Memory Priority Framework for Computing Systems
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Solution Overview
Problem
Current memory scheduling schemes in computing systems lack an efficient mechanism to prioritize memory access requests, leading to suboptimal performance and increased latency due to the lack of explicit priority assignment and propagation across different levels of the computing hierarchy.
Innovation Solution
A memory priority framework that assigns and propagates priority indicators across various levels of a computing system, allowing the memory controller to schedule memory access requests based on determined priorities, ensuring higher priority requests are executed before lower priority ones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a first-in-first-out scheduling scheme is used for memory requests, then the scheduling mechanism is simple, but memory access latency increases and system performance deteriorates
Solution Approach 1:
The patent changes the scheduling parameter from simple FIFO ordering to priority-based ordering. The memory controller now considers priority indicators associated with each memory request, allowing high-priority requests to be serviced before low-priority requests, thereby reducing memory access latency without significantly increasing system complexity
Solution Approach 2:
The scheduling mechanism transitions from a static FIFO approach to a dynamic priority-based approach. The memory controller dynamically adjusts the servicing order of memory requests based on their priority indicators, enabling the system to adapt to different performance requirements and reduce latency for critical operations
2Productivity
If priority indicators are propagated across all levels of the computing hierarchy, then memory access prioritization is improved, but system complexity increases
Solution Approach 1:
The patent uses the memory controller as an intermediary that receives and processes priority indicators from higher levels of the computing hierarchy. The memory controller maintains the priority information and uses it to schedule memory requests, thereby improving memory access efficiency without requiring complex priority propagation mechanisms at every level of the system
Solution Approach 2:
The patent extracts the priority indication function from the complex hierarchy of computing levels and concentrates it at the memory controller level. The memory controller receives priority indicators and handles the scheduling decisions, simplifying the overall system architecture while maintaining the ability to prioritize memory requests effectively
Data Source
AI summary
Proving for a framework for propagating priorities to a memory subsystem in a computing system environment is disclosed herein. By way of example, a memory access handler is provided for managing memory access requests and determining associated priorities. The memory access handler includes logic configured for propagating memory requests and the associated priorities to lower levels of a computer hierarchy. A memory subsystem receives the memory access requests and the priorities.