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Technical references added to the library in the last 90 days.

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793–816 / 1044

Research paperFree to read

IEEE Transactions on Sustainable Computing (Institute of Electrical and Electronics Engineers (IEEE)) 2025

xPUE: Extending Power Usage Effectiveness Metrics for Cloud Infrastructures

Do not present facility PUE as the whole efficiency story: add an optional server-overhead factor (sPUE) to the energy model and show an 'effective PUE' = PUE x sPUE next to PUE.

  • Idle servers gave sPUE > 4; on a Dell R640 under rising CPU load the average sPUE was 3.1 and the lowest 2.7.

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