Dynamic I/O Resource Pool Power Management
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Solution Overview
Problem
Current power management techniques for computer systems, particularly in server environments with multiple I/O interfaces, are inefficient as they manage each interface individually, leading to suboptimal power consumption and resource allocation.
Innovation Solution
Grouping resources into a pool allows for dynamic power management by assessing demand and bandwidth utilization, adjusting resource levels based on thresholds to optimize power usage across multiple interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If each interface is managed individually for power consumption, then power management is simple to implement, but overall power efficiency is suboptimal
Solution Approach 1:
Multiple individual I/O interfaces are merged into a single I/O resource pool that is managed collectively. The system aggregates the power management control of multiple interfaces into one unified pool, allowing centralized assessment of demand and coordinated adjustment of resource levels across all interfaces in the pool, thereby improving overall power efficiency while maintaining manageable complexity.
2Reliability
If resources are increased to meet peak demand, then system performance is maintained, but power consumption increases
Solution Approach 1:
The I/O resource pool implements dynamic power management where the level of resources is continuously adjusted based on real-time demand assessment. When demand exceeds a threshold, resources are increased to maintain performance; when demand is low, resources are decreased to reduce power consumption. This dynamic adaptation allows the system to maintain reliability while optimizing energy usage.
Solution Approach 2:
The system changes the operational parameters of I/O interfaces within the resource pool based on demand conditions. By adjusting parameters such as power levels, operational states, and resource allocation according to assessed demand and threshold comparisons, the system can maintain performance when needed while reducing power consumption during low-utilization periods.
3Loss of energy
If resources are decreased to reduce power consumption, then energy efficiency improves, but system performance may degrade
Solution Approach 1:
The system employs feedback mechanisms to continuously monitor demand on the I/O resource pool and adjust resource levels accordingly. By comparing assessed demand against threshold values, the system receives feedback on whether current resource levels are appropriate, and makes adjustments to maintain performance while optimizing energy consumption. This feedback loop prevents performance degradation by ensuring resources are sufficient when demand requires them.
Data Source
AI summary
Methods and apparatus for managing a pool of I/O interfaces associated with one or more I/O devices are disclosed. The I/O bandwidth utilization of the I/O devices is ascertained and compared with an upper threshold and a lower threshold. When the I/O bandwidth utilization is greater than the upper threshold, the resources provided by the pool of I/O interfaces are increased. When the I/O bandwidth utilization is less than the lower threshold, the resources provided by the pool of I/O interfaces are decreased.