node-wrk

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

example

`` js
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,
headers: { cookie: 'JSESSIONID=abcd' },
url: 'http://localhost:3000/'
}, function(err, out) {
results.push(out);
benchmark();
});
}
benchmark();
`
Options:

- threads
- connections
- duration
- printLatency
- headers: object with additional request headers
- url: target url
- path: path to wrk binary (default is "wrk")
- debug: print the output of wrk to stdout
- execOptions: options that will be directly passed through to the child_process.exec of wrk

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

license

MIT