var sys = require('sys'),
    http = require('http');

// Usage:
// node client.js port, num, c

var port = process.argv[2];
var n = process.argv[3];
var c = process.argv[4];

var count = n;
var data = 0;
var start = new Date().valueOf();
for (var i = 0; i < c; i++) {
    (function () {
        var client = http.createClient(port, "127.0.0.1");
        (function get() {
            var request = client.request("GET", "/", {});
            request.addListener('response', function (response) {
                response.addListener('data', function (chunk) {
                    data += chunk.length;
                });
                response.addListener('end', function () {
                    count--;
                    if (count > 0) get();
                    else end();
                });
            });
            request.end();
        }());
    }());
}

var done = false;
function end() {
    if (done) return;
    done = true;
    var seconds = (new Date().valueOf() - start) / 1000;
    sys.debug("Port: " + port);
    sys.debug("Num Requests: " + n);
    sys.debug("Concurrency: " + c);
    sys.debug("Total Data: " + data + " bytes");
    sys.debug("Total Time: " + seconds + " seconds");
    sys.debug((n / seconds) + " Requests/sec");
    sys.debug((data / 1024 / seconds) + " Kilobytes/sec");
}

// node client.js 8000 10000 100
// DEBUG: Port: 8000
// DEBUG: Num Requests: 10000
// DEBUG: Concurrency: 100
// DEBUG: Total Data: 10000 bytes
// DEBUG: Total Time: 3.16 seconds
// DEBUG: 3164.5569620253164 Requests/sec
// DEBUG: 3.090387658227848 Kilobytes/sec


// node client.js 8001 10000 100
// DEBUG: Port: 8001
// DEBUG: Num Requests: 10000
// DEBUG: Concurrency: 100
// DEBUG: Total Data: 100000 bytes
// DEBUG: Total Time: 3.088 seconds
// DEBUG: 3238.341968911917 Requests/sec
// DEBUG: 31.62443329015544 Kilobytes/sec


// node client.js 8002 16000 100
// DEBUG: Port: 8002
// DEBUG: Num Requests: 16000
// DEBUG: Concurrency: 100
// DEBUG: Total Data: 1600000 bytes
// DEBUG: Total Time: 4.843 seconds
// DEBUG: 3303.737352880446 Requests/sec
// DEBUG: 322.63060086723107 Kilobytes/sec


// node client.js 8003 16000 100
// DEBUG: Port: 8003
// DEBUG: Num Requests: 16000
// DEBUG: Concurrency: 100
// DEBUG: Total Data: 16000692 bytes
// DEBUG: Total Time: 5.022 seconds
// DEBUG: 3185.9816806053364 Requests/sec
// DEBUG: 3111.444799133811 Kilobytes/sec

// node client.js 8004 8000 100
// DEBUG: Port: 8004
// DEBUG: Num Requests: 8000
// DEBUG: Concurrency: 100
// DEBUG: Total Data: 80004669 bytes
// DEBUG: Total Time: 2.619 seconds
// DEBUG: 3054.6009927453224 Requests/sec
// DEBUG: 29831.82877827892 Kilobytes/sec


// node client.js 8005 4000 100
// DEBUG: Port: 8005
// DEBUG: Num Requests: 4000
// DEBUG: Concurrency: 100
// DEBUG: Total Data: 401374752 bytes
// DEBUG: Total Time: 2.19 seconds
// DEBUG: 1826.4840182648402 Requests/sec
// DEBUG: 178980.60787671234 Kilobytes/sec


// node client.js 8006 2000 100
// DEBUG: Port: 8006
// DEBUG: Num Requests: 2000
// DEBUG: Concurrency: 100
// DEBUG: Total Data: 2047093547 bytes
// DEBUG: Total Time: 6.73 seconds
// DEBUG: 297.17682020802374 Requests/sec
// DEBUG: 297045.28855753154 Kilobytes/sec