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speedscope

A high-performance interactive web-based viewer for sampling profiles.

Example Profile

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.

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.

S
Description
🔬 A web-based viewer for sampling profiles 一个用于查看样本数据的网络工具
https://github.com/jlfwong/speedscope.git
Readme MIT
9.3 MiB
1.23.0
Latest
2025-07-07 11:04:25 +08:00
Languages
TypeScript 77.8%
JavaScript 20.7%
Shell 1%
CSS 0.2%
Makefile 0.2%
Other 0.1%