Concurrent Data Stripe Error Correction via Segmented Circuits
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Solution Overview
Problem
Current data stripe protection schemes in memory systems incur significant latencies due to the inability to process error correction and detection requests concurrently, especially when dealing with multiple strips of the same parity stripe, which affects overall system performance.
Innovation Solution
Implementing a data stripe protection scheme that allows for concurrent processing of read/write and recovery requests across multiple strips of the same parity stripe, utilizing a Compute Express Link (CXL) compliant memory system with error management components and control circuitry to perform multi-level error correction and detection operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If serial processing of error correction and detection requests is used, then system complexity is reduced, but latency increases significantly
Solution Approach 1:
The patent divides the processing of error correction and detection requests into separate handling circuits that can operate independently and concurrently. Each circuit processes specific types of requests (error correction vs. detection) separately, allowing parallel execution without requiring complex coordination logic, thus reducing latency while maintaining manageable system complexity.
Solution Approach 2:
The patent implements dynamic request routing that adapts based on the type of request received. The system dynamically selects which handling circuit to use based on whether the request is for error correction or detection, enabling flexible concurrent processing without requiring a static, overly complex processing architecture.
2Productivity
If concurrent processing of read/write and recovery requests is implemented, then productivity increases, but device complexity increases
Solution Approach 1:
The patent segments the memory system into multiple independent handling circuits, each dedicated to processing specific types of requests (read/write operations versus recovery operations). This segmentation allows concurrent processing of different request types without requiring complex inter-circuit coordination, thereby increasing productivity while keeping each circuit relatively simple.
Solution Approach 2:
The handling circuits are designed with universal capabilities to manage multiple aspects of memory operations through standardized interfaces and protocols. Each circuit can handle various operations within its domain using common control mechanisms, reducing overall system complexity while enabling concurrent processing across multiple circuits.
Data Source
AI summary
Systems, apparatuses, and methods related to data stripe protection are described. An error management component can process multiple read/write/recovery requests concurrently. When read/write requests are to be processed on respective strips of a stripe, the error management component can process (e.g., concurrently) the read/write requests to determine a quantity of errors within each one of the strips and the determined quantity can be used to further determine whether to access other memory portions to correct the determined quantity.