PurePerformance

PurePerformance

The brutal truth about digital performance engineering and operations. Andreas (aka Andi) Grabner and Brian Wilson are veterans of the digital performance world. Combined they have seen too many applications not scaling and performing up to expectations. With more rapid deployment models made possible through continuous delivery and a mentality shift sparked by DevOps they feel it’s time to share their stories. In each episode, they and their guests discuss different topics concerning performance, ranging from common performance problems for specific technology platforms to best practices in development, testing, deploying and monitoring software performance and user experience. Be prepared to learn a lot about metrics. Andi & Brian both work at Dynatrace, where they get to witness more real world customer performance issues than they can TPS report at.

  1. 1d ago

    Open Source Contribution Is Self-Preservation, Not Generosity

    Around 90% of commercial software is built on open source, yet only a small fraction of the companies using it give anything back. Meanwhile, the maintainers who keep it running are burning out, and a 2025 survey found 58% of them have considered quitting. In this episode, Brian Wilson and Andi Grabner talk with Sebastian Kister, Chief AI Architect and Lead of OSPO Contribution & Maintainership at Volkswagen Group (assigned by Audi AG). Andi met Sebastian at Cloud Native Days Austria, where his talk on enterprise AI foundations made one point very clear: passive consumption of open source is a long-term risk. Sebastian explains why upstream contribution is a business case and not charity. It shapes the standards your products depend on, extends your product lifecycle, and prevents short-sighted migrations. It also gets you ready for regulation like the EU AI Act and SBOM mandates, and it’s one of the strongest recruiting signals for top engineering talent. He also shows how it can be organized in practice: a group-level OSPO that frees employees to contribute to projects like OpenTelemetry and OpenSearch during work time, and connects the inside world with the outside one. We also dig into: Sovereignty: why it has less to do with geography than with control, business continuity, and being able to leave the room on your own terms. Make or buy: Andi plays devil’s advocate on whether buying enterprise software is a safe alternative to contributing. Evaluating vendors: why contribution should become a criterion when enterprises choose vendors. Writing for AI: whether to write blogs for humans or for AI agents. And yes, the world’s best limoncello of 2025 doesn’t come from Italy. It comes from Sebastian’s distillery in Bavaria. Links we discussed Sebastians LinkedIn: https://www.linkedin.com/in/sebastiankister/ Cloud Native Austria Talk: https://www.youtube.com/watch?v=zue4cg8lcR0 Sebastians new blog: https://sebastiankister.de/keynote/

    Open Source Contribution Is Self-Preservation, Not Generosity
  2. Aug 3

    80% AI-Written Code: How 1KOMMA5 Measured the Real Impact of AI on Engineering

    AI coding tools are everywhere, but how do you prove they're actually making engineers more productive? In this episode of PurePerformance, hosts Brian Wilson and Andi Grabner welcome Michael Reichenbach, Platform Engineer at 1KOMMA5°, to discuss the company's journey toward more than 80% AI-written code. Rather than relying on anecdotes or hype, Michael shares how his team designed a real experiment to measure the impact of AI-assisted development. We explore the metrics they chose, why traditional DORA metrics such as deployment frequency and change failure rate were not the right indicators, and how they instead focused on "Time to Code" from ticket creation and first commit to merged pull request. Michael also explains how AI lowered the barrier for contribution across the organization, enabling even non-engineering teams to prototype and build solutions faster. The conversation also dives into the operational side of AI adoption, including AI observability dashboards, budget controls, Slack alerts, usage monitoring, and the surprising decision to intentionally limit AI spending during their proof of concept. Whether you're evaluating Cursor, GitHub Copilot, or other AI coding tools, this episode offers practical lessons on measuring value, maintaining quality, and scaling AI adoption responsibly. Links we discussed Michael's LinkedIn: https://www.linkedin.com/in/michael-reichenbach/ Klaus's LinkedIn: https://www.linkedin.com/in/langenheldt/ Talk at Cloud Native Munich: https://www.youtube.com/watch?v=Ntf0h0vFuMQ 1Komm5 Website: https://1komma5.com/ Kenote from KubeCon: https://youtu.be/P1phxZHJGrA?t=570&is=9DYnbK8VGorMmaXo Michael's YouTube Playlist: https://youtube.com/playlist?list=PLn-u2xOcMlXlVweZ0aB4pu6VM6Xv6895i&si=MZ6jzF-VwIAY3HFF

    80% AI-Written Code: How 1KOMMA5 Measured the Real Impact of AI on Engineering
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About

The brutal truth about digital performance engineering and operations. Andreas (aka Andi) Grabner and Brian Wilson are veterans of the digital performance world. Combined they have seen too many applications not scaling and performing up to expectations. With more rapid deployment models made possible through continuous delivery and a mentality shift sparked by DevOps they feel it’s time to share their stories. In each episode, they and their guests discuss different topics concerning performance, ranging from common performance problems for specific technology platforms to best practices in development, testing, deploying and monitoring software performance and user experience. Be prepared to learn a lot about metrics. Andi & Brian both work at Dynatrace, where they get to witness more real world customer performance issues than they can TPS report at.