Episode
#565: Tachyon, Python 3.15's Built-in Sampling Profiler
Talk Python To Me · Oct 2, 2026 · 1 h 28 min
Do you know what's actually slow in your Python app? Or are you guessing? Until now, profiling Python meant a tracing profiler that made your code 2 to 3 times slower. Or a third-party tool that broke with every new release. Python 3.15 fixes that. It ships Tachyon, a sampling profiler built into the standard library. It attaches to live production apps with almost zero overhead. My guests are…