wrk基本使用

介绍

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wrk是一个现代的HTTP基准测试工具，当在单个多核CPU上运行时能够产生大量负载。

支持Lua脚本，能够执行HTTP请求生成、响应处理和自定义报告执行结果

安装

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Mac

可能会报错，报错就下载源码手动编译

brew install wrk

Linux

sudo apt-get install build-essential libssl-dev git -y
git clone https://github.com/wg/wrk.git wrk
cd wrk
sudo make
# move the executable to somewhere in your PATH, ex:
sudo cp wrk /usr/local/bin

或者从releases中下载：

https://github.com/wg/wrk/releases/tag/4.2.0

基本用法

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wrk -t12 -c400 -d30s http://127.0.0.1:8080/index.html

以上命令表示：运行一个持续时长为30秒，使用12个线程，保持打开400个HTTP连接的压测。

输出：

Running 30s test @ http://127.0.0.1:8080/index.html
  12 threads and 400 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   635.91us    0.89ms  12.92ms   93.69%
    Req/Sec    56.20k     8.07k   62.00k    86.54%
  22464657 requests in 30.00s, 17.76GB read
Requests/sec: 748868.53 // 表示每秒的请求数
Transfer/sec:    606.33MB

命令行选项

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-c, --connections（连接数）: total number of HTTP connections to keep open with
                   each thread handling N = connections/threads

-d, --duration（持续时间）:    duration of the test, e.g. 2s, 2m, 2h

-t, --threads（线程数）:     total number of threads to use

-s, --script（指定Lua脚本）:      LuaJIT script, see SCRIPTING

-H, --header（指定请求头）:      HTTP header to add to request, e.g. "User-Agent: wrk"

    --latency（打印延迟统计信息）:     print detailed latency statistics

    --timeout（打印响应超时信息）:     record a timeout if a response is not received within
                   this amount of time.

参考链接

• https://github.com/wg/wrk
• https://medium.com/@felipedutratine/intelligent-benchmark-with-wrk-163986c1587f