This folder contains benchmark tests to measure the performance for certain
io.js APIs.
-## prerequisites
+## Prerequisites
-Most of the http benchmarks require `wrk` and `ab` being installed.
+Most of the http benchmarks require [`wrk`][wrk] and [`ab`][ab] being installed.
+These are most often available through your preferred package manager.
+
+[wrk]: https://github.com/wg/wrk
+[ab]: http://httpd.apache.org/docs/2.2/programs/ab.html
## How to run tests
var assert = require('assert');
var fs = require('fs');
var path = require('path');
-var spawn = require('child_process').spawn;
+var child_process = require('child_process');
var silent = +process.env.NODE_BENCH_SILENT;
// If this is the main module, then run the benchmarks
if (module === require.main) {
+ hasWrk();
var type = process.argv[2];
var testFilter = process.argv[3];
if (!type) {
runBenchmarks();
}
+function hasWrk() {
+ var result = child_process.spawnSync('wrk', ['-h']);
+ if (result.error.code === 'ENOENT') {
+ console.error('Couldn\'t locate `wrk` which is needed for running ' +
+ 'benchmarks. Check benchmark/README.md for further instructions.');
+ process.exit(-1);
+ }
+}
+
function runBenchmarks() {
var test = tests.shift();
if (!test)
test = path.resolve(dir, test);
var a = (process.execArgv || []).concat(test);
- var child = spawn(process.execPath, a, { stdio: 'inherit' });
+ var child = child_process.spawn(process.execPath, a, { stdio: 'inherit' });
child.on('close', function(code) {
if (code) {
process.exit(code);
this._name = require.main.filename.split(/benchmark[\/\\]/).pop();
this._start = [0,0];
this._started = false;
+
var self = this;
+
+ hasWrk();
process.nextTick(function() {
self._run();
});
args = args.concat(url);
var out = '';
- var child = spawn('wrk', args);
+ var child = child_process.spawn('wrk', args);
child.stdout.setEncoding('utf8');
if (!argv)
return;
argv = process.execArgv.concat(argv);
- var child = spawn(node, argv, { stdio: 'inherit' });
+ var child = child_process.spawn(node, argv, { stdio: 'inherit' });
child.on('close', function(code, signal) {
if (code)
console.error('child process exited with code ' + code);