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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eldritch horrors 1f8b85786e libutil: remove vfork
vfork confers a large performance advantage over fork, measured locally
at 16µs per vfork agains 90µs per fork. however nix *almost always*
follows a vfork up with an execve-family call, melting the performance
advantage from 6x to only 15%. in most of those cases it's doing things
that are undefined behavior (like manipulating the heap, or even
throwing exceptions and trashing the parent process stack).

most notably the one place that could benefit from the vfork performance
improvement is linux derivation sandbox setup—which doesn't use vfork.

Change-Id: I2037b7384d5a4ca24da219a569e1b1f39531410e
2024-03-18 06:10:41 -06:00
.github un-thumbs-up ur github templates 2024-03-13 23:10:25 -07:00
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 diagnose duplicated attrs at correct path 2024-03-16 22:12:49 +01:00
m4 Merge pull request #6258 from obsidiansystems/gcc-bug-ergonomics 2024-03-04 05:24:33 +01:00
maintainers Forgejo issue importer 2024-03-16 00:22:33 -07:00
misc Merge pull request #9573 from hercules-ci/rl-next-md-frontmatter 2024-03-04 07:12:09 +01:00
mk Merge "Backport PR#10204 by 9999years: Replace foo with __NIX_STR in cxx-big-literal" into main 2024-03-14 00:07:21 -06:00
perl Merge pull request #9152 from obsidiansystems/split-out-perl-nix 2024-03-04 04:37:44 +01:00
scripts Delete the existing installer 2024-03-14 18:15:46 +00:00
src libutil: remove vfork 2024-03-18 06:10:41 -06:00
tests builtins.nixVersion: return fixed fake version 2024-03-17 00:32:19 -07:00
.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 Merge pull request #10085 from ShamrockLee/ignore-obsolete-testdir 2024-03-05 23:36:31 -07:00
.version Update version to 2.90.0 2024-03-07 19:57:39 -07:00
boehmgc-coroutine-sp-fallback.diff Merge pull request #8887 from obsidiansystems/bsd-cross-ci 2024-03-04 04:36:04 +01:00
boehmgc-traceable_allocator-public.diff Merge pull request #9430 from hercules-ci/remove-vlas 2024-03-04 07:11:25 +01:00
configure.ac Merge pull request #9844 from NixOS/pkg-config-gmock 2024-03-04 08:47:39 +01:00
CONTRIBUTING.md Put functional tests in tests/functional 2023-12-01 12:06:43 -05:00
COPYING * Change this to LGPL to keep the government happy. 2006-04-25 16:41:06 +00:00
default.nix add flake-compat to flake.nix and use sha256 in default.nix 2023-03-06 21:11:24 +01:00
docker.nix fix "add an option to include flake-registry..." 2023-05-16 14:35:31 +02:00
flake.lock flake.nix: upgrade to nixos-23.11 2024-03-08 23:59:01 +00:00
flake.nix flake: fix musl static stdenv devShell (fix nix flake check) 2024-03-17 10:05:18 -06:00
local.mk Merge pull request #9106 from Ericson2314/positive-source-filtering 2024-03-04 04:36:42 +01:00
Makefile out with the -O3, in with the -O2 2024-03-15 15:31:49 -06:00
Makefile.config.in Merge pull request #9106 from Ericson2314/positive-source-filtering 2024-03-04 04:36:42 +01:00
package.nix Backport PR#9633 by cole-h: package: don't set sysconfdir in devShells 2024-03-14 14:06:31 -07:00
precompiled-headers.h Config: Use nlohmann/json 2020-08-20 11:02:16 +02:00
README.md Improve hacking.md 2023-02-13 12:00:00 +04:00
shell.nix Remove url literals 2022-01-24 13:28:21 +01:00

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 to set up a development environment and build Nix from source.

Additional Resources

License

Nix is released under the LGPL v2.1.