Memory Controller Map Entry Merging for I/O Overhead Reduction
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Solution Overview
Problem
Current memory systems face inefficiencies in managing and storing map information due to overlapping or contiguous logical addresses, leading to increased overheads in data input/output operations and reduced performance.
Innovation Solution
A memory system and method that dynamically allocate data paths based on component usage, combining or merging map information to reduce internal operations, using a controller to configure and manage map tables by searching, merging, and inserting map entries efficiently, and reconfiguring the map table in response to trim commands to optimize storage and retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If map information is stored separately for each logical address, then address mapping accuracy is maintained, but the number of operations for reading, modifying, or storing map information increases
Solution Approach 1:
The patent merges multiple map entries that correspond to contiguous or overlapping logical addresses into a single consolidated map entry. This reduces the total number of map entries stored in memory, thereby decreasing the number of operations required to read, modify, or store map information while maintaining address mapping accuracy through proper tracking of logical address ranges.
2Quantity of substance
If map table is reconfigured frequently to maintain optimal storage, then storage efficiency is improved, but overhead in data input/output operations increases
Solution Approach 1:
The patent performs preliminary consolidation of map entries during idle periods or background operations, preparing optimized map table configurations in advance. This allows the system to maintain storage efficiency without frequently interrupting data input/output operations, thereby reducing operation overhead while achieving optimal storage utilization.
3Adaptability or versatility
If dynamic path allocation is implemented based on component usage, then resource utilization is optimized, but system complexity increases
Solution Approach 1:
The patent implements dynamic path allocation that automatically adjusts data paths based on real-time component usage and workload characteristics. The system monitors usage patterns and dynamically routes data through optimal paths, achieving optimized resource utilization while managing complexity through automated decision-making algorithms and predefined routing rules.
Data Source
AI summary
A controller configures a map table including a map entry associating different address schemes with each other. The controller is configured, for performing map table configuration, to find a target map entry among previous map entries in the map table, merge the current map entry into the target map entry to generate a merged map entry when the target map entry is found, and store the merged map entry in the map table. The target map entry and a current map entry include at least some information which is overlapped.