On 15/05/07, onkelkarle <[EMAIL PROTECTED]> wrote:

Hello,

I have a question concerning the nesting of thread groups but I haven't
found any sufficient answers on the web. Maybe someone can answer me my
question:

Thread Groups do not work when nested.

I want to test a web application with the following the following load test:

00 - 05 min: 10 users on web application
05 - 10 min: 20 users on web application
10 - 15 min: 30 users on web application
15 - 20 min: 40 users on web application
20 - 25 min: 50 users on web application
...

Do you really need a jump in load every 5 minutes?

I tried to set up the following test plan with nested thread groups:

+-ThreadGroup1: no of threads:5 ,  loop count 1, ramp up time: 20 minutes
  +-ThreadGroup2 (nested): no of threads:10 ,  loop count: forever, ramp up
time: 5 sec

I expected to get in the end 5x10=50 threads, but I just got 10. what did I
do wrong? Doesn't JMeter allow nested thread groups? Well the gui does at
least. Did I do something wrong?

See above.

Does anybody have a better idea how to get this load characteristics in a
test plan? Well I thought about starting 5 different JMeter instances, not
very comfortable though.

You could use 5 different thread groups inthe same JMeter plan, with
delays of 5, 10, etc minutes

But unless you really need the load to increase by jumps, just set the
thread count to 50 and ramp-up to 1200 (i.e. 20*60 )

Thanks a lot
Patrick
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