Re: Running Multiple Scripts Concurrently Using Grinder

It's arbitrary

On 26 Jun 2015 22:47, "Christine Economy" <[email protected]> wrote:
>
> Thanks, Gary!   This is tremendously helpful now and also going forward
working with Grinder.
> Thanks again - and for being willing to share your knowledge.  I always
check
> Amazon for books on any new tech areas I venture into.  Didn't see one
for The Grinder.
> Have you ever considered writing one?


Philip was one of the original authors of The Grinder and still is
semi-active with the project and on this list.

http://www.amazon.com/J2ee-Performance-Testing-Peter-Zadrozny/dp/159059181X

>
>
> I do have one potentially dumb question I'd like to ask you about the
parallel
> script:  where is the value of 4 coming from?  Why 4 in this case?

It is arbitrarily chosen in the sample, so yes it is a dumb number. Any
conditional logic that decides what tests to run as a function of the
Grinder thread id could be used. e.g. assuming you had a list of
test class scripts testScript1.py, testScript2.py, testScript3.py create a
Dict:

scaleFactor = 2.0
scenario = {'testScript1'              :  01 * scaleFactor,
            'testScript2'              :  05 * scaleFactor,
            'testScript3'              :  10 * scaleFactor}

for script in scenario.keys():
    exec("import %s" % script)

Then every Grinder thread created uses its thread id to determine which of
the above should be executed to implement the scenario. The scaleFactor
allows you to simply scale the load before the test starts, not during.
You'll need to look at the other samples to see how to delay the start of
the _call_() method to simulate you load scenario (ramp-up, down, etc). Its
a bit more programmatic than LoadRunner, but allows much better fine
control of execution and monitoring.

Gary

------------------------------------------------------------------------------
Monitor 25 network devices or servers for free with OpManager!
OpManager is web-based network management software that monitors 
network devices and physical & virtual servers, alerts via email & sms 
for fault. Monitor 25 devices for free with no restriction. Download now
http://ad.doubleclick.net/ddm/clk/292181274;119417398;o

_______________________________________________
grinder-use mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/grinder-use