seed for random controllers?

[Tim Wood <tw...@gmail.com>]

Hi,
How are the seeds chosen for the random controllers/timers in jmeter?
If I repeat a test twice, should I expect the same random times to be
chosen?

I would like to make my tests precisely repeatable -- is there
somewhere I should be setting a base seed?

thanks,
Tim

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Re: seed for random controllers?

[sebb <se...@gmail.com>]

On 23/08/07, Tim Wood <tw...@gmail.com> wrote:
> Hi,
> How are the seeds chosen for the random controllers/timers in jmeter?

I think they use the current time.

> If I repeat a test twice, should I expect the same random times to be
> chosen?

No.

> I would like to make my tests precisely repeatable -- is there
> somewhere I should be setting a base seed?

Not at present; feel free to raise a Bugzilla enhancement request.

Or create a file of random numbers and use CSV Dataset to read them;
you can use the Switch Controller with one of these "random" numbers.

Or use a Javascript, JEXL or BeanShell function to provide the random numbers.

> thanks,
> Tim
>
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