Memory Controller Context Segregation for SSD Performance
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Solution Overview
Problem
Conventional solid-state drives (SSDs) face performance degradation due to memory operation interference when data of different contexts are placed in the same memory regions, leading to concurrent access issues and reduced data access performance.
Innovation Solution
The implementation of a data orchestrator that tags data access requests to segregate data into separate physical memory regions based on context, and combines data access requests to reduce protocol overhead, thereby minimizing interference and enhancing concurrent access efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If data of different contexts are placed in the same memory regions, then memory utilization is improved, but memory operation interference increases and concurrent access performance deteriorates
Solution Approach 1:
The patent divides the memory system into multiple independent memory regions, each dedicated to a specific context (e.g., different host systems, virtual machines, or applications). This segmentation prevents memory operation interference between different contexts while maintaining high memory utilization by fully utilizing each dedicated region.
2Ease of operation
If data access requests are processed individually, then request handling flexibility is improved, but protocol overhead increases and communication efficiency deteriorates
Solution Approach 1:
The patent merges multiple individual data access requests into a single batched request when they share the same memory region and access pattern. This combining approach maintains the flexibility to handle different request types while significantly reducing protocol overhead by transmitting a single set of control signals and addressing information for multiple data items.
Data Source
AI summary
A memory system having one or more memory components and a controller. The controller can receive access requests from a communication connection. The access requests can identify data items associated with the access requests, addresses of the data items, and contexts of the data items in which the data items are used for the access requests. The controller can identify separate memory regions for separate contexts respectively, determine placements of the data items in the separate memory regions based on the contexts of the data items, and determine a mapping between the addresses of the data items and memory locations that are within the separate memory regions corresponding to the contexts of the data items. The memory system stores store the data items at the memory locations separated by different memory regions according to different contexts.