安装

Flame 是 Node Clinic 工具的一部分。要安装 Flame，只需要安装 Node Clinic 就行了：

Flame is part of the Node Clinic suit of tools. To install Flame, simply install Node Clinic like so:

npm install -g clinic

安装完成后，我们可以通过运行 clinic flame command --help 命令来检查 Flame 是否已经安装：

After installing, we can check if Flame has been installed with running the clinic flame command with the --help flag.

clinic flame --help

执行上面的命令应该输出如下内容：

It should print something similar to the following:

Clinic Flame - v3.6.0 (0x v4.7.2)

clinic flame helps you find synchronous bottlenecks
by creating a flamegraph visualization that assists in identifying
function calls that may be blocking the event loop.

For more information see the 0x readme, https://github.com/davidmarkclements/0x

To run clinic flame

  clinic flame -- node server.js

If profiling on a server, it can be useful to only do data collection:

  clinic flame --collect-only -- node server.js

You can then transfer the data and visualize it locally:

  clinic flame --visualize-only PID.clinic.flame

Flags
-h | --help                Display Help
-v | --version             Display Version
--collect-only             Do not process data on terminiation
--visualize-only datapath  Build or rebuild visualization from data

# 安装

安装