TL;DR
This paper presents an interactive static performance analysis tool integrated into VSCode, enabling developers to identify and reason about performance issues early in the development process without runtime profiling.
Contribution
The authors develop a novel VSCode extension that visualizes static performance analysis results from Infer with interactive features for real-time code feedback.
Findings
Low overhead in the development workflow
Effective localization of performance bugs in real projects
Enhanced developer understanding of performance issues
Abstract
Detecting performance issues due to suboptimal code during the development process can be a daunting task, especially when it comes to localizing them after noticing performance degradation after deployment. Static analysis has the potential to provide early feedback on performance problems to developers without having to run profilers with expensive (and often unavailable) performance tests. We develop a VSCode tool that integrates the static performance analysis results from Infer via code annotations and decorations (surfacing complexity analysis results in context) and side panel views showing details and overviews (enabling explainability of the results). Additionally, we design our system for interactivity to allow for more responsiveness to code changes as they happen. We evaluate the efficacy of our tool by measuring the overhead that the static performance analysis integration…
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