Energy Profiling Apparatus for Real-Time Power Consumption Analysis
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Solution Overview
Problem
Current energy profiling tools are costly, complex, and lack real-time capabilities, making it difficult for developers to optimize power consumption in processor-executed code, and they often require additional equipment and cannot be easily integrated into devices.
Innovation Solution
An energy profiling apparatus and method that includes a measurement module, data processing module, and display module, with interfaces for receiving and transmitting data sets to generate a real-time energy profile, allowing independent operation and simplified integration, using a one-pin interface with data transfer rates independent of the clock frequency, enabling real-time power consumption monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing energy profiling tools are used, then power consumption characteristics can be analyzed, but the tools are costly and require additional equipment
Solution Approach 1:
The energy profiler integrates the measurement module, profile module, and display module into a single unified device that can be incorporated into evaluation boards. This merging eliminates the need for multiple separate equipment pieces while maintaining comprehensive power consumption analysis capability.
Solution Approach 2:
The energy profiler is designed as a multi-functional device that can profile power consumption across different processors and applications. The measurement module interfaces with various data processing modules, and the display module can present data in multiple formats (text, graphical, tabular), making the device universally applicable rather than requiring specialized equipment for each scenario.
2Measurement precision
If existing energy profiling tools are used, then power consumption data can be obtained, but the tools are complex and cannot be easily integrated
Solution Approach 1:
The energy profiler is divided into distinct functional modules: a measurement module for acquiring power consumption data, a profile module for generating energy profiles, and a display module for presenting results. This segmentation allows each module to be independently designed and optimized, simplifying the overall integration process while maintaining comprehensive functionality.
Solution Approach 2:
The profile module serves as an intermediary between the measurement module and display module. It receives raw power consumption data, processes it to generate meaningful energy profiles, and prepares the data for display in multiple formats. This intermediary layer simplifies integration by providing standardized interfaces between components.
3Measurement precision
If existing energy profiling tools are used, then power consumption characteristics can be traced, but real-time information is not provided
Solution Approach 1:
The measurement module continuously monitors power consumption during code execution, providing uninterrupted real-time data streams. The profile module continuously processes this data to generate updating energy profiles, ensuring that power consumption information is always current rather than providing delayed or periodic updates.
Solution Approach 2:
The display module provides immediate visual feedback to developers about power consumption characteristics as code is executed. This real-time feedback loop allows developers to observe the impact of code changes on power consumption instantly, enabling iterative optimization without waiting for separate analysis sessions.
4Measurement precision
If traditional profiling approaches are used, then power consumption can be measured, but the interface with processor is complex
Solution Approach 1:
The measurement module extracts power consumption data directly from the power source or voltage regulator circuitry without requiring complex interfaces with the processor itself. By measuring power at the supply level rather than interfacing with processor internals, the system simplifies the interface requirements while maintaining accurate power measurement capability.
Data Source
AI summary
An energy profiling apparatus for profiling power consumption characteristics of code being executed at an integrated circuit being powered by a power source and having a measurement module, a data processing module and a display module is disclosed. The energy profiling apparatus comprises first, second and third interfaces as well as a profile module. The first interface is configured to receive a first data set from the measurement module. The second interface is configured to receive a second data set from the data processing module. The third interface is configured to transmit a third data set to the display module. The profile module is configured to generate an energy profile of the code executed at the data processing module based on a correlation between the first data set and the second data set. Furthermore, the profile module is configured to transmit the energy profile as part of the third data set to the display module.