src/example/benchmark.html - external/github.com/google/pywebsocket - Git at Google

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 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 <html>
 <head>
 <title>WebSocket benchmark</title>
 <script src="util.js"></script>
 <script>
 // Namespace for holding globals.
 var benchmark = {};

 var PRINT_SIZE = true;

 var SEND_PARAMETER = {
   numSockets: 1,
   // Initial size of messages.
   startSize: 100000 * 1024,
   // Stops benchmark when the size of message exceeds this threshold.
   stopThreshold: 100000 * 1024,
   // If the size of each message is small, send/receive multiple messages until
   // the sum of sizes reaches this threshold.
   minTotal: 100000 * 1024,
   multipliers: [5, 2],
 };

 var RECEIVE_PARAMETER = {
   numSockets: 1,
   startSize: 10 * 1024,
   stopThreshold: 100000 * 1024,
   minTotal: 100000 * 1024,
   multipliers: [5, 2],
 };

 var sockets = [];
 var numEstablishedSockets = 0;

 var addressBox = null;

 var timerID = null;

 benchmark.startTimeInMs = 0;

 var totalSize = 0;
 var totalReplied = 0;

 function destroySocket(socket) {
   socket.onopen = function() {};
   socket.onmessage = function() {};
   socket.onerror = function() {};
   socket.onclose = function() {};
   socket.close();
 }

 function destroyAllSockets() {
   for (var i = 0; i < sockets.length; ++i) {
     destroySocket(sockets[i]);
   }
   sockets = [];
 }

 function buildSendBenchmarkFunction(size, multiplierIndex, parameter) {
   if (size > parameter.stopThreshold) {
     addToLog('Finished');
     destroyAllSockets();
     return function() {};
   }

   var onMessageHandler = function(event) {
     if (!verifyAcknowledgement(event.data, size)) {
       destroyAllSockets();
       return;
     }

     totalReplied += size;

     if (totalReplied < totalSize) {
       return;
     }

     calculateAndLogResult(size, benchmark.startTimeInMs, totalSize, PRINT_SIZE);

     timerID = setTimeout(
         buildSendBenchmarkFunction(
             size * parameter.multipliers[multiplierIndex],
             (multiplierIndex + 1) % parameter.multipliers.length,
             parameter),
         0);
   };

   return function() {
     for (var i = 0; i < sockets.length; ++i) {
       var socket = sockets[i];
       socket.onmessage = onMessageHandler;
     }

     benchmark.startTimeInMs = getTimeStamp();

     totalReplied = 0;

     totalSize = 0;

     var socketIndex = 0;
     while (totalSize < parameter.minTotal) {
       var buffer = new ArrayBuffer(size);

       fillArrayBuffer(buffer, 0x61);

       sockets[socketIndex].send(buffer);
       socketIndex = (socketIndex + 1) % sockets.length;

       totalSize += size;
     }
   };
 }

 function buildReceiveBenchmarkFunction(size, multiplierIndex, parameter) {
   if (size > parameter.stopThreshold) {
     addToLog('Finished');
     destroyAllSockets();
     return function() {};
   }

   var onMessageHandler = function(event) {
     alert();
     var bytesReceived = event.data.byteLength;
     if (bytesReceived != size) {
       addToLog('Expected ' + size + 'B but received ' + bytesReceived + 'B');
       destroyAllSockets();
       return;
     }

     if (!verifyArrayBuffer(event.data, 0x61)) {
       addToLog('Response verification failed');
       destroyAllSockets();
       return;
     }

     totalReplied += bytesReceived;

     if (totalReplied < totalSize) {
       return;
     }

     calculateAndLogResult(size, benchmark.startTimeInMs, totalSize, PRINT_SIZE);

     timerID = setTimeout(
         buildReceiveBenchmarkFunction(
             size * parameter.multipliers[multiplierIndex],
             (multiplierIndex + 1) % parameter.multipliers.length,
             parameter),
         0);
   };

   return function() {
     for (var i = 0; i < sockets.length; ++i) {
       var socket = sockets[i];
       socket.binaryType = 'arraybuffer';
       socket.onmessage = onMessageHandler;
     }

     benchmark.startTimeInMs = getTimeStamp();

     totalReplied = 0;

     totalSize = 0;

     var socketIndex = 0;
     while (totalSize < parameter.minTotal) {
       sockets[socketIndex].send(size);
       socketIndex = (socketIndex + 1) % sockets.length;

       totalSize += size;
     }
   };
 }

 function createSocket() {
   // TODO(tyoshino): Add TCP warm up.

   if (!('WebSocket' in window)) {
     return;
   }

   var url = addressBox.value;

   addToLog('Connect ' + url);

   var socket = new WebSocket(url);
   socket.onmessage = function(event) {
     addToLog('Unexpected message received. Aborting.');
   };
   socket.onerror = function() {
     addToLog('Error');
   };
   socket.onclose = function(event) {
     addToLog('Closed');
   };
   return socket;
 }

 function startBenchmark(runner, numSockets) {
   clearTimeout(timerID);
   destroyAllSockets();

   numEstablishedSockets = 0;

   for (var i = 0; i < numSockets; ++i) {
     var socket = createSocket();
     socket.onopen = function() {
       addToLog('Opened');

