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4911a10a4e
XZ compresses significantly better than bzip2. Here are the compression ratios and execution times (using 4 cores in parallel) on my /var/run/current-system (3.1 GiB): bzip2: total compressed size 849.56 MiB, 30.8% [2m08] xz -6: total compressed size 641.84 MiB, 23.4% [6m53] xz -7: total compressed size 621.82 MiB, 22.6% [7m19] xz -8: total compressed size 599.33 MiB, 21.8% [7m18] xz -9: total compressed size 588.18 MiB, 21.4% [7m40] Note that compression takes much longer. More importantly, however, decompression is much faster: bzip2: 1m47.274s xz -6: 0m55.446s xz -7: 0m54.119s xz -8: 0m52.388s xz -9: 0m51.842s The only downside to using -9 is that decompression takes a fair amount (~65 MB) of memory. |
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| .. | ||
| build-remote.pl.in | ||
| copy-from-other-stores.pl.in | ||
| copying-collector.pl | ||
| download-using-manifests.pl.in | ||
| find-runtime-roots.pl.in | ||
| install-nix-from-closure.sh | ||
| Makefile.am | ||
| nix-build.in | ||
| nix-channel.in | ||
| nix-collect-garbage.in | ||
| nix-copy-closure.in | ||
| nix-generate-patches.in | ||
| nix-http-export.cgi.in | ||
| nix-install-package.in | ||
| nix-prefetch-url.in | ||
| nix-profile.sh.in | ||
| nix-pull.in | ||
| nix-push.in | ||
| nix-reduce-build.in | ||
| remove-patches.pl | ||
| show-duplication.pl | ||