Power Efficiency Calculation With Metrics Interpolation
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Solution Overview
Problem
Existing methods for calculating power efficiency in data centers, such as DCeP, face inaccuracies due to deviations in metrics measurement values and time frame mismatches, leading to large discrepancies between actual and calculated power consumption values.
Innovation Solution
A power efficiency calculation device that includes units for determining the need for and executing complementation between metrics measurement values and correcting time frame deviations, using linear or polynomial complementation schemes as needed, to accurately calculate integral values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If metrics measurement values are acquired directly from the physical server group without complementation, then the measurement process is simple, but large deviations occur between actual values and calculation results due to missing data in time frame portions
Solution Approach 1:
The patent performs complementation of metrics measurement values before calculating power efficiency. The complementation unit fills in missing data in time frame portions (P1 and P2) using linear interpolation or other methods, ensuring complete data coverage for accurate integration. This preliminary action prevents calculation errors while maintaining a relatively simple processing framework.
2Productivity
If the metrics acquisition interval is extended to reduce measurement frequency, then the measurement overhead is reduced, but the deviation between the time frame for power efficiency calculation and metrics acquisition interval increases
Solution Approach 1:
The patent introduces a complementation unit as an intermediary between metrics acquisition and power efficiency calculation. This unit bridges the time frame gap by generating intermediate values through interpolation, allowing extended measurement intervals without sacrificing calculation accuracy. The complementation values serve as mediators that connect sparse measurement points to the required assessment window.
3Measurement precision
If complementation of metrics measurement values is performed using complex interpolation methods, then the accuracy of integral value calculation is improved, but the calculation complexity and processing time increase
Solution Approach 1:
The patent applies complementation selectively rather than universally. The complementation unit determines whether complementation is necessary based on whether time frame portions contain missing data. When data is complete, no complementation is performed, avoiding unnecessary processing. This partial action approach maintains accuracy when needed while minimizing processing overhead when not required.
Data Source
AI summary
A power efficiency calculation device includes a metrics collection unit that acquires a metrics measurement value including a task execution amount and power consumption from a physical server group; a metrics measurement value complementation determination unit that determines whether or not an amount of change in the metrics measurement values is equal to or greater than a first prescribed value and determines a predetermined complementation scheme; a power efficiency calculation frame complementation determination unit that determines whether or not a value of a deviation between a time frame of power efficiency calculation and a metrics acquisition interval is equal to or greater than a second prescribed value, and determines a predetermined complementation scheme; a metrics complementation unit that performs complementation by using the predetermined complementation scheme determined; and a power efficiency calculation unit that calculates an integral value in a time frame of power efficiency calculation and calculates power efficiency.