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From zillakilla <>
Subject Re: Timers, Think Time between requests, and Best Practices
Date Fri, 20 May 2011 19:02:04 GMT
I think there are many ways of doing what you need but,
1 simple way is to use a ConstantThroughputTimer instead of the
This can assist with think time and also to calculate number of users
Knowing what the expected throughput vs actual throughput is also a useful

with 1 thread running, set the ConstantThroughputTimer to 60 reqs per min
(60 being: number of threads * 60 = 1 req per sec per thread)
So.... 1 thread = 1 req per sec

if you have a think time of say 6 secs... then 1 thread with a CTP of 60 =
10 users 
(or a think time of 4 secs ... then 1 thread = think time / 60 = 15 users)
If you did not get close to a total throughput of 60 reqs per min (1 req per
sec) then you know you have problems

 If i wanted to simulate 300 users using this logic (with think time = 6
secs), i would have 5 threads running in 1 thread group
with the ConstantThroughputTimer set to 300 (300 being: number of threads *
60 = 1 req per sec per thread)

Did it make sense?


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