https://github.com/mapbox/flamebearer
Blazing fast flame graph tool for V8 and Node 🔥
https://github.com/mapbox/flamebearer
flame-graph javascript node performance profiling v8 visualization
Last synced: about 1 month ago
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Blazing fast flame graph tool for V8 and Node 🔥
- Host: GitHub
- URL: https://github.com/mapbox/flamebearer
- Owner: mapbox
- License: isc
- Created: 2018-03-29T13:09:53.000Z (about 7 years ago)
- Default Branch: master
- Last Pushed: 2021-10-18T07:23:37.000Z (over 3 years ago)
- Last Synced: 2025-03-03T01:47:46.341Z (about 2 months ago)
- Topics: flame-graph, javascript, node, performance, profiling, v8, visualization
- Language: JavaScript
- Homepage:
- Size: 544 KB
- Stars: 1,650
- Watchers: 129
- Forks: 28
- Open Issues: 7
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Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# 🔥 flamebearer
A blazing fast [flame graph](http://www.brendangregg.com/flamegraphs.html) tool for Node and V8.
Used to visualize and explore performance profiling results.
Designed to produce fast, lightweight flame graphs that remain responsive even on really big input.## [Example graph](https://mapbox.github.io/flamebearer/examples/rollup.html)
## Usage
Use the [online version](https://mapbox.github.io/flamebearer/), or the command line tool:
```bash
# install flamebearer (Node v8.5+ required)
$ npm install -g flamebearer# profile your app
$ node --prof app.js# generate flamegraph.html from a V8 log and open it in the browser
$ node --prof-process --preprocess -j isolate*.log | flamebearer
```## Thanks
- [Brendan Gregg](http://brendangregg.com/) for creating the [concept](https://queue.acm.org/detail.cfm?id=2927301) and maintaining the [reference implementation](http://brendangregg.com/flamegraphs.html).
- [David Mark Clements](https://github.com/davidmarkclements) for creating [0x](https://github.com/davidmarkclements/0x) which inspired this project.
- [Bernard Cornwell](http://www.bernardcornwell.net/books/) for the amazing books this project took its name from.