Jmeter odd and even threadNumbers

Question

I have to simulate a scenario where I want 50% to use one http request and the rest for another request. I tried using the IF controller to split by threadNumber i.e. send the odd thread numbers to one side and even to another. I tried using the condition in IF controller in Jmeter as

 ${threadNum}' % 2 == '0'

and '${threadNum}' %2 != '0'

I tried with around 10 users and I always see them going only into the odd queue i.e. ${threadNum}' % 2 == '0' is never satisfied. Am i doing it the right way?

Answer 1

Lots of problems here:

1. The JMeter function is __threadNum You lost the underscores somewhere. Ref

2. What data type do you expect ${__threadNum} to return? If it is a string, why would you do arithmetic (%2) on a string. If it is an int, why are you comparing it to a char ('0')?

As an aside, do not compare strings in java using the == operator. See here.

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That being said, if you want half the threads to use a second sampler, why not setup two thread groups with half the number of threads each, with one of the two http requests under the two thread groups?