Stress Test API - Ramp up settings and execution issues

[davecoleman]

Hi all,

I created a Stress Test in LoadUI pro (ReadyAPI 3.3.1) for a test case which has a DataSource and 7 API methods. the datasource is an excel sheet with 70 inputs for the 7 methods.

We are licenced to max 100 VU (part of our ReadyAPI suite) and I want to stress test from 1 - 100 VU where possible.

How can I set the "Base VU" and the interval to increment by 5 VU's?

I have included image of setup below in ReadyAPI.

When I run this test it appears in our New Relic tool that we are only Load testing. do we need to extend our licences to fully stress test? How can I ensure the setup is correct that it:

- Base VU is 1

- increments by 5 VU

- increments every 10 mins by this 5 VU

thanks.

[AlexKaras]

Hi,

I think that you need to implement the Ramp Up Load Profile: https://support.smartbear.com/readyapi/docs/loadui/configure/profiles/index.html

[davecoleman]

 I used that profile in the setup. I can see the "Load Profile" is "Ramp up". even though I have licence for 100 VU's can I attempt to go up higher, e.g. 1000?

[AlexKaras]

Hi,

> I have licence for 100 VU's can I attempt to go up higher

You may try for sure, though I'm doubting that this is possible without increasing number of licensed VUs.

[davecoleman]

We have 6 x licences for LoadUI within the orgnanisation so ran from each machine at 30 min intervals (100,200,...600 VU's) to simulate a stress test. 

I created a new Stress test project and implemented a Ramp Up but what seems to occur is that every 5 mins its ramps up from 20 to 100 instead of 20 to 100 over the 2 hour period of the stress test. its confusing and the documentation isn't great on this feature from Smartbear.

[sonya_m · Accepted solution]

Thank you Alex!

Hi @davecoleman, please check out this help topic to find info on using more users than licensed. Let me quote:

>>

If you add to your test more concurrent virtual users than your license supports, LoadUI puts the “extra” virtual users in a queue and simulates them only if the license allows. If you experience this behavior, consider upgrading your license to another one that supports a greater number of simultaneous virtual users.

<<

And, this article might be of interest as well, it speaks of Stress Testing: 

>>

Creating stress tests usually requires more virtual users than it is available for the Base (Free) LoadUI license. So, you need a LoadUI Pro license.

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