Seth FlynnandBernardo Meurer Costa c1370bc81c build: use mimalloc
mimalloc is a compact general purpose allocator from Microsoft. It
consistently outperforms glibc's `malloc()` in allocation-heavy
workloads, such as Lix's evaluator

It's currently only linked in the main `nix` executable, as Boehm's GC
uses its own allocator. Other allocations that *do* go through glibc's
`malloc()` are still much faster, though

Benchmarked on x86_64-linux against Nixpkgs `bd07873`:

| attribute         | thunks  | lix@`1396012` | mimalloc | uplift |
|-------------------|---------|---------------|----------|--------|
| hello             | 206444  | 0.726s        | 0.620s   | 1.17x  |
| chromium          | 1177382 | 2.273s        | 2.136s   | 1.06x  |
| firefox-unwrapped | 1394797 | 2.521s        | 2.378s   | 1.06x  |
| texliveFull       | 3186440 | 4.992s        | 4.672s   | 1.07x  |
| nixosTests.gnome  | 7905808 | 6.115s        | 5.723s   | 1.07x  |

Based-on: https://github.com/NixOS/nix/pull/15596
Co-authored-by: Bernardo Meurer Costa <beme@anthropic.com>
Change-Id: I3ad92eacc075efeaf3d9f7730ada7b29835536a4
2026-07-04 10:39:30 +00:00
2026-06-28 12:46:20 +00:00
2025-09-29 15:22:41 +02:00
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2026-07-04 10:39:30 +00:00
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2024-03-29 22:57:40 -07:00
2025-12-17 20:59:59 +01:00
2026-06-22 17:58:20 +02:00
2026-06-22 17:58:20 +02:00
2026-07-04 10:39:30 +00:00
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Lix

Lix is an implementation of Nix, a powerful package management system for Linux and other Unix systems that makes package management reliable and reproducible.

Read more about us at https://lix.systems.

Installation

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

$ curl -sSf -L https://install.lix.systems/lix | sh -s -- install

For systems that already have a Nix implementation installed, such as NixOS systems, read our install page

Building And Developing

See our Hacking guide in our manual for instruction on how to set up a development environment and build Lix from source.

Additional Resources

License

Lix is released under LGPL-2.1-or-later.

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Description
Working fork of Lix - carries the adaptive load-aware build-remote patch. Upstream: gerrit.lix.systems
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