Ajax Jay Rock

I-DigitalTEK Agile Development IT Solutions for Growing Business JayRock “Ajax” Thin Client RPC Architecture “ Performance Testing: Json RPC versus Web Service XML” I-DigitalTEK K I IdigitalTEK

JayRock Server Side

JSON format.

Server side serialization in NET Object

RPC Called synchronously or asynchronously.

public class HelloWorld : JsonRpcHandler

{ [ JsonRpcMethod("greetings") ]

public string Greetings()

{ return "Welcome to Jayrock!"; } }

JayRock Client Side

JSON Client Side called

<script type="text/javascript" src="json.js"></script>

<script type="text/javascript" src="helloworld.ashx?proxy"></script>

Java Script

<script type="text/javascript">

window.onload = function() { var s = new HelloWorld(); alert("sync:" + s.greetings()); s.greetings(function(response) { alert("async:" + response.result) }); }

</script>

JavaScript function then it treats it as a callback.

JavaScript's eval function to parse Text.

Java Script Object Notation

// josn.js must be included prior to this point

var countries = new Array();

countries.push(“USA");

countries.push(“Canada");

countries.push(“UK");

countries.push(“Australia");

alert("The JSON representation of the countries array is: " + countries.toJSONString());

var value = eval( "(" + jsonText + ")" );

var countries = jsonText t.parseJSON();

JSON versus XML

Structure Data Type.

Native Array.

Recognized NULL values.

No Namespace.

No Date time literal.

Simple.

Very compact format.

Does not need XML DOM client side can use JavaScript’s eval.

Relatively new data exchange format not as well supported as XML by Vendors.

Load Test Tools

VS 2008 Test suite

Web test project

Load test project

Step Duration

Step Time

Virtual Users and Session

If Statement and Loop

Error Log and limitation

IIS Performance Monitoring

System Monitor

Counters Group: Processor, Memory, Logical Drive, Physical Drive, DNS, DHCP Server, Network Interface, Web Service.

Network Monitor

Wire Shark

Counters:

Memory: available Bytes (over 20MB), Cache Bytes (memory depletion), Committed Bytes (75% of Physical Memory), Page Faults/sec, Pages/sec (max 80), Pool Non-paged Bytes (increases may imply memory leaks).