wrk动态脚本压测

压测工具

wrk是一个小巧的命令行http压测工具，支持lua脚本。

项目地址: https://github.com/wg/wrk

参数释义

Usage: wrk <options> <url>                            
  Options:                                            
    -c, --connections <N>  Connections to keep open   
    -d, --duration    <T>  Duration of test           
    -t, --threads     <N>  Number of threads to use   
                                                      
    -s, --script      <S>  Load Lua script file       
    -H, --header      <H>  Add header to request      
        --latency          Print latency statistics   
        --timeout     <T>  Socket/request timeout     
    -v, --version          Print version details      
                                                      
  Numeric arguments may include a SI unit (1k, 1M, 1G)
  Time arguments may include a time unit (2s, 2m, 2h)

脚本示例

createOrder.lua:

local bodyTemp = [[
{
    "id": "%s",
    "type": "order",
}
]]

local counter = 0

function setup(thread)
    thread:set("id", counter)
    counter = counter + 1
end

request = function()
    wrk.method = "POST"
    wrk.headers["Content-Type"] = "application/json"
    wrk.headers["authorization"] = "Bearer ".."your.access.token"
    local tid = wrk.thread:get("id")
    -- generate random id
    local orderId = "wrk"..os.time()..string.sub(math.random(),10)..tid
    --print(orderId)
    wrk.body = string.format(bodyTemp, orderId)
    return wrk.format(nil)
end

function response(status, headers, body)
    print(status)
    --print(body)
end

执行压测

wrk -c1 -t1 -d1s -s createOrder.lua http://your.url

查看报告

  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   275.57ms   45.84ms 319.61ms   66.67%
    Req/Sec     3.00      1.00     4.00    100.00%
  3 requests in 1.03s, 106.01KB read
Requests/sec:      2.91
Transfer/sec:    103.00KB