OutOfMermory errors running load test

Question

We are running load tests on VS 2013 - 2k users - and are consistently getting out of memory errors. When we look at the services we can see that the QTController service has (32 bit) after it. Our assumption is that this is what is causing the problem,
but we are not able to get the controller - or agents - to run in 64-bit mode.
Entire lab is running on Windows 2012 R2 Enterprise.
Thanks!

Answer 1

Hi SharonBjeletich,
Your assumption is right. Running test agents on 64 bit OS in a 32 bit test run may cause Out of Memory exception in load test.
In order to set test agents to run on 64 bit process if the test agent is a 64 bit machine, please you’re your test settings file in this solution and select
Hosts --> Run tests in 32 bit or 64 bit process --> Run tests in 64 bit process on 64 bit machine
About how to resolve ‘out of memory exception’ in web/load test, the following blogs gave detailed explanations and troubleshooting methods:
Resolve “Out of Memory exception“ in VSTS Web/ Load test
Visual Studio 2010 Load Test – Out of Memory Exceptions On 32 bit Machines
OR 32 bit Run
Best regards,
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