On 13/01/2009, John Coleman <[email protected]> wrote: > > -----Original Message----- > > From: sebb [mailto:[email protected]] > > Sent: 12 January 2009 19:43 > > To: JMeter Users List > > Subject: Re: Frequency controller > > > > On 12/01/2009, John Coleman <[email protected]> wrote: > > > Hi, > > > > > > In our JMeter test we fire requests to the server every > > second in a > > > loop. However, every n runs of the loop we want to fire an another > > > additional request off. > > > > > > At present we do an if controller, but the condition in the if > > > controller uses a beanshell reference. This seems to be > > very slow and > > > so we only manage to run 20 threads okay, but much more > > than that and > > > the requests per second doesn't scale up. > > > > The If Controller uses Javascript by default - why are you > > using BeanShell? > > > We manipulate vars in beanshell to produce a random frequency, and then > need to test the vars value in the If condition for a match. Is there a > native javascript reference to the vars object found in beanshell?
Yes, see: http://jakarta.apache.org/jmeter/usermanual/functions.html#__javaScript > > > > > > When we remove the if controllers with the beanshell > > conditions, then > > > the test scales properly. > > > > > > Is there 1) a way to create variables that can be accessed > > both in > > > beanshell and if conditions that is faster than using vars? > > > > It's more likely to be BeanShell rather than variables that > > is causing any slowdown. > > > Agreed. > > > > > > > Or 2) Must > > > we create our own frequency controller, similar to the throughput > > > controller, that will only execute it's children every n runs? > > > > How is that different from the Throughput Controller? > > > The throughput controller apears to either run for the first n > iterations, or the last %age of n iterations. We want to run the child > controllers every n iterations. I see. Now that I look at it again, perhaps the curent behaviour is not very useful... > The envisaged frequency controller would > check if the modulus of the iteration number was exactly divisible by > the frequency, in order to signal a run of its subordinates. A simple If Controller should be able to achieve that. Something like: $COUNT % modulus == 0 (not tested) > In addition > we might have a range within which the frequency can vary. > Regards, > > John > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
