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Testing / Apache JMeter Interview questions

What is the Constant Timer?

The Constant Timer is the simplest timer in JMeter, pausing execution for a single, fixed number of milliseconds before the next sampler in its scope runs.

Because the delay is identical every single time, it's straightforward to reason about but produces a less realistic traffic pattern than a randomized timer, since real users rarely pause for exactly the same amount of time between every action.

It's commonly used for simple pacing needs or quick prototyping, while more randomized timers like the Uniform Random Timer are often preferred when a more realistic simulation of varied user think time is the goal.

The Constant Timer applies:
Compared to a randomized timer, the Constant Timer produces:

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