Python 3.14's free-threaded GC: 2–12x faster than 3.13.
Three changes made that happen:
→ Mark-alive pass
→ Software pre-fetching
→ RSS-based collection trigger
Neil Schemenauer explains each one → buff.ly/YksbvcN#Python#CPython#FreethreadedPython
free-threaded Python in 2025:
🧵 asyncio: 6x faster with 6 workers
🧵 NumPy arrays: ~1000x faster at scale
🧵 PyTorch inference: 7x lower latency
Ralf Gommers keynote covers all of it, including a live SciPy JAX demo → buff.ly/0DpsLaH#Python#FreethreadedPython