Question

I have the following scenario to emulate in jMeter:
100 users logging in once and doing search every 30 secs, with think time 5 secs.

How do I implement this?

Right now I have something like this:

ThreadGroup(100usrs)
+-- OnceOnlyController(LogIn)
+-- LoopControler(Search)
+-- Timer(5s)

But I have no idea how to do the 30 secs delay between the Search instances.
Is it even possible or do I have to use some workaround?
Any help appreciated.

Answer 1

If you want to have a fixed delay between the search samples whatever response time of the Sample is then Orkito solution is not the right one.

His solution will add a 30 s delay before the search sample, so if search takes more time than expected your request will run each 30s + Time taken by search sample.

If you want to have a fixed delay between the search samples whatever response time of the Sample then solution is described here:

• http://blog.milamberspace.net/index.php/2008/08/15/jmeter-fixer-la-duree-de-repetition-dune-requete-87.html

It’s in french but there are screenshots and translation service should do the job.

Another important point to note:

Note that timers are processed before each sampler in the scope in which they are found; if there are several timers in the same scope, all the timers will be processed before each sampler.
Timers are only processed in conjunction with a sampler. A timer which is not in the same scope as a sampler will not be processed at all.
To apply a timer to a single sampler, add the timer as a child element of the sampler. The timer will be applied before the sampler is executed. To apply a timer after a sampler, either add it to the next sampler, or add it as the child of a Test Action Sampler.