Hi, Hello I'm new to JMeter and this mailing list so firstly, thanks for a great tool! I'm a web software developer and I'd like to use JMeter to load test a web application I'm developing.
I have set up a test which is intended to model a representative sample of user behaviour. The test performs a user login and various common actions. I want to use this to answer the question "what is the mean response time at a given level of concurrent users?". To this end I ran the test repeatedly with thread numbers from 2, 4, 8, 16, 32, 64, and then looked at the results. The answer I got was that at loads of 16 or more threads I was getting response times of 6 seconds or more. This is clearly not acceptable for any application. So, before I start digging into my code to try to find out what's going on, I wanted to sanity check that my model is reasonable. One area that I'm not sure about is the introduction of a random delay between user requests. I did this by adding a Guassian Random Timer as a child of the root Thread Group. If understood correctly, this random delay will get applied to all HTTP samplers in the tree. I used a mean of 700ms and standard deviation of 400ms. So, I have two questions: 1) have I understood correctly that the timer gets applied to the whole tree .. I don't need to add one for each HTTP sampler? 2) do the figures of mean 700ms and stdev 400ms seem reasonable? I wonder if it's a bit too short? Thanks in advance for any advice you can give. David Heath http://davidheath.org/ --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
