Context Specifier Override for Memory Access Latency
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Solution Overview
Problem
Current computing systems face inefficiencies in memory access due to the tradeoff between storage capacity and access speed, where fast memories have limited capacity and large-capacity memories have slow access speeds, and existing virtual and physical address translation methods do not effectively optimize performance across different memory types.
Innovation Solution
The method involves overriding attributes in the page table data structure and translation lookaside buffer (TLB) using a context specifier to directly translate virtual addresses to physical addresses, bypassing traditional page table and TLB mappings, thereby optimizing memory access by allowing context-specific overrides and eliminating the need for TLB hits and page table walks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional page table and TLB translation methods are used, then address translation is performed according to standard virtual memory protocols, but memory access latency increases and performance is reduced due to the need for TLB hits and page table walks
Solution Approach 1:
The patent extracts the address translation process from the traditional page table and TLB hierarchy by introducing context specifiers that directly override translation attributes. This allows the system to bypass the conventional translation path and achieve faster memory access without requiring TLB hits or page table walks, directly resolving the latency vs. efficiency contradiction
Solution Approach 2:
The patent applies preliminary action by pre-configuring context specifiers with translation attributes before memory access occurs. These context specifiers contain pre-determined override values for page table attributes, allowing the system to immediately apply optimized translation parameters without real-time computation, thereby reducing access latency while maintaining translation accuracy
2Productivity
If context specifiers with override attributes are implemented, then memory access performance is optimized by bypassing traditional translation mechanisms, but system complexity increases due to the need for context specifier management
Solution Approach 1:
The patent applies universality by designing context specifiers as multi-functional structures that serve both as address translation identifiers and as carriers for override attributes. This single structure performs multiple functions (context identification, attribute storage, and translation control), reducing the need for separate management mechanisms and thereby limiting the increase in system complexity while achieving improved memory access efficiency
Data Source
AI summary
A memory access technique, in accordance with one embodiment of the present invention, includes selectively overriding attributes contained in a translation lookaside buffer or page table data structure with attributes contained in a context specifier.