diff options
| author | Atemu <atemu.main@gmail.com> | 2021-01-10 10:03:50 +0100 |
|---|---|---|
| committer | Atemu <atemu.main@gmail.com> | 2021-01-15 17:17:52 +0100 |
| commit | 2fcab516c4cae0bc50455abd356f60e576fec5d9 (patch) | |
| tree | 267db2aa5a208ec058539baf8b9599927499de6f /nixos/modules | |
| parent | f211631c1cb3e94828c7650b5d12c1e5a89e0e16 (diff) | |
iso-image: enable XZ compress filter
Minimal ISO:
1m21 -> 2m25
625M -> 617M
Plasma5 ISO:
2m45 -> 5m18
1.4G -> 1.3G
Decompression speed stays about the same. It's just a few seconds for the whole
image anyways and, with that kind of speed, you're going to be bottlenecked by
IO long before the CPU.
Diffstat (limited to 'nixos/modules')
| -rw-r--r-- | nixos/modules/installer/cd-dvd/iso-image.nix | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/nixos/modules/installer/cd-dvd/iso-image.nix b/nixos/modules/installer/cd-dvd/iso-image.nix index 43d20a556f8d..1418420afcd9 100644 --- a/nixos/modules/installer/cd-dvd/iso-image.nix +++ b/nixos/modules/installer/cd-dvd/iso-image.nix @@ -425,7 +425,12 @@ in }; isoImage.squashfsCompression = mkOption { - default = "xz -Xdict-size 100%"; + default = with pkgs.stdenv.targetPlatform; "xz -Xdict-size 100% " + + lib.optionalString (isx86_32 || isx86_64) "-Xbcj x86" + # Untested but should also reduce size for these platforms + + lib.optionalString (isAarch32 || isAarch64) "-Xbcj arm" + + lib.optionalString (isPowerPC) "-Xbcj powerpc" + + lib.optionalString (isSparc) "-Xbcj sparc"; description = '' Compression settings to use for the squashfs nix store. ''; |