Hot Page Logic for Tiered Memory Page Migration
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Solution Overview
Problem
Existing memory systems face inefficiencies in managing data access in tiered memory systems, leading to increased overhead and reduced reliability in processing high-capacity data with varying access frequencies.
Innovation Solution
A memory system with hot page logic that determines 'hot pages' based on input frequency and order, facilitating page migration operations between different memory types to optimize data access and reduce overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data access control is performed in a tiered memory system, then memory operation efficiency is improved, but system overhead increases
Solution Approach 1:
The memory system performs self-service by automatically monitoring access frequencies and patterns, identifying hot pages, and migrating them between memory tiers without external intervention. The memory controller autonomously tracks access metadata, determines migration candidates, and executes page migrations based on predefined policies, eliminating the need for operating system involvement and reducing system overhead while maintaining high memory operation efficiency
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring access frequencies and patterns of memory pages, using this information to dynamically identify hot pages that should be migrated to faster memory tiers. The feedback loop includes tracking access metadata, comparing it against migration thresholds, and automatically adjusting page placement decisions based on observed access behavior, thereby optimizing memory efficiency without increasing overhead
2Ease of operation
If operating system controls data access in tiered memory system, then data placement is managed, but reliability of data access control is reduced
Solution Approach 1:
The patent replaces the mechanical/software-based operating system control mechanism with a hardware-based memory controller that directly monitors access patterns and manages page migrations. By implementing hot page detection and migration logic within the memory controller's hardware circuitry, the system achieves more reliable and deterministic data access control compared to software-based OS management, while maintaining ease of operation through automated hardware-level decision-making
3Speed
If page migration operation is performed, then access speed to frequently used data is improved, but system complexity increases
Solution Approach 1:
The memory controller performs self-service by automatically tracking access frequencies, identifying hot pages, and executing migrations without external control. The system monitors its own operational characteristics, determines which pages require migration based on access patterns, and autonomously relocates them between memory tiers, thereby improving access speed to frequently used data while minimizing the complexity of migration management through self-directed hardware-level operations
Data Source
AI summary
A memory system and an electronic system including the same are provided. The memory system includes a memory device configured to receive data, and a hot page logic configured to receive an address for the data, determine that the address is for a hot page based on an input frequency and an input order of the address, and create hot page information including the address that was determined as associated with the hot page such that a page migration operation of the data is performed.