jmeter-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From sebb <seb...@gmail.com>
Subject Re: Constant Throughput Timer vs Throughput Shaping Timer (JMeter plugin)?
Date Thu, 20 Oct 2011 23:40:45 GMT
On 21 October 2011 00:36, David Luu <mangaroo@gmail.com> wrote:
> Thanks, the beanshell server looks useful for what I'd want.

That's very flexible but it would be simpler if the variable were set
in the test plan itself.

e.g. if you wanted to ramp up gradually, you could use a counter with
a suitable increment to define the throughput variable.

> On Thu, Oct 20, 2011 at 10:43 AM, sebb <sebbaz@gmail.com> wrote:
>
>> On 20 October 2011 18:14, Adrian Speteanu <asp.adieu@gmail.com> wrote:
>> > Hey David,
>> >
>> > I've used both.
>> >
>> > Its not much to compare :). If you understand the Constant Throughput
>> Timer,
>> > then you understand both and it's easy to see that its major limitation
>> is
>> > that it holds (if possible) the throughput constant at the value you
>> define
>> > (which was the intent). However if you want to easily create a more
>> complex
>> > test scenario like:
>>
>> The "constant" can also be varied. If the constant is expressed as a
>> variable or function reference, that allows the throughput to be
>> varied at will.
>>
>> See for example:
>>
>>
>> http://jakarta.apache.org/jmeter/usermanual/best-practices.html#beanshell_server
>>
>>
>> >  1. run a test with throughput 100 for 2 min
>> >  2. continue for 2 more minutes with throughput 200
>> >  3. continue for 2 more minutes with throughput 500
>> > to see how the application responds to these changes in the load
>> received,
>> > without the plugin you had to use more thread groups and configure the
>> > scheduling so you get the same effect. The plugin makes these use cases
>> > simple and more easy to understand.
>> >
>> > You can make things a lot more complicated than that if you'd like using
>> > both methods and a lot of imagination.
>> >
>> > On Tue, Oct 11, 2011 at 5:19 AM, David Luu <mangaroo@gmail.com> wrote:
>> >
>> >> I was wondering if anybody has used both, and wonder how they compare.
>> >> Pros/cons of each.
>> >>
>> >> And how one could best simulate the Throughput Shaping Timer with the
>> >> constant throughput timer via variable/property that defines the
>> throughput
>> >> and changing it during test run. Particularly how would you implement
>> the
>> >> changing of the throughput variable and where to place in test plan.
>> >>
>> >> FYI, I'm refering to this JMeter plugin:
>> >>
>> >> http://code.google.com/p/jmeter-plugins/wiki/ThroughputShapingTimer
>> >>
>> >
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
>> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>>
>>
>

---------------------------------------------------------------------
To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: jmeter-user-help@jakarta.apache.org


Mime
View raw message