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🔬 A fast, interactive web-based viewer for performance profiles.
flamegraphflamegraphsperformance-profilingperformance-toolsperformance-visualizationprofilespeedscopestarred-jlfwong-repostarred-repowebgl
| dist | ||
| import | ||
| sample | ||
| .gitignore | ||
| aphrodite.d.ts | ||
| application.tsx | ||
| dev.html | ||
| flamechart-minimap-view.tsx | ||
| flamechart-style.ts | ||
| flamechart-view.tsx | ||
| flamechart.ts | ||
| index.html | ||
| math.ts | ||
| package-lock.json | ||
| package.json | ||
| profile.ts | ||
| README.md | ||
| rectangle-batch-renderer.ts | ||
| regl.d.ts | ||
| reloadable.tsx | ||
| reset.css | ||
| speedscope.tsx | ||
| style.ts | ||
| tsconfig.json | ||
| utils.ts | ||
speedscope
A high-performance interactive web-based viewer for [sampling profiles][0].
[0]: https://en.wikipedia.org/wiki/Profiling_(computer_programming)#Statistical_profilers
Usage
Visit https://jlfwong.github.io/speedscope/, then drop a profile onto the page.
Currently accepts the same folded stack format as the original FlameGraph scripts do: https://github.com/brendangregg/FlameGraph#2-fold-stacks.
Also accepts CPU profiles recorded with Chrome devtools if saved with a .json extension.
For example, try dropping this file onto the browser window: https://raw.githubusercontent.com/jlfwong/speedscope/master/sample/perf-vertx-stacks-01-collapsed-all.txt
To pan, you can either scroll or click and drag.
To zoom, hold cmd & scroll, or pinch-to-zoom.