Greetings!
First of all, allow me to introduce myself. My name is Paul and I have been working with JMeter, roughly for the past 2 months. It has been an interesting ride, especially after discovering the BeanShell component :-) Anyway, let me get down to the important stuff. Today I discovered something that is worrying me to a certain degree and I'll try to explain: - I have a JMeter script that is being used to test the responsiveness of a web site of mine. The web site basically: 1) controls access using a login page; 2) presents a dynamically built list of tickets; 3) the user opens a ticket (a form, but doesn't process anything in the form); 4) closes the ticket. - My objective is to determine the time spent in each of these 4 steps. I added various methods (just out of curiosity to ensure that the values are always the same no matter which component I use) to determine the time in each sampler: an Aggregate Report Listener, Simple Data Writer and I'm also using BeanShell (using the SampleResult.getTime(); method). I'm executing the tests using two different approaches: via JMeter GUI and non-GUI JMeter call in the command line. Now here's the interesting part: if I run the test from within JMeter GUI I receive two different sets of results, depending on whether the Aggregate Report is enabled or not. Every test I run with Aggregate Report Listener enabled gives me response times on average 2 seconds faster then with the Aggregate Report Listener Disabled. Has anyone experienced such behaviour? Obtaining considerably different response times depending on whether a particular component is active or not... I'm completely available to better explain this scenario in case I haven't made it clear. Thanks in advance for any answer on this one! Regards, Paulo Lourenço
