Cache Memory Controller Merging Store Requests
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Solution Overview
Problem
Current cache memory systems face inefficiencies in handling cache updates, particularly when multiple store requests are directed to the same cache line, leading to increased power consumption and latency.
Innovation Solution
Implementing a method where the cache memory controller receives multiple store requests and concurrently stores the associated data units to a given cache line in a single cache update operation, if determined that all data units are designated for storage in that cache line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple store requests are handled separately in cache memory, then each request is processed individually ensuring data accuracy, but the number of cache update operations increases leading to higher power consumption and latency
Solution Approach 1:
The patent combines multiple store requests into a single cache update operation when they target the same cache line. The cache memory controller identifies multiple store requests designated for the same cache line and merges them into one atomic update operation, reducing the total number of cache update operations while maintaining data accuracy through proper handling of store request ordering and validation.
2Reliability
If multiple store requests are handled separately in cache memory, then each request is processed individually ensuring proper ordering, but the latency increases due to multiple sequential update operations
Solution Approach 1:
The patent merges multiple store requests into a single cache update operation to reduce latency. By combining requests that target the same cache line into one atomic operation, the system reduces the sequential processing time while maintaining proper request ordering through validation logic that ensures correctly ordered processing of merged requests.
3Reliability
If multiple store requests are handled separately in cache memory, then data consistency is maintained through individual updates, but the number of cache update operations increases reducing system efficiency
Solution Approach 1:
The patent merges multiple store requests into a single cache update operation to improve system efficiency. By reducing the number of cache update operations through intelligent merging of requests targeting the same cache line, the system achieves better throughput and productivity while maintaining data consistency through proper validation and ordering mechanisms.
Data Source
AI summary
A method of controlling a cache memory is disclosed. In an aspect, the method comprises receiving two or more store requests, wherein each store request is associated with a respective data unit for storage in the cache memory; and concurrently storing the respective data units associated with the two or more store requests to a given cache line of the cache memory in a single cache update operation based on determining that the respective data units associated with the two or more store requests are designated for storage in the given cache line.