SSD Clock Frequency Control for Low-Queue Latency
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Solution Overview
Problem
Existing storage device systems face inefficiencies in latency management due to low task storage workload, leading to increased latency and suboptimal utilization of parallel processing capabilities.
Innovation Solution
A control circuitry dynamically adjusts the operating clock frequency of a circuit based on workload values, increasing frequency during low workload to reduce latency and leveraging parallelism effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the circuit operates at a lower clock frequency to save power, then energy consumption is reduced, but latency increases when task storage workload is low
Solution Approach 1:
The patent implements dynamic clock frequency adjustment by monitoring task storage workload and adapting the circuit operating frequency in real-time. When workload is low, the frequency increases to reduce latency; when workload is high, the frequency decreases to save power. This dynamic adaptation resolves the contradiction between power consumption and latency.
Solution Approach 2:
The system changes the operating parameter (clock frequency) based on workload conditions. The control circuitry adjusts the clock frequency parameter dynamically - increasing it when task storage contains fewer commands to reduce latency, and decreasing it when task storage is full to reduce power consumption, thus resolving the parameter-based trade-off.
2Loss of time
If the circuit operates at a higher clock frequency to reduce latency, then latency is reduced, but power consumption increases
Solution Approach 1:
The system dynamically adjusts clock frequency based on real-time workload monitoring. Instead of operating at a fixed high frequency, the circuit adapts its frequency to actual needs - running fast only when necessary to meet latency requirements, and slowing down when high performance is not needed, thus reducing unnecessary power consumption.
Solution Approach 2:
The operating frequency parameter is changed based on workload conditions. The control circuitry implements parameter adaptation by setting higher frequencies when latency is critical (low workload) and lower frequencies when power efficiency is more important (high workload), resolving the latency-power trade-off.
3Device complexity
If the circuit operates at a fixed clock frequency, then system simplicity is maintained, but operational efficiency decreases under varying workload conditions
Solution Approach 1:
The patent introduces dynamic frequency adjustment capability that adds complexity only when needed. The control circuitry monitors task storage workload and adjusts frequency accordingly, providing operational efficiency benefits without requiring complex external control - the system self-regulates based on internal workload state.
Solution Approach 2:
The circuit performs self-adjustment of clock frequency based on its own workload state. The control circuitry autonomously monitors task storage contents and modifies operating frequency without external intervention, improving operational efficiency while maintaining relatively simple control architecture through self-service operation.
Data Source
AI summary
Systems and methods are provided for dynamically changing the operating clock frequency of a circuit. Control circuitry determines a first workload value for a circuit operating at a first clock frequency. Control circuitry then detect a second workload value for the circuit, which is less than the first workload value. When the control circuitry detects the second workload value, the control circuitry calculates a second clock frequency which is greater than the first clock frequency. The control circuitry then causes the circuit to operate at the second clock frequency.