       ++numEstablishedSockets;

       if (numEstablishedSockets == sockets.length) {
         setTimeout(runner, 0);
       }
     };
     sockets.push(socket);
   }
 }

 function sendBenchmark() {
   addToLog('Send benchmark');
   addToLog('Message size in KiB, Speed in kB/s');

   var runner = buildSendBenchmarkFunction(
       SEND_PARAMETER.startSize,
       0,
       SEND_PARAMETER);

   startBenchmark(runner, SEND_PARAMETER.numSockets);
 }

 function receiveBenchmark() {
   addToLog('Receive benchmark');
   addToLog('Message size in KiB, Speed in kB/s');

   var runner = buildReceiveBenchmarkFunction(
       RECEIVE_PARAMETER.startSize,
       0,
       RECEIVE_PARAMETER);

   startBenchmark(runner, RECEIVE_PARAMETER.numSockets);
 }

 function stop() {
   addToLog('Stopped');
   destroyAllSockets();
 }

 function init() {
   addressBox = document.getElementById('address');
   logBox = document.getElementById('log');

   var scheme = window.location.protocol == 'https:' ? 'wss://' : 'ws://';
   var defaultAddress = scheme + window.location.host + '/benchmark_helper';

   addressBox.value = defaultAddress;

   addToLog(window.navigator.userAgent.toLowerCase());

   if (!('WebSocket' in window)) {
     addToLog('WebSocket is not available');
   }
 }
 </script>
 </head>
 <body onload="init()">

 <div id="benchmark_div">
   url <input type="text" id="address" size="40">
   <input type="button" value="send" onclick="sendBenchmark()">
   <input type="button" value="receive" onclick="receiveBenchmark()">
   <input type="button" value="stop" onclick="stop()">
 </div>

 <div id="log_div">
   <textarea
       id="log" rows="20" style="width: 100%" readonly></textarea>
 </div>

 Note: Effect of RTT and time spent for ArrayBuffer creation are not eliminated.

 </body>
 </html>
	<!--
	Copyright 2013, Google Inc.
	All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are
	met:

	* Redistributions of source code must retain the above copyright
	notice, this list of conditions and the following disclaimer.
	* Redistributions in binary form must reproduce the above
	copyright notice, this list of conditions and the following disclaimer
	in the documentation and/or other materials provided with the
	distribution.
	* Neither the name of Google Inc. nor the names of its
	contributors may be used to endorse or promote products derived from
	this software without specific prior written permission.

	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	-->

	<html>
	<head>
	<title>WebSocket benchmark</title>
	<script src="util.js"></script>
	<script>
	// Namespace for holding globals.
	var benchmark = {};

	var PRINT_SIZE = true;

	var SEND_PARAMETER = {
	numSockets: 1,
	// Initial size of messages.
	startSize: 100000 * 1024,
	// Stops benchmark when the size of message exceeds this threshold.
	stopThreshold: 100000 * 1024,
	// If the size of each message is small, send/receive multiple messages until
	// the sum of sizes reaches this threshold.
	minTotal: 100000 * 1024,
	multipliers: [5, 2],
	};

	var RECEIVE_PARAMETER = {
	numSockets: 1,
	startSize: 10 * 1024,
	stopThreshold: 100000 * 1024,
	minTotal: 100000 * 1024,
	multipliers: [5, 2],
	};

	var sockets = [];
	var numEstablishedSockets = 0;

	var addressBox = null;

	var timerID = null;

	benchmark.startTimeInMs = 0;

	var totalSize = 0;
	var totalReplied = 0;

	function destroySocket(socket) {
	socket.onopen = function() {};
	socket.onmessage = function() {};
	socket.onerror = function() {};
	socket.onclose = function() {};
	socket.close();
	}

	function destroyAllSockets() {
	for (var i = 0; i < sockets.length; ++i) {
	destroySocket(sockets[i]);
	}
	sockets = [];
	}

	function buildSendBenchmarkFunction(size, multiplierIndex, parameter) {
	if (size > parameter.stopThreshold) {
	addToLog('Finished');
	destroyAllSockets();
	return function() {};
	}

	var onMessageHandler = function(event) {
	if (!verifyAcknowledgement(event.data, size)) {
	destroyAllSockets();
	return;
	}

	totalReplied += size;

	if (totalReplied < totalSize) {
	return;
	}

	calculateAndLogResult(size, benchmark.startTimeInMs, totalSize, PRINT_SIZE);

	timerID = setTimeout(
	buildSendBenchmarkFunction(
	size * parameter.multipliers[multiplierIndex],
	(multiplierIndex + 1) % parameter.multipliers.length,
	parameter),
	0);
	};

