speedscope
https://github.com/jlfwong/speedscope
TypeScript
🔬 A fast, interactive web-based viewer for performance profiles.
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- Issues
- 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
- WIP: Fix import for some Instruments profiles
- custom counters / graphs
- No obvious error if WebGL is disabled
- FeatureRequest: only "my code"
- FeatureRequest: "Sort threads by runtime or liveliness"
- Docs
- TypeScript not yet supported