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C++ 75.7%
Shell 10.7%
Nix 7.2%
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Makefile 1%
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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 Use the nix command (and flakes) in the CI 2022-01-26 16:41:37 +01:00
config Run autoupdate 2021-06-01 11:42:38 +02:00
contrib function-trace: always show the trace 2019-09-18 23:23:21 +02:00
doc/manual Merge pull request #6089 from edolstra/dot-default 2022-02-24 21:16:58 +01:00
m4 autoconf: Fix C++17 detection not working on Ubuntu 16.04. 2019-07-03 04:32:25 +02:00
maintainers Integrate push-docker.sh into the release script 2022-02-18 13:58:01 +01:00
misc completions: pipe stderr to /dev/null 2022-02-04 22:43:16 +01:00
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 .dir-locals.el: Set c-block-comment-prefix 2020-07-10 11:21:06 +02:00
.editorconfig Add .editorconfig 2017-06-05 22:57:28 +01:00
.gitignore Added result and .vscode to gitignore 2022-01-15 19:17:40 -08:00
.version Bump version 2022-01-25 00:14:59 +01:00
boehmgc-coroutine-sp-fallback.diff Fix leaking pthread_attr_t 2021-11-03 22:54:16 +01:00
bootstrap.sh bootstrap: Simplify & make more robust. 2011-09-06 12:11:05 +00:00
configure.ac Require lowdown 0.9.0 2022-02-01 10:44:19 +01:00
COPYING * Change this to LGPL to keep the government happy. 2006-04-25 16:41:06 +00:00
default.nix Remove url literals 2022-01-24 13:28:21 +01:00
docker.nix docker: var/tmp make add -p option to mkdir to also create parent dirs 2022-01-15 14:11:37 +01:00
flake.lock Add regression / performance tests against a fixed revision of Nixpkgs 2022-01-25 00:07:30 +01:00
flake.nix add sourcehut integration test 2022-02-23 11:58:09 -03:00
local.mk Remove 'dist' target 2020-12-03 16:17:58 +01:00
Makefile Stop vendoring nlohmann_json 2022-01-26 11:50:53 +01:00
Makefile.config.in use LOWDOWN_LIBS variable 2022-01-30 20:59:58 +02:00
precompiled-headers.h Config: Use nlohmann/json 2020-08-20 11:02:16 +02:00
README.md throw freenode down the memory hole 2021-05-27 21:48:39 +02:00
shell.nix Remove url literals 2022-01-24 13:28:21 +01:00

README.md

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.