Turin UMA/NUMA Tested, Low-Power NAS Built
Summary
Understanding memory architecture trade-offs is crucial for optimizing high-performance server builds, while home labs focus on efficiency and longevity.
- UMA Evaluation Goal - Performance impact of Uniform Memory Access (UMA) mode versus default Non-Uniform Memory Access (NUMA) on AMD Turin EPYC 9575Fs architecture was benchmarked 1.
- Low-Power NAS Project - A new DIY NAS build was initiated in 2026, prioritizing extremely low power draw for quiet, long-term operation 2.
- Component Sourcing - The project acknowledges current supply chain concerns while sourcing components for the durable, low-draw server 2.
- November 26, 2025 - Date Chester Lam published the initial evaluation on Turin memory modes 1.
- EPYC 9575Fs - Specific CPU model tested under UMA and NUMA configurations 1.
- 2026 Edition - The designated year for the author’s long-term DIY Network Attached Storage project 2.
Key Moments
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The goal of this evaluation is to understand the performance impact of running in UMA mode versus the default NUMA configuration on AMD's Turin platform.
— Article [1] -
I am building a NAS that I want to last a very long time, so I am trying to keep the power draw as low as possible to keep it quiet.
— Article [2]
Different Perspectives
Opposing View
Turin UMA mode evaluated, showing performance trade-offs vs NUMA setup.
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