CachyOS is a very fast out-of-the-box Linux distribution and for those concerned about Python performance, the newest updates to this Arch Linux based distribution will provide even better performance.

This weekend CachyOS pushed out a new Python update that switches over to using the new tail-call interpreter of Python 3.14. When built with a compatible compiler such as the new GCC 16, this can enhance the Python performance by 5~15% depending upon the particular workload.

The original CPython pull request that introduced the tail-call interpreter last year spells out all the details and the very significant performance benefits from this new interpreter. This new interpreter debuted as an option with Python 3.14 .

CachyOS on X is using 5~15% as the baseline figure for the approximate performance benefits when upgrading CachyOS with its new Python package. No changes by CachyOS users are needed besides upgrading to the latest packages.