Load Test: How to create a custom network profile for network emulation?

VS2010 supports true network emulation i.e. the ability to simulate network conditions by directly manipulating the network packets. The Network Emulation that we provide in Visual Studio 2010 is a software-based emulator which can emulate the behaviour of both wired and wireless networks using a reliable physical link, such as an Ethernet. A variety of…

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Hardware Requirements for Test Agent / Test Controller running Load Test

You can find hardware recommendation for Test Agent / Test Controller here: http://msdn.microsoft.com/en-us/library/ms253092%28VS.90%29.aspx But still people have some questions / confusions around it because of these reasons: 1)Above link talks about h/w requirements for VS2008 and there is no similar link available for VS 2010. 2) The number of virtual users that an test agent…

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Load Test: Different values for counters in graph and table view?

Sometime while looking at load test results you may see different values for some counters in Graph view and Table view.  Generally Min and Max values are different. e.g for my load test result I am seeing different values of counter Page response time in table and graph as you can see below    …

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RPS (Requests / sec) decreases as load test progresses?

Some users come across these type of issues in their load test runs: RPS decreases though user load increases RPS decreases gradually over the duration of run though user load is constant RPS Pattern like shown below in graph indeed looks confusing: As part of investigations we found that these issues are caused by: 1)…

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How to resolve Issues faced during counter collection in Load Test run?

You may come across some issues while collecting counters using Load Test. These 2 types of issues are most common: 1) Not able to access performance counter category on a computer You’ll get this kind of error message in this scenario: The performance counter category ‘Network Interface’ cannot be accessed on computer ‘ComputerName’ (Access is…

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