#210: Codeflash and continuous Python performance with Saurabh Misra

About this episode

The episode discusses continuous Python performance and optimization techniques with guest Saurabh Misra.

Speed isn’t just a nice-to-have - it affects user experience, cloud costs, and how fast teams can move. In this episode, we chat with Saurabh Misra about making Python performance a continuous habit rather than a last-minute clean-up. He introduces Codeflash, a tool that profiles real code paths, explores optimisation options with LLMs, and only suggests changes that preserve behaviour and deliver measurable speedups. We delve into how this works, from tracing and line-level profiling to coverage-guided inputs and concolic testing. Saurabh shares real examples, including smarter NumPy usage, avoiding unnecessary global sorts, and using Numba to speed up numeric hotspots. We also talk about fitting performance checks into everyday workflows via the CLI, VS Code, and GitHub Actions. The big takeaway: performance doesn’t have to slow teams down — with the right tooling, it can be part of shipping well from day one. Connect with Saurabh at https://www.linkedin.com/in/saurabh-misra/ and find out more about Codeflash via the website https://www.codeflash.ai/ . ___ 💡🧑‍💻 Want to become a more focused, motivated, and effective Python developer? The Pybites Developer Mindset (PDM)…

People in this episode

Hosts: Julian Sequeira, Bob Belderbos

Guest: Saurabh Misra

Topics covered

• Python performance
• Code profiling
• Optimization techniques
• Continuous integration
• Developer tools

Keywords

• Python
• performance
• Codeflash
• optimization
• NumPy
• Numba
• GitHub Actions
• VS Code
• profiling

Mentioned in this episode

Organizations: Codeflash, NumPy, Numba, GitHub, VS Code

More episodes of Pybites Podcast

• #218: Why Python developers are learning Rust · March 4, 2026 · 19 min
• #217: Building a Production RAG Pipeline is Easier Than You Think - with Tim Gallati · February 25, 2026 · 49 min
• #216: Resolving our own git mess · February 19, 2026 · 33 min
• #215: Arthur Pastel on creating actionable optimisations with CodSpeed · February 12, 2026 · 42 min
• #214: Building useful AI - from classroom to real business impact · February 5, 2026 · 52 min
• #213: Seven software engineering tips to make real progress this year · January 29, 2026 · 19 min