# LXD > This is the documentation for LXD, a system container and virtual machine manager. 2014-2026 AGPL-3.0, LXD contributors ## Pages in this subsection - [Performance tuning](index.html.md): Explanation of LXD performance tuning for production, including benchmarks, instance metrics, and tuning server settings and network bandwidth. ## Optional - [Top-level llms.txt](../../llms.txt): Complete documentation index.