Cause-Tree Circuit Event Analysis with Buffer Metrics
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Solution Overview
Problem
Current event handling systems in integrated circuits face inefficiencies in analyzing performance metrics, such as service latency and pending events, due to the hierarchical priority structure and limited processing power allocation, which hinders dynamic adjustment and next-generation system design.
Innovation Solution
The integration of a cause-tree circuit with leaf nodes for event collection, middle nodes for coalescing, and a memory buffer for event buffering, along with a buffer analysis circuit to generate performance metrics like histograms and track waiting times, enables efficient event handling and performance analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hierarchical priority tree structure is used for event handling, then event prioritization and structured processing are improved, but performance analysis capability deteriorates due to lack of detailed metrics
Solution Approach 1:
A buffer analysis circuit is introduced as an intermediary component between the hierarchical priority tree and the event processing system. This circuit monitors events as they pass through the buffer, collects performance metrics such as service latency and pending event counts, and provides detailed statistics without disrupting the existing hierarchical event handling structure.
2Productivity
If processing power is allocated to handle multiple events, then event handling capability is improved, but analysis of performance metrics deteriorates due to limited processing resources
Solution Approach 1:
The buffer analysis circuit performs self-service by autonomously collecting and analyzing performance metrics without requiring additional processing power from the main event handling system. It independently monitors buffer fill levels, calculates service latency, and generates performance statistics, thereby enabling precise performance analysis while maintaining full event handling capacity.
3Productivity
If events are buffered for batch processing, then processing efficiency is improved, but real-time performance monitoring deteriorates
Solution Approach 1:
The buffer analysis circuit operates continuously alongside the batch processing system, maintaining uninterrupted monitoring of event performance metrics. As events are buffered and processed in batches, the analysis circuit continuously updates performance statistics including service latency and pending event counts, ensuring real-time performance visibility without interrupting the efficient batch processing operation.
Data Source
AI summary
An Integrated Circuit (IC) includes one or more functional hardware circuits, one or more processor cores, a cause-tree circuit, a memory buffer, and an analysis circuit. The processor cores are to handle events occurring in the functional hardware circuits. The cause-tree circuit includes leaf nodes, middle nodes and a root node. The leaf nodes are to collect the events from the one or more functional hardware circuits. The middle nodes are to coalesce the collected events and to deliver the events to the root node. The memory buffer is to buffer a plurality of the events delivered to the root node, so as to trigger the processor cores to handle the buffered events. The buffer analysis circuit is to analyze a performance of the cause-tree circuit based on the events buffered in the memory buffer.