We often come across such kind of questions like how many users would require for performance testing.
We can use two approach:--
1. First Approach:
Assume that we have 5000 average visitors per day and working window is 12 hours
So calculate like this ....
Average visits per hour = (5000 average visitors/day) / 12 hours = 417
Average Concurrent Users = Visits per hour / (60 min/hour / average visit.
2. Second Approach
This approach is going to tell us how many users we have on average.
U = V / (60/D)
Where:
U is the number of load test virtual users (that's what we are trying to figure out)
V is the average number of visitors per hour
D is the average duration of a visitor
60 is the number of minutes in an hour
Also , we can use
Users = Pages views per hours * Avg. duration of script execution
60 * Total No. of pages in the script
