Animated Multi-Thread Execution Visualization for Debugging
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Solution Overview
Problem
Debugging multi-threaded software programs is challenging due to their non-deterministic nature, as different executions with the same input can produce varying outcomes, making it difficult to identify performance and correctness issues through traditional textual representations.
Innovation Solution
A visualization system that uses chunk-based memory race recording to generate animated graphical representations of multi-threaded software program executions, allowing developers to interactively explore performance and correctness features by displaying all concurrently executing threads in the same context, with features like zooming, speed control, and rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional textual representations are used to debug multi-threaded programs, then the implementation is simple, but it is difficult to identify performance and correctness issues due to non-deterministic execution outcomes
Solution Approach 1:
The patent creates a visual copy of the program execution by generating animated graphical representations that replicate the behavioral patterns of multi-threaded executions. These visual copies allow developers to observe execution patterns, memory access interleavings, and synchronization events without running the actual complex multi-threaded program multiple times, thereby improving debugging accuracy while managing complexity through abstraction
Solution Approach 2:
The patent transforms one-dimensional textual execution logs into two-dimensional animated graphical representations with multiple visual dimensions. The visualization system adds spatial and temporal dimensions to execution data, allowing developers to perceive concurrency patterns, thread interactions, and memory access patterns that are invisible in traditional textual formats, thus resolving the contradiction between simplicity and debugging accuracy
2Productivity
If chunk-based memory race recording is used to track memory access interleavings, then memory operations are tracked efficiently, but the data requires complex processing to visualize
Solution Approach 1:
The patent applies segmentation by dividing the visualization of memory access patterns into manageable chunks that correspond to the recorded memory operations. Each visual element in the animation represents a segmented portion of the execution, allowing the complex processed data to be presented in discrete, easily interpretable units that maintain debugging efficiency while reducing perceived complexity
Solution Approach 2:
The patent introduces an intermediary processing layer that automatically transforms chunk-based memory race recording data into animated graphical representations. This intermediary system handles the complex data processing requirements by implementing automated algorithms that convert raw memory access interleaving data into meaningful visual patterns, thereby maintaining high debugging efficiency while managing processing complexity through automation
3Reliability
If all concurrently executing threads are displayed in the same context with interactive features, then performance and correctness issues become visible, but the interface complexity increases
Solution Approach 1:
The patent implements dynamic visualization where the graphical representation adapts its display characteristics based on user interaction and execution state. The animated display can be paused, rewound, fast-forwarded, and zoomed, allowing developers to control the information flow dynamically. This dynamic approach maintains program correctness identification by allowing detailed inspection when needed while preserving ease of operation through user-controlled pacing and information revelation
Solution Approach 2:
The patent uses color coding to differentiate threads, memory access types, and synchronization events in the visual display. By encoding multiple dimensions of execution data into visual color properties, the system presents comprehensive thread interaction information in an easily distinguishable format that improves program correctness identification without significantly increasing interface complexity, as colors provide intuitive visual cues rather than requiring complex controls
Data Source
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AI summary
A system graphically visualizes performance and/or correctness features of a recorded execution of a multi-threaded software program. The system may process chunk-based information recorded during an execution of the multi-threaded program, prepare a graphical visualization of the recorded information, and display the graphical visualization on a display in an animated fashion. The system may allow a viewer to interactively control the display of the animated graphical visualization.