tvl-depot/perl/lib/Nix
Eelco Dolstra 4911a10a4e Use XZ compression in binary caches
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.
2012-06-29 15:24:52 -04:00
..
Config.pm.in Use XZ compression in binary caches 2012-06-29 15:24:52 -04:00
CopyClosure.pm nix-copy-closure: Move the progressViewer directly adjacent to the ssh call so that network progress is what's measured 2012-04-13 14:29:12 +02:00
GeneratePatches.pm * Install NixManifest.pm, NixConfig.pm and GeneratePatches.pm under 2011-10-10 21:11:08 +00:00
Manifest.pm Unconfuse Rob 2012-04-10 16:40:51 +02:00
SSH.pm * Move SSH.pm. 2011-10-11 11:45:36 +00:00
Store.pm Support building with the Perl XS bindings disabled 2012-05-10 19:03:23 -04:00
Store.xs Add a command "nix-build --run-env" to reproduce the environment of a derivation 2012-03-19 04:14:21 +01:00