Dynamic Stale Zone Sizing for Efficient Memory Transfers
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Solution Overview
Problem
In memory devices, static stale zone sizes lead to inefficient data storage and increased power consumption due to excess temporary data being transferred between memory blocks, reducing efficiency and causing unnecessary power usage.
Innovation Solution
The memory device dynamically adjusts the stale zone size based on available space and host data sizes, allowing for optimized data storage and reducing unnecessary data transfers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a static stale zone size is used, then the memory device structure is simple, but excess temporary data is transferred between memory blocks causing increased power consumption and reduced efficiency
Solution Approach 1:
The patent implements dynamic stale zone size adjustment by monitoring temporary data amounts and transferring control between host system and memory device. The stale zone size is no longer fixed but adapts based on actual data conditions, reducing unnecessary data transfers and power consumption while maintaining manageable complexity through automated threshold-based control
Solution Approach 2:
The patent changes the stale zone size parameter dynamically based on temporary data amounts and transfer thresholds. By adjusting this parameter according to actual usage patterns and host capabilities, the system optimizes power consumption without requiring complex manual configuration, as the adjustment follows predefined rules and thresholds
2Productivity
If a static stale zone size is used, then the system is easy to operate, but data transfer efficiency is reduced due to excess temporary data transfers
Solution Approach 1:
The patent implements feedback mechanisms where the memory device monitors the amount of temporary data and the effectiveness of stale zone size settings. Based on this feedback, the system automatically adjusts the stale zone size or initiates transfers to the host system, improving data transfer efficiency without requiring manual intervention or complex user configuration
Solution Approach 2:
The memory device performs self-service by automatically monitoring temporary data amounts, determining optimal stale zone sizes, and executing transfers when thresholds are exceeded. This autonomous operation improves productivity while maintaining ease of operation, as the system manages itself without requiring user expertise in zone configuration
3Productivity
If the stale zone size is increased to accommodate more temporary data, then fewer data transfers occur, but the available space for other data storage is reduced
Solution Approach 1:
The patent dynamically adjusts the stale zone size based on the actual amount of temporary data present. Rather than allocating a large fixed portion of memory to the stale zone, the system expands or contracts this zone according to real-time needs, improving transfer operation efficiency while preserving available memory space for other data when temporary data volume is low
Data Source
AI summary
Methods, systems, and devices for techniques for memory zone size adjustment are described. A memory system may dynamically update the size of a stale zone configured to store data written during a write burst or write booster mode. The stale zone may be part of a first block of memory cells, and may retain data during a transfer operation, such as flush operation. The size of the stale zone may be updated in response to the memory system receiving a command, such as an unmap command. The size of the stale zone may be determined based on an available zone size, an amount of data indicated in the command, an amount of data indicated in the command that has been transferred to a second block of memory cells, or a combination thereof.