speedscope
https://github.com/jlfwong/speedscope
TypeScript
🔬 A fast, interactive web-based viewer for performance profiles.
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- Issues
- Allow accept header to be specified alongside profileURL
- Incorrect rendering with long traces (thousands of seconds)
- xcode 15 instrument data load fail
- It's non-obvious when speedscope imports a multi-threaded profile
- Format Support: Android trace file
- AffineTransform multiplication test failed once
- Format support: Import from pyflame
- Support trailing whitespace & floating point values with Brendan Gregg collapsed stack format
- Add support for color scheme controls
- `perf script --hide-call-graph` output is not accepted
- Docs
- TypeScript not yet supported