# The Real Python Podcast - Episode #310: Performance Engineering: Profiling and Making Apps Fast by Default

DevFeed: [The Real Python Podcast - Episode #310: Performance Engineering: Profiling and Making Apps Fast by Default](<https://devfeed.tech/articles/the-real-python-podcast-episode-310-performance-engineering-profiling-and-making-apps-fast-by-default-4394.md>)

Original publisher: [Read original article](<https://realpython.com/podcasts/rpp/310/>)

Author: Real Python

Published: 2026-09-04T12:00:00Z

Content type: article

Language: en

Sources: [Real Python](<https://devfeed.tech/sources/real-python.md>)

Topics: [Python](<https://devfeed.tech/topics/python.md>), [Developer experience](<https://devfeed.tech/topics/developer-experience.md>), [Frameworks](<https://devfeed.tech/topics/frameworks.md>), [Microservice](<https://devfeed.tech/topics/microservice.md>), [Large Language Model](<https://devfeed.tech/topics/llm.md>)

Tags: [engineering](<https://devfeed.tech/tags/engineering.md>), [frameworks](<https://devfeed.tech/tags/frameworks.md>), [llms](<https://devfeed.tech/tags/llms.md>), [microservices](<https://devfeed.tech/tags/microservices.md>), [performance](<https://devfeed.tech/tags/performance.md>), [podcast](<https://devfeed.tech/tags/podcast.md>), [profiling](<https://devfeed.tech/tags/profiling.md>), [python](<https://devfeed.tech/tags/python.md>)

## AI overview

This Real Python Podcast episode discusses performance engineering for Python applications with Den Odell, author of "Fast by Default: Practical Performance Engineering." It covers performance budgets, profiling, data-driven decisions, planning for performance, and maintaining speed as systems and user bases grow.

## Source excerpt

How do you plan for the performance of your Python applications? What does a performance budget entail, and where should you spend your resources? This week on the show, we speak with Den Odell about his new book "Fast by Default: Practical Performance Engineering."