Jmeter：控制一次发生的请求数

Question

I'm doing performance testing on an app that does transactions. I have 25 threads but only 5 unique IDs.

Here's my problem: To avoid concurrency issue, I want to limit the number of requests being made during a buy/sell transaction to only 5 (cuz only 5 unique IDs). How do I achieve this in Jmeter?

Please be detailed in answer as i'm a total noobie. Thank you!!

Answer 1

Use Synchronizing Timer

The purpose of the SyncTimer is to block threads until X number of threads have been blocked, and then they are all released at once.

With Number of Simultaneous Users to Group by as 5

Answer 2

You can limit the execution rate to the specified number of requests per unit of time using the following test elements:

• Precise Throughput Timer
• Constant Throughput Timer
• Throughput Shaping Timer

All of them are capable of "pausing" JMeter threads to the specified throughput (# of requests per minute/second)