Gatling 3.7 setup duration time for the whole test

Question

could someone help me?? how can I convert the below scale code to the Gatling 3.7 java?

values: testConfig.vUsers == 5 testConfig.rampup == testConfig.vUsers * 4 seconds = 20 seconds

setUp(
        Demo_Scenario.inject(rampUsers(testConfig.vUsers) during (testConfig.rampup))
    ).throttle(
        reachRps(109).in(436 seconds),
        holdFor(64 minutes)
    ).protocols(httpProtocol)
        .assertions(
            forAll.responseTime.mean.lte(200),
            forAll.responseTime.percentile3.lte(200),
            forAll.successfulRequests.percent.gte(95)
        )
}

and this one:

setUp(
        Demo_scenario.inject(rampUsers(testConfig.vUsers) during (testConfig.rampup))
    ).protocols(httpProtocol)
        .assertions(
            forAll.responseTime.mean.lte(200),
            forAll.responseTime.percentile3.lte(200),
            forAll.successfulRequests.percent.gte(95)
        )
}

and finally, how can I set up the duration for the full test let's say I want the test still running for 1 h??

thanks

Answer 1

There's some misunderstanding on some Gatling concepts here:

• you define the users arrival rate over time with an injection profile
• the virtual users perform a scenario
• throttle merely sets a limit on your rps, it doesn't make your test last longer
• rampUsers(5) during (20) is going to start a total of 5 users over 20 seconds, meaning 1 every 4 seconds

This is all explained in the official documentation and the free online courses .

So your test duration depends on:

• how long your injection profile lasts
• how long your virtual users take to perform their scenario

If Demo_Scenario only lasts 5 second, your test is going to complete after 25 seconds. If you want your test to last 1 hour:

• either inject users for a long period
• or make your scenario last longer, eg with loops

The suited solution really depends on your use case: do you want fresh new users or reuse the same few ones.

Note: Gatling 3.7 is deprecated, current version is 3.8.3.