Speed Racer
A performance runner that collects detailed traces and reports for JavaScript libraries and applications using Chrome.
What is Speed Racer?
Speedracer is a performance runner that profiles JavaScript code by running scripts in Chrome and collecting detailed performance traces and reports. It helps developers measure and analyze scripting, rendering, and painting metrics to identify performance bottlenecks in libraries or applications.
JavaScript developers and library authors who need to track performance regressions, benchmark code changes, or analyze runtime performance in a controlled environment.
It provides a structured, test-runner-like approach to performance profiling, generating both raw Chrome traces and summarized reports for easy integration into development workflows.
Overview
Collect performance metrics for your library/application.
Use Cases
Best For
- Tracking performance regressions in JavaScript libraries over time
- Benchmarking different implementations or algorithms for speed comparisons
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