Commanded Memory-System States for Adaptive Resource Allocation
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Solution Overview
Problem
Memory systems lack the ability to adapt resource allocation to changing operating conditions of host systems, leading to suboptimal performance in terms of throughput, latency, error control, and power consumption.
Innovation Solution
Implementing commanded device states in memory systems that allow for adaptable resource allocation based on host system parameters, enabling dynamic balancing of performance characteristics such as throughput, latency, error control, and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If memory systems use static resource allocation, then device complexity is reduced, but adaptability to changing operating conditions deteriorates
Solution Approach 1:
The patent implements dynamic resource allocation by introducing multiple device states (first device state and second device state) that the memory system can transition between based on operating conditions. The controller dynamically adjusts resource allocation parameters such as read channel count, write channel count, and ECC configuration depending on whether the system is in a performance-oriented state or a power-efficient state, thereby achieving adaptability without requiring completely complex decision-making logic.
Solution Approach 2:
The patent changes operational parameters to achieve different device states. Specifically, it modifies resource allocation parameters including the number of active read channels, number of active write channels, and ECC (error correction code) configuration. By providing commands to transition between device states, the system adjusts these parameters dynamically - for example, using more channels and stronger ECC in the first device state for high performance, and fewer channels with reduced ECC in the second device state for power efficiency.
2Productivity
If memory systems allocate more resources for high performance, then throughput and latency improve, but power consumption increases
Solution Approach 1:
The patent implements dynamic resource allocation by introducing multiple device states (first device state and second device state) that the memory system can transition between based on operating conditions. The controller dynamically adjusts resource allocation parameters such as read channel count, write channel count, and ECC configuration depending on whether the system is in a performance-oriented state or a power-efficient state, thereby achieving adaptability without requiring completely complex decision-making logic.
Solution Approach 2:
The patent changes operational parameters to achieve different device states. Specifically, it modifies resource allocation parameters including the number of active read channels, number of active write channels, and ECC (error correction code) configuration. By providing commands to transition between device states, the system adjusts these parameters dynamically - for example, using more channels and stronger ECC in the first device state for high performance, and fewer channels with reduced ECC in the second device state for power efficiency.
3Use of energy by moving object
If memory systems reduce resource allocation for power efficiency, then power consumption decreases, but throughput and latency performance deteriorate
Solution Approach 1:
The patent implements dynamic resource allocation by introducing multiple device states (first device state and second device state) that the memory system can transition between based on operating conditions. The controller dynamically adjusts resource allocation parameters such as read channel count, write channel count, and ECC configuration depending on whether the system is in a performance-oriented state or a power-efficient state, thereby achieving adaptability without requiring completely complex decision-making logic.
Solution Approach 2:
The patent changes operational parameters to achieve different device states. Specifically, it modifies resource allocation parameters including the number of active read channels, number of active write channels, and ECC (error correction code) configuration. By providing commands to transition between device states, the system adjusts these parameters dynamically - for example, using more channels and stronger ECC in the first device state for high performance, and fewer channels with reduced ECC in the second device state for power efficiency.
4Reliability
If memory systems increase error control resources, then data reliability improves, but throughput performance decreases
Solution Approach 1:
The patent changes operational parameters to achieve different device states. Specifically, it modifies resource allocation parameters including the number of active read channels, number of active write channels, and ECC (error correction code) configuration. By providing commands to transition between device states, the system adjusts these parameters dynamically - for example, using more channels and stronger ECC in the first device state for high performance, and fewer channels with reduced ECC in the second device state for power efficiency.
Data Source
AI summary
Methods, systems, and devices for commanded device states for a memory system are described. For example, a memory system may be configured with different device states that are each associated with a respective allocation of resources (e.g., feature sets) for operations of the memory system. Resource allocations corresponding to the different device states may be associated with different combinations of memory management configurations, error control configurations, trim parameters, degrees of parallelism, or endurance configurations, among other parameters of the memory system, which may support different tradeoffs between performance characteristics of the memory system. A host system may be configured to evaluate various parameters of operating the host system, and to transmit commands for a memory system to enter a desired device state of the memory system.