SSD Processing Bandwidth Allocation for Memory Management
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Solution Overview
Problem
Existing devices face challenges in efficiently balancing processing bandwidth allocation during steady-state workloads and transitions, leading to inefficiencies in memory usage and performance, particularly in solid-state drives (SSDs), due to inadequate management of free memory and garbage collection processes.
Innovation Solution
The implementation of a method and device that dynamically adjusts processing bandwidth based on the used amount of free memory, allocating resources to process host instructions and perform garbage collection, minimizing the need for spare memory by using configurable thresholds to manage workload transitions and transitions in processing bandwidth allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If processing bandwidth is allocated to execute host instructions, then device performance is improved, but the amount of free memory decreases
Solution Approach 1:
The patent implements dynamic processing bandwidth allocation that adjusts the proportion of bandwidth dedicated to host instructions versus garbage collection based on the current amount of free memory. When free memory is abundant, more bandwidth is allocated to host instructions to maximize performance. When free memory becomes scarce, the allocation shifts to prioritize garbage collection that replenishes free memory, thus dynamically resolving the contradiction between performance and memory availability.
Solution Approach 2:
The system changes the parameter of processing bandwidth allocation ratios based on the state of free memory. By monitoring free memory levels and adjusting the bandwidth distribution parameter between instruction execution and garbage collection, the system optimizes the trade-off between maintaining high performance and preserving sufficient free memory for future operations.
2Quantity of substance
If garbage collection is performed to increase free memory, then the amount of free memory is improved, but device performance decreases
Solution Approach 1:
The patent employs dynamic bandwidth allocation that adjusts the proportion of processing bandwidth dedicated to garbage collection versus host instruction execution based on current free memory levels. When free memory is abundant, the system reduces garbage collection bandwidth allocation to maximize performance. When free memory becomes scarce, it increases garbage collection bandwidth to replenish free memory, thus dynamically resolving the contradiction between memory availability and performance.
Solution Approach 2:
The system modifies the processing bandwidth allocation parameter for garbage collection based on the state of free memory. By changing this parameter dynamically - reducing it when free memory is high and increasing it when free memory is low - the system optimizes the balance between maintaining performance and ensuring sufficient free memory for future host operations.
3Quantity of substance
If minimum effective spare memory is minimized, then memory efficiency is improved, but processing bandwidth allocation becomes more complex
Solution Approach 1:
The patent implements a dynamic bandwidth allocation mechanism that automatically adjusts processing bandwidth distribution between host instructions and garbage collection based on real-time free memory monitoring. This dynamic approach minimizes the need for static spare memory buffers while managing the complexity through automated state-based decision logic, allowing the system to maintain high memory efficiency without requiring overly complex manual management.
Data Source
AI summary
A device and related method, the device including memory, communications circuitry, and processing circuitry. The processing circuitry allocates processing bandwidth of the device to process the received instructions and executes the instructions based on the allocated processing bandwidth using a first amount of free memory. If the used first amount of free memory is at least a first threshold, processing circuitry reduces the allocated processing bandwidth to process the received instructions based on the used first amount of free memory and continues to execute the instructions based on the reduced allocated processing bandwidth using a second amount of free memory of the device. If the used second amount of free memory is at least a second threshold, processing circuitry further reduces the allocated processing bandwidth to process the received instructions based on the used second amount of free memory, and allocates processing bandwidth to perform garbage collection of the memory.