A load test is a type of performance test "focused on determining or validating performance characteristics of the product under test when subjected to workload models and load volumes anticipated during production operations". For issues relating to the setting up or running of load tests.

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Getting a random line from a file with Jmeter

I know that jmeter has a CSV based controller, but this will just read the lines sequentially, one per thread/iteration. I also know that you can use __StringFromFile() to read in a line from a ...
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1answer
158 views

How do I tune the probabilities in a Markov chain based load test to produce specific hit rates?

I am writing a load test for a web application. I have a few month's worth of access logs that tell me relative hit rates of various URLs. However, the access logs do not contain enough information ...
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1answer
207 views

In The Grinder, what is a run number?

In The Grinder, the script context includes a thread number, a process number, and a run number. I believe the thread number identifies a thread within a group of threads spawned by a worker process. ...
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1answer
2k views

Load runner is unable to launch IE8 while recording?

I am using Win 7 Ultimate edition and i have installed Load Runner 9.10. I have added an exception to the firewall in order to allow vUser Generator. The problem is whenever I try to record a script ...
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2answers
225 views

How can I downgrade to IE6 to use Load Runner 8?

I'm totally new to this testing software. Currently I'm using LR 8.0. I learned that this version is only compatible with IE6. For some reasons I cannot afford to downgrade my current IE version back ...
2
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1answer
344 views

Testing automated tests in Hyper-V virtual machines

I recently started with a company which does not have any other full-time testers (testing as such is done primarily by people from support), so I don't have other people within the company to ask ...
9
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4answers
967 views

Load testing tools vs. making your own

I've never needed to work with commercial load running tools before, as our test infrastructure is pretty immature here and I've used internal tools in the past. We're working on a .NET technology ...
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2answers
11k views

Calculate peak concurrent users on a website

I am looking at setting up some website load testing scripts and need some help in finding a formula to estimate how many concurrent users are browsing a website at peak times, based on common metrics ...
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1answer
614 views

Nothings gets recorded when using JMeter for load testing of Vaddin-based app

We have been trying to do a Quick Load test on one of the POC application developed in Vaddin using JMeter tool, the server is hosted on local network. The settings for automating Vaddin application ...
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5answers
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How do you calculate the number of virtual concurrent users to use in a load test given data on actual site traffic?

When working on performance testing, one of the problems I've faced is trying to translate real-world web application traffic to simulated traffic. A practical example is for an eCommerce site. ...
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9answers
745 views

Performance testing - a way in?

We have an a browser based application that is built on the Microsoft Stack, specifically .NET 3.5. It also uses Ajax, iframes, jQuery etc. At the moment we are just guessing at the concurrency ...