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November 6-9
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Wednesday, November 8 • 5:25pm - 6:00pm
Node Size Matters - Running K8s as Cheaply as Possible - Alex Meijer & Michael Dresser, Stackwatch

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What if you discovered that your Kubernetes cluster had less than half of its nodes available for you to run your workloads… that would be an emergency, right? Depending on how you select the nodes in your cluster, you could be in such a situation today - without even knowing it! The cause is one of the biggest “hidden” costs of using Kubernetes: system overhead. Overhead is the portion of every node that is designated unusable and is reserved for Kubernetes to provide its services to you. While overhead cannot be entirely eliminated, Alex and Michael will present their work exploring how to minimize this performance-robbing property of Kubernetes. They will present a study of overheads across the major providers’ node families, demo new overhead measurement features available in Opencost (a CNCF Sandbox project), and provide an analysis of the results. This talk will also include a brief overview of actionable recommendations and novel methodologies for sizing Kubernetes clusters.

avatar for Alex Meijer

Alex Meijer

Staff Software Engineer, Stackwatch, Inc
Alex Meijer has been working with Kubernetes for his entire career, being at various times a user, operator, and currently as someone working to help others use Kubernetes better. He has served in startups ranging in size from 5-90 people. Alex contributes to the Opencost project... Read More →
avatar for Michael Dresser

Michael Dresser

Senior Software Engineer, Stackwatch
Michael Dresser has been working with Kubernetes since 2019, including a stint at Google contributing to K8s (sig-testing). Currently, Michael works on Opencost and Kubecost, focusing on Kubernetes cost savings and data pipelines.

Wednesday November 8, 2023 5:25pm - 6:00pm CST
W179 (Ground Level)
  Operations + Performance