Memory-System Debug Interface for Selective Error Logging
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Solution Overview
Problem
Debugging performance issues and errors in memory systems is challenging due to the complexity and density of these systems, leading to significant resource consumption and time, as the host system often fails to receive information about errors or performance issues, making it difficult to determine their cause.
Innovation Solution
A debug interface is provided that allows the host system to flexibly trigger logging and retrieval of debugging information using commands, enabling the memory system to store and filter specific information in a debug log, and subsequently retrieve it based on host system parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the memory system operates with high complexity and density to improve storage capacity, then storage performance is improved, but debugging difficulty increases and error information becomes harder to obtain
Solution Approach 1:
A debug interface is introduced as an intermediary component between the host system and memory system. This interface includes a debug log that captures and stores error information, performance data, and operational states from various memory components. The debug interface mediates the complex internal operations by providing a standardized access point that simplifies debugging without affecting the high-density storage operations.
Solution Approach 2:
The debug interface implements feedback mechanisms by continuously monitoring memory operations and storing results in a debug log. Error information, performance metrics, and operational states are captured and fed back to the host system through the debug interface. This feedback loop enables real-time debugging and diagnosis without disrupting the high-capacity storage operations.
2Measurement precision
If comprehensive error monitoring is implemented to improve diagnostic accuracy, then debugging performance is improved, but resource consumption increases
Solution Approach 1:
The debug interface implements partial monitoring by selectively capturing specific error conditions, performance metrics, and operational states that are most relevant for debugging. Rather than monitoring all possible parameters continuously, the system captures only the essential debug information needed for effective diagnosis, thereby reducing resource consumption while maintaining adequate diagnostic accuracy.
Solution Approach 2:
The debug interface extracts only the necessary error information and performance data from the complex memory operations. By separating the debug logging function from the main storage operations, the system captures only the relevant debug information needed for diagnosis, avoiding the resource overhead of comprehensive continuous monitoring of all memory operations.
3Productivity
If a debug interface is added to enable error information retrieval, then debugging performance is improved, but device complexity increases
Solution Approach 1:
The debug interface is designed with multi-functionality to handle various debugging tasks through a single unified interface. It can retrieve error information, performance data, and operational states using standardized commands, eliminating the need for multiple separate debugging interfaces. This universal approach improves debugging performance while minimizing the increase in overall device complexity.
Solution Approach 2:
The debug interface merges multiple debugging functions into a single integrated component. Error logging, performance monitoring, and diagnostic information retrieval are combined in one interface that communicates through standardized commands with the host system. This consolidation improves debugging efficiency while avoiding the complexity overhead of multiple separate debugging mechanisms.
Data Source
AI summary
Methods, systems, and devices for a debug interface between a host system and a memory system are described. The memory system may receive, from the host system, a first command triggering debug logging at the memory system. In response to the first command, the memory system may store debugging information in a debug log for a specific set of commands. For example, the debugging information stored by the memory system may be associated with one or more parameters indicated by the first command. The memory system may receive a second command, from the host system, requesting a portion of information from the debug log. The portion of information may include performance data, error information, or the like stored in the debug log (e.g., in response to the first command). The memory system may send the requested portion of information to the host system in response to the second command.