Hi,
Yes, thank you very much for your attention.
I'll read about it.
Em 08-01-2019 11:11, Antonio Gomes Rodrigues escreveu:
Hi,
You can check
http://jmeter.apache.org/usermanual/component_reference.html#Constant_Throughput_Timer
and
http://jmeter.apache.org/usermanual/component_reference.html#Precise_Throughput_Timer
Check also open/closed model for load testing
Or there is an explanation in the book
https://leanpub.com/master-jmeter-from-load-test-to-devops
About this book, I am one of the authors and I don't know if there are
other books which explains it.
Le mar. 8 janv. 2019 à 13:29, Marcio Prado
<[email protected]>
a écrit :
Sergio you have the JMeter documentation link that says what you
explained to me?
In addition to your email I need the link to reference my work.
Once again, thank you.
Em 07-01-2019 16:24, Sergio Boso escreveu:
> Hi,
>
> yes it is normal, and this seems confusing at the beginning fro most.
> It depends very much on how you design the test, the number of virtual
> user etc.
> IF you do not use times, THEN each VU issues a request as soon as the
> previous one is finished.
> So, when response times increase, the throughput drops.
> For example, if a request takes 1 second, one VU will issue 60
> request per minute.
> When a request takes 2 second, one VU will issue 30 request per
> minute. So you have to increase the number of VU to compensate.
>
> IN order to overcome this problem, the best option IMHO is to use a
> "Constant Throughput Timer".
> This allows you to make the VU wait and not to exceed a specified
> throughput.
> So in the example above, if you insert a time limiting the throughput
> to 30 op /s, you will not exceed this throughput.
> Even if the actual request will take 0.5, or 1 or 1.8 seconds, the
> throughput will not change.
> You can adjust the number of VU in order to obtain the desired load.
> Obviously, if the request takes more than 2 seconds, , the throughput
> will drop.
>
> HTH
> Sergio
>
> Il 07/01/2019 18:52, Marcio Prado ha scritto:
>> Good afternoon,
>>
>> I have a question that can be simple for most.
>>
>> I'm running some tests on a cloud computing with OpenStack.
>>
>> When network latency increases, the number of HTTP requests met
>> decreases. Is this normal behavior?
>>
>> I figured that the number of HTTP requests would remain the same as
>> when latency was low, since HTTP requests are generated regardless of
>> response time.
>>
>> Can anyone explain this behavior?
>>
>> Thank you!
>>
--
Marcio Prado
Analista de TI - Infraestrutura e Redes
Fone: (35) 9.9821-3561
www.marcioprado.eti.br
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Fone: (35) 9.9821-3561
www.marcioprado.eti.br
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