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perfetto_extras

基于 Perfetto 的 Python 工具包,提供 trace 事件生成与浏览器可视化能力。

特性

  • trace_events:便捷生成符合 Perfetto 规范的 trace 事件,可自定义进程、线程、事件类型等。
  • opentrace:一键在浏览器中打开本地 trace 文件,自动本地 HTTP 服务并跳转至 ui.perfetto.dev
  • 命令行工具:安装后可直接使用 opentrace 命令,无需再写 python 脚本。

安装

pip install perfetto_extras

或使用 poetry:

poetry add perfetto_extras

快速开始

1. 生成 Trace 事件

from perfetto_extras import trace_events

# 创建 Trace 对象
t = trace_events.Trace()
# 创建进程轨迹
track = t.create_process_track("MyProcess", "category")
# 添加线程轨迹
thread = track.create_thread_track("MainThread", "category")
# 添加事件
thread.add_complete_event("event1", ts=0, duration_us=1000, args={"foo": 1})

# 导出为 JSON
with open("my_trace.json", "w") as f:
    f.write(t.dumps(indent=2, ensure_ascii=False))

2. 浏览器可视化 Trace 文件

方式一:直接用命令行工具(推荐)

opentrace my_trace.json

方式二:用 python -m 方式

python -m perfetto_extras.opentrace my_trace.json

命令会自动打开浏览器并加载本地 trace 文件到 Perfetto UI。

目录结构

perfetto_extras/
    trace_events.py   # Trace 事件生成核心模块
    opentrace.py      # 浏览器可视化工具
pyproject.toml        # 项目配置与依赖
README.md             # 使用说明

依赖

  • Python >= 3.11
  • protobuf == 5.29.3
  • click >= 8.2.1, <9.0.0

贡献

欢迎提交 issue 和 PR!

  1. Fork 本仓库
  2. 新建分支
  3. 提交修改
  4. 发起 Pull Request

License

MIT


温馨提示:

  • 如果你的包有更多功能、API 或命令行参数,请在 README 里详细补充示例和说明。
  • 如果有徽章(如 PyPI 版本、CI 状态),可以加在最上面。

如需根据你的实际 API 或功能进一步定制,请把主要功能点或代码片段发给我,我可以帮你写得更详细!

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