inline. > Type Perc Disk Usage Uncompressed Referenced > TOTAL 49% 260G 530G 1.5T > none 100% 132G 132G 365G > zstd 32% 128G 398G 1.2T
It depends on the compression level you use, and also on what is in the store. For example, if you keep many compressed source archives because you are compiling many packages, btrfs will not compress them. On a machine using zstd:1 for fast compression and the Guix daemon started with the "--gc-keep-derivations=yes" and "--gc-keep-outputs=yes" options to keep more things in the store to recompile packages, I get: Type Perc Disk Usage Uncompressed Referenced TOTAL 46% 47G 101G 261G none 100% 21G 21G 55G zstd 32% 26G 79G 205G
signature.asc
Description: PGP signature
