How to Set up Thread Properties for jmeter

Question

can somebody please advise how to create a jmeter thread properties correctly with the following requirements 55 user a min ramp-up over an hour with a test running for 4 hours.

Answer 1

If you need 55 users added each minute during 1 hour, you set up should look like:

• Number of Threads: 3300 (55 users x 60 minutes)
• Ramp-up: 3600 (1 hour == 3600 seconds)
• Loop Count: Forever
• Scheduler -> Duration: 14400 (3600 seconds in hour x 4)

Be aware that 3300 concurrent threads is quite a high load, make sure that you're following recommendations from JMeter Performance and Tuning Tips guide.

If you won't be able to create such a load from a single machine consider Distributed Testing when one JMeter master machine orchestrates several slaves, for instance 3 slaves having 1100 virtual users each.