Clever Geek Handbook

JMeter: Gaussian Random Timer vs Poisson Random Timer

I am trying to figure out which timer to use for my loads to simulate a gradual increase in traffic to a website. I took a look at the Gaussian random timer:

To delay each user request for a random amount of time, use a Gaussian Random timer with most of the time intervals occurring near a certain value.

and a random Poisson timer:

To pause each thread request for random use of time Poisson random timer with most timeslots, specific value.

taken from this source.

Now I don't quite understand what is the difference between them. They both apply a random delay that is likely to be close to a certain value. So what am I missing? How do they differ in practice?

+3


source to share


2 answers


The difference lies in the algorithm used to generate the random values:

Poisson is based on this:



Using Gauss:

Both add to the Constant Delay Offset the value of a random number generated from either Poisson or Gaussian.

+3


source


The difference is in the basic algorithm, check the following links for details.



I would also recommend reading the Detailed Guide to Using JMeter Timers for comprehensive information on JMeter timers.

+1


source






More articles:


All Articles