Memory System Copy Commands for Lower Data Transfer Latency
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Solution Overview
Problem
Existing memory systems incur high latency and reduced performance due to repeated read and write operations and external data transmission when copying data between addresses, leading to increased processing overhead and signaling overhead.
Innovation Solution
A copy command is implemented within the memory system to associate data with a second address without external data transmission, using internal operations such as reading, writing, and updating mapping tables to maintain data associations, thereby reducing latency and overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If data is copied using traditional read-write operations with external transmission, then data can be transferred between addresses, but latency increases and system performance decreases
Solution Approach 1:
The patent extracts the data copying operation from the external host system and relocates it entirely within the memory system. The copy command is processed internally by the memory controller, which directly transfers data between memory locations without involving the host system. This extraction eliminates the need for external read-write cycles and significantly reduces latency while improving overall system performance.
2Ease of operation
If data is transmitted externally during copy operations, then data can be moved between addresses, but processing overhead and signaling overhead increase
Solution Approach 1:
The patent merges the copy operation with the memory system's internal data pathways and control logic. The copy command utilizes existing internal buses and controllers already present in the memory system, combining multiple functions (data transfer, address management, error handling) into a single integrated operation. This merging eliminates redundant processing steps and signaling overhead that would occur with separate external read and write operations.
Data Source
AI summary
Methods, systems, and devices for copy command for a memory system are described. A method may include storing, within a memory system, data associated with one or more first addresses within an address space. The method may further include receiving a copy command for the data from a host for the memory system. The memory system may associate, in response to the copy command, the data with one or more second addresses within the address space.