A modern, delicious implementation of the Nix package manager, focused on correctness, usability, and growth — and committed to doing right by its community
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pennae 4b2b0d3a55 remove GC_PTR_STORE_AND_DIRTY
turns out it's only necessary for MANUAL_VDB, which nix doesn't use. omitting
them gives a slight performance improvement on eval.

before:

  Benchmark 1: nix flakes search --no-eval-cache --offline ../nixpkgs hello
    Time (mean ± σ):      6.988 s ±  0.061 s    [User: 5.935 s, System: 0.845 s]
    Range (min … max):    6.865 s …  7.075 s    20 runs

  Benchmark 2: nix flakes eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix
    Time (mean ± σ):     332.6 ms ±   3.9 ms    [User: 299.6 ms, System: 32.9 ms]
    Range (min … max):   328.1 ms … 339.1 ms    20 runs

  Benchmark 3: nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
    Time (mean ± σ):      2.681 s ±  0.049 s    [User: 2.382 s, System: 0.228 s]
    Range (min … max):    2.607 s …  2.776 s    20 runs

after:

  Benchmark 1: nix flakes search --no-eval-cache --offline ../nixpkgs hello
    Time (mean ± σ):      6.946 s ±  0.041 s    [User: 5.875 s, System: 0.835 s]
    Range (min … max):    6.834 s …  7.005 s    20 runs

  Benchmark 2: nix flakes eval -f ../nixpkgs/pkgs/development/haskell-modules/hackage-packages.nix
    Time (mean ± σ):     330.3 ms ±   2.5 ms    [User: 299.2 ms, System: 30.9 ms]
    Range (min … max):   327.5 ms … 337.7 ms    20 runs

  Benchmark 3: nix eval --raw --impure --expr 'with import <nixpkgs/nixos> {}; system'
    Time (mean ± σ):      2.671 s ±  0.035 s    [User: 2.370 s, System: 0.232 s]
    Range (min … max):    2.597 s …  2.749 s    20 runs
2022-03-08 23:30:18 +01:00
.github
config
contrib
doc/manual Merge pull request #6089 from edolstra/dot-default 2022-02-24 21:16:58 +01:00
m4
maintainers
misc
mk mk/run_test.sh: Add missing backslash 2022-03-02 21:36:46 +01:00
perl Remove std::string alias (for real this time) 2022-02-25 16:13:02 +01:00
scripts installer: allow overriding nix user GID and UIDs 2022-03-01 19:17:41 +01:00
src remove GC_PTR_STORE_AND_DIRTY 2022-03-08 23:30:18 +01:00
tests nix profile test: Restart daemon 2022-03-02 23:08:49 +01:00
.dir-locals.el
.editorconfig
.gitignore
.version
boehmgc-coroutine-sp-fallback.diff
bootstrap.sh
configure.ac
COPYING
default.nix
docker.nix
flake.lock
flake.nix add sourcehut integration test 2022-02-23 11:58:09 -03:00
local.mk
Makefile
Makefile.config.in
precompiled-headers.h
README.md
shell.nix

Nix

Open Collective supporters Test

Nix is a powerful package manager for Linux and other Unix systems that makes package management reliable and reproducible. Please refer to the Nix manual for more details.

Installation

On Linux and macOS the easiest way to install Nix is to run the following shell command (as a user other than root):

$ curl -L https://nixos.org/nix/install | sh

Information on additional installation methods is available on the Nix download page.

Building And Developing

See our Hacking guide in our manual for instruction on how to build nix from source with nix-build or how to get a development environment.

Additional Resources

License

Nix is released under the LGPL v2.1.