node/tools/wrk

wrk - a HTTP benchmarking tool

  wrk is a modern HTTP benchmarking tool capable of generating significant
  load when run on a single multi-core CPU. It combines a multithreaded
  design with scalable event notification systems such as epoll and kqueue.

  An optional LuaJIT script can perform HTTP request generation, response
  processing, and custom reporting. Several example scripts are located in
  scripts/

Basic Usage

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

  This runs a benchmark for 30 seconds, using 12 threads, and keeping
  400 HTTP connections open.

  Output:

  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
  Transfer/sec:    606.33MB

Scripting

  wrk's public Lua API is:

    init     = function(args)
    req