Memory Control Circuit Dynamic Interruption Transmission
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Solution Overview
Problem
Current memory storage devices face inefficiencies due to frequent switching between host command processing and checking procedures, leading to increased system loading and reduced data processing performance, especially when command queue depth is shallow or response timeouts occur.
Innovation Solution
A memory management method that dynamically determines the transmission mode of interruption messages based on command processing information, allowing for optimal transmission frequency regardless of queue depth, thereby avoiding response timeouts and reducing unnecessary procedure switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the memory storage device transmits interruption messages after each operation command completion, then the host system can respond quickly to commands, but the host system must frequently switch between command processing and checking procedures, increasing system loading
Solution Approach 1:
The patent applies dynamics by making the interruption message transmission mode adjustable and adaptive. The system dynamically switches between first transmission mode (transmitting after each command completion) and second transmission mode (transmitting after multiple commands or timeout) based on command queue depth and system state, optimizing both response speed and processing efficiency under different conditions
Solution Approach 2:
The patent changes the transmission parameter (interruption message frequency/timing) based on command queue depth and system state. When queue depth is shallow, it uses first transmission mode for quick response; when queue depth is deep, it switches to second transmission mode to reduce switching frequency, thereby adapting the system behavior to current load conditions
2Productivity
If the memory storage device reduces interruption message transmission frequency to lower system loading, then the host system processing efficiency improves, but the command queue depth may become shallow and reaction efficiency decreases
Solution Approach 1:
The patent implements feedback by monitoring command queue depth and using it to adjust the interruption message transmission mode. The system continuously checks the queue depth and switches between transmission modes accordingly, ensuring that the transmission frequency adapts to the current system state and maintains optimal reaction efficiency
Solution Approach 2:
The system dynamically adjusts the interruption message transmission strategy based on real-time queue depth monitoring. When queue depth indicates shallow workload, it increases transmission frequency to maintain reaction efficiency; when queue depth is deep, it reduces frequency to improve processing efficiency, creating a dynamic balance
3Extent of automation
If the host system frequently switches between command processing and checking procedures, then it can handle more commands, but the system loading increases and data processing performance decreases
Solution Approach 1:
The patent applies partial action by selectively transmitting interruption messages based on command queue depth. Instead of transmitting after every single command completion (which would cause excessive switching), it transmits after a subset of commands or based on timeout conditions, reducing the frequency of procedure switches while still maintaining adequate system responsiveness
Data Source
AI summary
A memory management method for a memory storage device including a rewritable non-volatile memory module is provided according to an exemplary embodiment of the disclosure. The method includes: receiving a first command and performing a first operation corresponding to the first command; transmitting a completion message to a host system corresponding to a completion of the first operation; detecting command processing information; determining a transmission mode of an interruption message according to the command processing information; and transmitting the interruption message to the host system according to the transmission mode.