This calculator gives a fixed pacing value (i.e. a delay between two iterations) to design an accurate workload model. Calculate the pacing value for workload modelling by providing the required inputs.
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Requirement: A company with an e-commerce website expects 9000 orders per hour. The company has 3,000 registered users, but only 600 customers are active at a time. A customer takes around 300 seconds to place an order. Now, the company wants to check whether the website can handle 600 customers load at a time or not.
Workload Modelling: A performance tester needs to design the workload model for the above requirement. After completing the script, he replays the flow and finds that one iteration takes around 90 seconds. He adds 10 seconds of think time between each pair of transactions and the sum of all the think times is 110.
The given number of orders per hour is 9000, hence the test needs to complete 9000 iterations with 600 users. To achieve this number accurate pacing needs to be added in the script. The above-given pacing calculator will provide a correct value of pacing:
- No. of Users (Threads): 600
- End to End Response Time (in seconds): 90
- No. of Iterations per hour: 9000
- Total Think Time (in seconds): 110
The calculated Pacing is 40 seconds. It means that a delay of 40 seconds will require between two iterations to place 9000 orders with 600 user loads in one hour.