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Collect performance metrics for your library/application.
Speed Racer is a performance runner, like a test runner, but for performance 🏎. It runs scripts (races) in Chrome (headlessly if possible) and produces detailed traces and reports on scripting, rendering and painting.
Speed Racer needs Google Chrome to run your files. It will run it headlessly if it finds a proper intallation of Canary (Mac OS X only for now).
Speed Racer comes with two commands right now:
... read the whole story at github.com.
run: collect performance metrics and save them.
display: display a summary of generated reports.