Managed Memory Power-Off Timing for Background Operation Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Memory systems are unable to fully utilize the time provided after a power off notification due to unawareness of the duration until power is deactivated, leading to degraded performance from concurrent background operations.
Innovation Solution
The host system provides a power off notification with a time value indicating the duration until power is deactivated, allowing the memory system to plan and perform background operations effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the memory system performs background operations concurrently, then data maintenance operations can be executed, but the performance is degraded due to lack of time awareness
Solution Approach 1:
The host system provides feedback about the remaining time until power off through a notification mechanism. The memory system uses this feedback to adjust its background operation scheduling, allowing it to execute maintenance tasks without degrading performance when time is limited.
Solution Approach 2:
The memory system performs preliminary actions by scheduling background operations in advance based on the time budget provided by the host system. This allows data maintenance to be completed before power off without interfering with critical performance operations.
2Reliability
If the memory system executes background operations, then data maintenance is improved, but interruptions occur when power is deactivated
Solution Approach 1:
The memory system executes background operations preliminarily within the time budget before power is deactivated. The host system notifies the memory system of the time remaining, allowing it to complete maintenance tasks in advance and avoid interruptions.
Solution Approach 2:
The memory system dynamically adjusts its background operation execution based on the time budget provided by the host system. When time is abundant, more maintenance operations can be executed; when time is limited, the system prioritizes critical operations to avoid interruptions.
3Productivity
If the host system provides time information in power off notification, then the memory system can optimize operations, but the notification mechanism becomes more complex
Solution Approach 1:
The power off notification mechanism is enhanced to serve multiple functions: it not only signals the intent to power off but also conveys the time budget for background operations. This multi-functional notification allows the memory system to optimize its operations without requiring separate communication protocols.
Data Source
AI summary
Methods, systems, and devices for advanced power off notification for managed memory are described. An apparatus may include a memory array comprising a plurality of memory cells and a controller coupled with the memory array. The controller may be configured to receive a notification indicating a transition from a first state of the memory array to a second state of the memory array. The notification may include a value, the value comprising a plurality of bits and corresponding to a minimum duration remaining until a power supply of the memory array is deactivated. The controller may also execute a plurality of operations according to an order determined based at least in part on a parameter associated with the memory array and receiving the notification comprising the value.