Extract Cache Attribute Instruction for Register Resource Optimization
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Solution Overview
Problem
Existing computer systems face challenges in efficiently utilizing architecture resources, particularly general registers, which hinders the performance and functionality of software implementations.
Innovation Solution
The introduction of an extract cache attribute instruction that allows for the extraction and saving of cache attributes, such as topology, size, and set-associativity level, enabling improved resource management and performance optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If general registers are used for resource management, then software functionality is maintained, but performance and resource utilization efficiency deteriorate
Solution Approach 1:
The patent extracts cache attribute information (topology, size, set-associativity level) from the cache system and makes it accessible through a new instruction. This extraction allows software to obtain necessary cache information without consuming general registers for internal cache management, thereby improving resource utilization efficiency while maintaining software functionality.
Solution Approach 2:
The patent introduces a specialized cache attribute extraction mechanism that acts as an intermediary between the cache system and software. This intermediary provides detailed cache information through a dedicated instruction, eliminating the need for software to use general registers for cache management queries, thus resolving the contradiction between functionality and efficiency.
2Productivity
If detailed cache information is made accessible, then software performance improves, but architecture complexity increases
Solution Approach 1:
The patent segments the cache information retrieval function from general-purpose instructions by creating a specialized extract cache attribute instruction. This segmentation provides detailed cache information (topology, size, set-associativity) through a dedicated mechanism, improving software performance without significantly increasing overall architecture complexity as the instruction handles specific cache attributes rather than general computation.
3Productivity
If cache attributes are extracted and saved, then resource allocation optimization improves, but instruction execution time increases
Solution Approach 1:
The patent enables preliminary extraction of cache attributes that software can cache and reuse for multiple resource allocation decisions. By extracting cache topology, size, and set-associativity information once and storing it for subsequent operations, the system optimizes resource allocation efficiency while minimizing the time penalty of attribute extraction, as the attributes are extracted beforehand and reused.
Data Source
AI summary
A facility and cache machine instruction of a computer architecture for specifying a target cache cache-level and a target cache attribute of interest for obtaining a cache attribute of one or more target caches. The requested cache attribute of the target cache(s) is saved in a register.