OpenAI discovered that even small optimizations yield massive cost savings at scale after identifying a hidden CPU bottleneck within Fluent Bit, the observability platform used on every Kubernetes node. In today’s KubeCon coverage, TNS Senior Editor Joab Jackson shares how OpenAI found and disabled a single unnecessary file-size check, fstatat64, returning approximately 30,000 CPU cores back to its Kubernetes clusters.

In other technology topics we’re covering:

• Open Notebook is an open source, self-hosted alternative to Google’s proprietary NotebookLM, and TNS regular contributor Jack Wallen recently tried it out. It allows users to safely integrate AI research tools on their local network for enhanced privacy and security. The Docker-based solution covers more than 16 AI providers. In this tutorial, Jack helps readers get started with the tool.
• The rushed deployment of AI systems is reminiscent of past cybersecurity failures, writes Chris Sheehan, executive vice president of High Tech & AI at testing company Applause. In this contributed piece, Sheehan notes that only 33% of companies use necessary adversarial testing, creating a widening chasm of risk. Traditional software testing fails because AI models are unpredictable and can manifest subtle failures like bias or contextual misinterpretations that only surface through human interaction. Chris recommends organizations follow three pillars to create an effective AI quality assurance program.

The agents are here. So is the secret to managing them. I went to GitHub Universe 2025 to learn about the state of software development and its future. No surprise: Agents were the primary topic of discussion as the conversation shifted away from adopting AI coding assistants to managing agentic systems.

Running Kubernetes at scale is complex. This IDC Spotlight shows how a modern private cloud platform helps to automate, secure, and simplify private-cloud operations, turning Kubernetes from chaos into control.

Large language models and generative AI are transforming search, but can we trust the results? Our insightful session on how GenAI is reshaping search is now available on-demand. Don’t miss out!