Processor Card Power Management in Network Test Chassis
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Solution Overview
Problem
Network test systems often consume significant power due to processor-intensive tasks, even when idle, leading to substantial energy wastage and increased operational costs.
Innovation Solution
Implementing a method to detect events and statuses associated with processor cards in a network test equipment chassis, using a chassis manager module to apply power management rules, such as reducing or escalating power consumption based on predefined conditions, to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If processor cards are kept powered during idle state, then system readiness is maintained, but power consumption increases significantly
Solution Approach 1:
The system dynamically adjusts the power state of processor cards based on real-time monitoring of system activity and predicted workload. Processor cards transition between active, standby, and powered-off states according to current and forecasted demand, optimizing the balance between readiness and energy consumption.
Solution Approach 2:
The system performs preliminary actions by predicting future workload requirements and proactively powering up processor cards before they are needed. This ensures rapid system readiness when traffic spikes occur while minimizing idle power consumption during low-activity periods.
2Use of energy by moving object
If processor cards are powered down during idle periods, then power consumption is reduced, but system response time increases
Solution Approach 1:
The system predicts upcoming workload increases and proactively powers up processor cards before they are actually needed. This preliminary action ensures that when traffic spikes occur, the system can respond immediately without the delay of cold startup, thus minimizing response time while still achieving power savings during idle periods.
Solution Approach 2:
The system implements dynamic power state transitions with multiple intermediate states (active, standby, powered-off). During predicted idle periods, cards are transitioned to powered-off state for maximum savings. During transitional periods with uncertain workload, cards are kept in standby state with minimal power consumption but rapid wake-up capability, thus balancing power savings with response time requirements.
3Productivity
If multiple processor cards are maintained in active state, then processing capacity is available, but cooling requirements increase
Solution Approach 1:
The system dynamically adjusts the number of active processor cards based on real-time monitoring of system workload and thermal conditions. When workload is low or cooling capacity is constrained, fewer cards remain active or transition to standby states, reducing heat generation. When workload increases or cooling is sufficient, more cards are activated to maintain processing capacity.
Solution Approach 2:
The system changes operational parameters by adjusting the power state and operational frequency of processor cards based on thermal conditions. During high-temperature periods or when cooling is constrained, cards operate at reduced frequency or in standby mode. When cooling capacity is adequate and workload requires it, cards operate at full capacity, thus optimizing the balance between productivity and thermal management.
Data Source
AI summary
Methods, systems, and computer readable media for controlling processor card power consumption are disclosed. In one example, the method is conducted in a network test equipment chassis that includes a plurality of processor cards that implements network testing functions. The method includes detecting an event or status associated with one of the plurality of processor cards and determining whether the event or status satisfies a condition of at least one power management rule. In response to determining that the event or status satisfies a condition of the at least one power management rule, the method further includes adjusting power consumption of the processor card in the network test equipment in accordance with the at least one power management rule.