Chip Power Reduction via Dynamic Frequency and Rate Limiting
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Solution Overview
Problem
Existing methods for reducing chip power consumption fail to automatically perform rate limiting for individual channels during frequency adjustments, leading to poor performance and packet loss due to large intervals between frequency and rate limiting adjustments, and require additional user operations for load-based adjustments.
Innovation Solution
A method and apparatus that monitor real-time load statuses of a chip's interfaces and internal bus, adjust the working frequency, and perform rate limiting for each channel using a token bucket mechanism, ensuring constant information transmission rates without affecting user bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If the working frequency of the chip is reduced to lower power consumption, then power consumption is reduced, but the information transmission rate of each channel is affected and bandwidth is compromised
Solution Approach 1:
The patent implements dynamic frequency adjustment by continuously monitoring load statuses of input interface, output interface, and internal bus, and adjusting the working frequency of the chip in real-time based on actual traffic conditions. This allows the chip to operate at lower frequencies during light load periods (reducing power consumption) while maintaining higher frequencies during heavy load periods (ensuring transmission rate), thus resolving the contradiction between power consumption and information transmission rate.
Solution Approach 2:
The patent changes the working frequency parameter dynamically based on load conditions. By adjusting the frequency parameter according to real-time monitoring data, the system optimizes the balance between power consumption and transmission performance, achieving lower power usage without permanently sacrificing bandwidth capability.
2Productivity
If manual adjustment of rate limiting parameter is performed to ensure single-channel bandwidth, then user bandwidth is ensured, but additional user operations and costs are required
Solution Approach 1:
The patent implements automatic rate limiting adjustment through embedded monitoring and control mechanisms. The chip autonomously monitors its own load statuses and automatically adjusts rate limiting parameters based on the relationship between working frequency and maximum frequency, eliminating the need for user intervention. This self-service approach ensures single-channel bandwidth requirements are met while removing the complexity of manual operations.
Solution Approach 2:
The patent establishes a feedback loop where load monitoring information is continuously collected, processed to determine appropriate rate limiting parameters, and then applied automatically. This closed-loop feedback system ensures that rate limiting adjustments are made in real-time based on actual chip conditions, maintaining bandwidth performance without user involvement.
3Use of energy by stationary object
If frequency adjustment is performed without automatic rate limiting, then power consumption is reduced, but packet loss occurs due to poor single-channel performance
Solution Approach 1:
The patent performs preliminary calculation of rate limiting parameters based on the ratio of current working frequency to maximum frequency before actual data transmission. By pre-establishing appropriate rate limiting values that correspond to the current frequency state, the system prevents packet loss from occurring, ensuring reliable transmission even when operating at reduced frequencies for power savings.
Solution Approach 2:
The patent implements continuous monitoring of load statuses and dynamic adjustment of rate limiting parameters in response to frequency changes. This feedback mechanism ensures that rate limiting is always appropriately configured for the current operating frequency, preventing packet loss while maintaining power-efficient operation.
Data Source
AI summary
The present invention discloses a method for reducing chip power consumption. The method includes: monitoring real-time load statuses of an input interface, an output interface, and an internal bus of a chip, and collecting load monitoring information; adjusting a working frequency of the chip according to the load monitoring information; and performing rate limiting for an information transmission rate of each channel of the chip according to the current working frequency of the chip. The method and apparatus for reducing chip power consumption according to the present invention solve a problem in the prior art that in a process of chip frequency modulation and power consumption reduction, it is difficult to implement constant rate limiting for a chip channel, thereby providing a feasible solution for reducing chip power consumption while maintaining constant rate limiting for the chip channel.