node package manager
Loosely couple your services. Use Orgs to version and reuse your code. Create a free org »

wrk

node-wrk

Prepare command line arguments and parse the output of the wrk load testing tool

example

var wrk = require('wrk');
 
var conns = 1;
var results = [];
 
function benchmark() {
  if (conns === 100) {
    return console.log(results);
  }
  conns++;
  wrk({
    threads: 1,
    connections: conns,
    duration: '10s',
    printLatency: true,
    url: 'http://localhost:3000/'
  }, function(err, out) {
     results.push(out);
     benchmark();
  });
}
benchmark();

Options:

  • threads
  • connections
  • duration
  • printLatency
  • url: target url
  • path: path to wrk binary (default is "wrk")
  • debug: print the output of wrk to stdout

Callback parameters: (err, wrkResults)

wrkResults always has:

  • transferPerSec
  • requestsPerSec
  • requestsTotal
  • durationActual
  • transferTotal
  • latencyAvg
  • latencyStdev
  • latencyStdevPerc
  • latencyMax
  • rpsAvg
  • rpsMax
  • rpsStdev
  • rpsStdevPerc

Has these if printLatency is enabled

  • latency50
  • latency75
  • latency90
  • latency99

And sometimes has (only if they exist):

  • connectErrors
  • readErrors
  • writeErrors
  • timeoutErrors
  • non2xx3xx

install

With npm do:

npm install wrk

see also

HTTPerf.js

license

MIT