Dynamic Frequency Telemetry for Thermal Management
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Solution Overview
Problem
As integrated circuit (IC) fabrication advances, increased functionality leads to higher heat generation, posing thermal and power management challenges, particularly in portable devices where power consumption needs to be minimized to extend battery life, and existing frequency adjustment methods are not transparent to system integrators or users.
Innovation Solution
Implementing flexible and dynamic frequency-related telemetry techniques that allow communication between the Operating System and processor, providing transparent and dynamic frequency adjustment information, including high-order statistics, to enable efficient power management across various compute domains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional functionality is integrated onto a single IC chip, then device capability and versatility are improved, but heat generation and power consumption increase
Solution Approach 1:
The patent implements dynamic frequency adjustment capabilities that allow the processor to adapt its operating frequency based on thermal conditions and workload requirements. This enables the system to optimize performance while managing heat generation through runtime frequency changes rather than static configuration.
Solution Approach 2:
The system changes operational parameters (frequency, voltage) dynamically based on thermal and performance conditions. By adjusting these parameters in response to real-time measurements, the system can maintain versatility while controlling heat generation through parameter optimization.
2Use of energy by moving object
If processor operating frequency is adjusted to improve power efficiency, then power consumption is reduced, but transparency to system integrators and users is lost
Solution Approach 1:
The patent implements feedback mechanisms that provide telemetry information about frequency adjustments back to system integrators and users. This feedback loop maintains transparency by reporting actual frequency operation, power consumption metrics, and adjustment reasons, allowing stakeholders to understand and optimize power management behavior.
Solution Approach 2:
The system introduces intermediary telemetry interfaces and monitoring mechanisms that bridge the gap between automatic frequency adjustment processes and human users or system integrators. These intermediaries translate internal frequency management decisions into observable and reportable information without interfering with the power optimization process.
3Productivity
If frequency adjustment decisions are made automatically, then power management efficiency is improved, but control transparency and debugging capability are reduced
Solution Approach 1:
Comprehensive telemetry feedback mechanisms track and report frequency adjustment decisions, providing visibility into automatic power management operations. This enables debugging and analysis of frequency behavior while maintaining automated control efficiency.
Solution Approach 2:
The system creates informational copies of frequency adjustment decisions and operational states through telemetry data. These copies allow external tools and users to analyze frequency behavior without interfering with the automated control process, effectively decoupling observability from control.
Data Source
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AI summary
Methods and apparatus relating to techniques for flexible and/or dynamic frequency-related telemetry are described. In an embodiment, logic, coupled to a processor, communicates information to a module. The communicated information includes a duration counter value corresponding to a duration in which an operating characteristic of the processor is controlled. Other embodiments are also disclosed and claimed.