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'use strict';
// This test requires the program 'wrk'
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var common = require('../common');
var assert = require('assert');
var spawn = require('child_process').spawn;
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var http = require('http');
var url = require('url');
if (common.isWindows) {
common.skip('no `wrk` on windows');
return;
}
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var body = 'hello world\n';
var server = http.createServer(function(req, res) {
res.writeHead(200, {
'Content-Length': body.length,
'Content-Type': 'text/plain'
});
res.write(body);
res.end();
});
var keepAliveReqSec = 0;
var normalReqSec = 0;
function runAb(opts, callback) {
var args = [
'-c', opts.concurrent || 100,
'-t', opts.threads || 2,
'-d', opts.duration || '10s',
];
if (!opts.keepalive) {
args.push('-H');
args.push('Connection: close');
}
args.push(url.format({ hostname: '127.0.0.1',
port: common.PORT, protocol: 'http'}));
//console.log(comm, args.join(' '));
var child = spawn('wrk', args);
child.stderr.pipe(process.stderr);
child.stdout.setEncoding('utf8');
var stdout;
child.stdout.on('data', function(data) {
stdout += data;
});
child.on('close', function(code, signal) {
if (code) {
console.error(code, signal);
process.exit(code);
return;
}
var matches = /Requests\/sec:\s*(\d+)\./mi.exec(stdout);
var reqSec = parseInt(matches[1]);
matches = /Keep-Alive requests:\s*(\d+)/mi.exec(stdout);
var keepAliveRequests;
if (matches) {
keepAliveRequests = parseInt(matches[1]);
} else {
keepAliveRequests = 0;
}
callback(reqSec, keepAliveRequests);
});
}
server.listen(common.PORT, function() {
runAb({ keepalive: true }, function(reqSec) {
keepAliveReqSec = reqSec;
console.log('keep-alive:', keepAliveReqSec, 'req/sec');
runAb({ keepalive: false }, function(reqSec) {
normalReqSec = reqSec;
console.log('normal:' + normalReqSec + ' req/sec');
server.close();
});
});
});
process.on('exit', function() {
assert.equal(true, normalReqSec > 50);
assert.equal(true, keepAliveReqSec > 50);
assert.equal(true, normalReqSec < keepAliveReqSec);
});