Скачать или смотреть Jmeter Tutorials | Ramp Up Period in Jmeter

Ramp up period in jmeter gives you idea about how long to take choose number of threads as per given in Number of threads(users) in thread group.If 20 threads are mentioned in
Number of threads(users) and ramp up period is 100 seconds then Jmeter will take 100 seconds to pick up 20 thread users to initialize and running.As per ramp up period each thread user
start in 5 seconds(100/20) once previous thread was begun.

Ramp up period in Jmeter

In order to understand the clearly ,let's take some examples,please follow below examples

Number of threads(users) = 10
Ramp up period(in seconds) = 100
Loop Count = 1

Formula is : (Ramp up Period/Number of threads)*Loopcount
As per above formula