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16-17 June
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Never Underestimate Memory Architecture - Bryan Boreham, Grafana Labs
Monday June 16, 2025 11:30 - 12:00 JST
Level 1 | Pegasus Ballroom B2+C
Modern cloud servers are built on NUMA (Non-Uniform Memory Access) and SMT (Symmetric Multi-Threading, aka Hyperthreading) — but few engineers realize how much these technologies impact application performance.

NUMA means that your cloud server’s memory might be significantly slower to access, because it’s connected to a different CPU, while Hyperthreading makes a single CPU core pretend to be two, but not at twice the speed.

This talk will:
• Demystify NUMA & Hyperthreading — what they are, how they work, and why they matter.
• Explore Kubernetes integration—the (limited) ways Kubernetes interacts with NUMA.
• Show real-world performance impact — illustrated with measurements on AWS and Google Cloud.
• Give you visibility — how to use Prometheus metrics and Linux commands to view your servers’ NUMA and SMT configurations.

By the end of the session, you'll have an understanding of the issues, and the tools to measure and their impact on the performance of your workloads.
Speakers
avatar for Bryan Boreham

Bryan Boreham

Distinguished Engineer, Grafana Labs
Bryan Boreham is a Distinguished Engineer at Grafana Labs, working on highly scalable storage for metrics, logs and traces. Bryan's career has ranged from charting pie sales at a bakery to real-time pricing of billion-dollar bond trades. A contributor to many Open Source projects... Read More →
Monday June 16, 2025 11:30 - 12:00 JST
Level 1 | Pegasus Ballroom B2+C
  Operations + Performance

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