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You want to simulate 1000 users hitting a REST API with a ramp-up time of 5 minutes using Locust. Which approach is best?

hard📝 Application Q8 of 15
Rest API - API Testing and Monitoring
You want to simulate 1000 users hitting a REST API with a ramp-up time of 5 minutes using Locust. Which approach is best?
ASet spawn rate to 3.33 users per second to reach 1000 users in 5 minutes
BSpawn all 1000 users instantly at test start
CSet spawn rate to 1000 users per minute
DSpawn 100 users every minute for 10 minutes
Step-by-Step Solution
Solution:
  1. Step 1: Calculate spawn rate for ramp-up

    1000 users / 300 seconds = approx 3.33 users per second.
  2. Step 2: Compare options to ramp-up goal

    Instant spawn or wrong rates don't match 5-minute ramp-up.
  3. Final Answer:

    Set spawn rate to 3.33 users per second to reach 1000 users in 5 minutes -> Option A
  4. Quick Check:

    Spawn rate = total users / ramp-up seconds [OK]
Quick Trick: Spawn rate = users divided by ramp-up seconds [OK]
Common Mistakes:
MISTAKES
  • Spawning all users instantly ignoring ramp-up
  • Using incorrect spawn rates
  • Misunderstanding ramp-up timing

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