[SOLVED] Gatling user injection for 50 total users in 1 hour adding 10 users per 5 minutes

Gatling user injection for 50 total users in 1 hour adding 10 users per 5 minutes

I need to setup a Gatling Test with a total of 50 concurrent users, but I have a problem because there is no choice to get it.

I use rampUsers(10) over (60 minutes) but it gets only 10 concurrent users.
Using constantUsersPerSec(users) during (60 minutes) is too stressful.

Is there any suggestion?

Thanks.

Solution

This could be done as follow:

val scn = scenario("Test").during(1 hours) {
  exec(http("test").get("/"))
}
setUp(scn.inject(splitUsers(50) into atOnceUsers(10) separatedBy(5 minutes))
  .protocols(httpConf))

see https://docs.gatling.io/reference/script/core/simulation/#setup:

splitUsers(nbUsers) into(injectionStep) separatedBy(duration): Repeatedly execute the defined injection step separated by a pause of the given duration until reaching nbUsers, the total number of users to inject.