	return function() {
	for (var i = 0; i < sockets.length; ++i) {
	var socket = sockets[i];
	socket.onmessage = onMessageHandler;
	}

	benchmark.startTimeInMs = getTimeStamp();

	totalReplied = 0;

	totalSize = 0;

	var socketIndex = 0;
	while (totalSize < parameter.minTotal) {
	var buffer = new ArrayBuffer(size);

	fillArrayBuffer(buffer, 0x61);

	sockets[socketIndex].send(buffer);
	socketIndex = (socketIndex + 1) % sockets.length;

	totalSize += size;
	}
	};
	}

	function buildReceiveBenchmarkFunction(size, multiplierIndex, parameter) {
	if (size > parameter.stopThreshold) {
	addToLog('Finished');
	destroyAllSockets();
	return function() {};
	}

	var onMessageHandler = function(event) {
	alert();
	var bytesReceived = event.data.byteLength;
	if (bytesReceived != size) {
	addToLog('Expected ' + size + 'B but received ' + bytesReceived + 'B');
	destroyAllSockets();
	return;
	}

	if (!verifyArrayBuffer(event.data, 0x61)) {
	addToLog('Response verification failed');
	destroyAllSockets();
	return;
	}

	totalReplied += bytesReceived;

	if (totalReplied < totalSize) {
	return;
	}

	calculateAndLogResult(size, benchmark.startTimeInMs, totalSize, PRINT_SIZE);

	timerID = setTimeout(
	buildReceiveBenchmarkFunction(
	size * parameter.multipliers[multiplierIndex],
	(multiplierIndex + 1) % parameter.multipliers.length,
	parameter),
	0);
	};

	return function() {
	for (var i = 0; i < sockets.length; ++i) {
	var socket = sockets[i];
	socket.binaryType = 'arraybuffer';
	socket.onmessage = onMessageHandler;
	}

	benchmark.startTimeInMs = getTimeStamp();

	totalReplied = 0;

	totalSize = 0;

	var socketIndex = 0;
	while (totalSize < parameter.minTotal) {
	sockets[socketIndex].send(size);
	socketIndex = (socketIndex + 1) % sockets.length;

	totalSize += size;
	}
	};
	}

	function createSocket() {
	// TODO(tyoshino): Add TCP warm up.

	if (!('WebSocket' in window)) {
	return;
	}

	var url = addressBox.value;

	addToLog('Connect ' + url);

	var socket = new WebSocket(url);
	socket.onmessage = function(event) {
	addToLog('Unexpected message received. Aborting.');
	};
	socket.onerror = function() {
	addToLog('Error');
	};
	socket.onclose = function(event) {
	addToLog('Closed');
	};
	return socket;
	}

	function startBenchmark(runner, numSockets) {
	clearTimeout(timerID);
	destroyAllSockets();

	numEstablishedSockets = 0;

	for (var i = 0; i < numSockets; ++i) {
	var socket = createSocket();
	socket.onopen = function() {
	addToLog('Opened');

	++numEstablishedSockets;

	if (numEstablishedSockets == sockets.length) {
	setTimeout(runner, 0);
	}
	};
	sockets.push(socket);
	}
	}

	function sendBenchmark() {
	addToLog('Send benchmark');
	addToLog('Message size in KiB, Speed in kB/s');

	var runner = buildSendBenchmarkFunction(
	SEND_PARAMETER.startSize,
	0,
	SEND_PARAMETER);

	startBenchmark(runner, SEND_PARAMETER.numSockets);
	}

	function receiveBenchmark() {
	addToLog('Receive benchmark');
	addToLog('Message size in KiB, Speed in kB/s');

	var runner = buildReceiveBenchmarkFunction(
	RECEIVE_PARAMETER.startSize,
	0,
	RECEIVE_PARAMETER);

	startBenchmark(runner, RECEIVE_PARAMETER.numSockets);
	}

	function stop() {
	addToLog('Stopped');
	destroyAllSockets();
	}

	function init() {
	addressBox = document.getElementById('address');
	logBox = document.getElementById('log');

	var scheme = window.location.protocol == 'https:' ? 'wss://' : 'ws://';
	var defaultAddress = scheme + window.location.host + '/benchmark_helper';

	addressBox.value = defaultAddress;

	addToLog(window.navigator.userAgent.toLowerCase());

	if (!('WebSocket' in window)) {
	addToLog('WebSocket is not available');
	}
	}
	</script>
	</head>
	<body onload="init()">

	<div id="benchmark_div">
	url <input type="text" id="address" size="40">
	<input type="button" value="send" onclick="sendBenchmark()">
	<input type="button" value="receive" onclick="receiveBenchmark()">
	<input type="button" value="stop" onclick="stop()">
	</div>

	<div id="log_div">
	<textarea
	id="log" rows="20" style="width: 100%" readonly></textarea>
	</div>

	Note: Effect of RTT and time spent for ArrayBuffer creation are not eliminated.

	</body>
	</html>