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From Philippe Mouawad <philippe.moua...@gmail.com>
Subject Re: Report / Dashboard : New report containing min/max and percentiles graphs / BUG 60091
Date Wed, 07 Sep 2016 12:15:53 GMT
On Wednesday, September 7, 2016, Antonio Gomes Rodrigues <ra0077@gmail.com>
wrote:

> Hi,
>
> See my answer below
>
> 2016-09-06 21:28 GMT+02:00 Philippe Mouawad <philippe.mouawad@gmail.com
> <javascript:;>>:
>
> > Hello,
> > I commited few minutes ago the implementation of a new Graph in the HTML
> > report:
> > - https://bz.apache.org/bugzilla/show_bug.cgi?id=60091
> >
> > As always feedback is welcome.
> > But I have 2 questions:
> > 1/ on how percentile should be computed.
> > For now percentile is computed per each time period as defined by
> > granularity, starting from nothing for each time period.
> > Should we instead take the last percentile computed for previous time
> > period or proceed differently ?
> >
>
> No opinion




>
>
> >
> > 2/ Should we exclude Transaction Controller from computation ? Because
> they
> > tend if included to hide real response times as being a group of
> requests,
> > there value will be much higher than response times.
> >
>
> In y opinion, we should not mix TC and requests grouped by TC but take
> account of TC usage
>
> example 1:
> TC1:
>        request 1
>        request 2
> TC2:
>        request 3
>        request 4
>
> Here what I want to see is a Graph that contains min, max, percentil... for
> only TC (TC1 + TC2)


you would check generate parent sample here, right ?

> Or if it not possible a Graph that contains min, max, percentil... for only
> requests (request 1 + request 2 + request 3 + request 4)


Excluding tc is the easiest way.

The problem we have is that report requires tc to not generate a parent
sample otherwise we loose important information:
- error codes of underlying requests
- number of request to compute hits
- precise response time for each request

But if we don't generate parent sample:
- errors can count twice(for the child request and its parent TC)
- percentiles are also impacted as you describe it

TC are in fact a pain in the ass in Jmeter code.
But they are still useful to group requests.







> example 2:
> TC1:
>        request 1
>        request 2
> request 3
> request 4
>
> Here what I want to see is a Graph that contains min, max, percentil... for
> TC1 + request 3 + request 4


So you would check generate parent sample here ?

>
>
> Antonio
>
>
> > Thank you
> >
> > --
> > Regards.
> > Philippe M.
> >
>


-- 
Cordialement.
Philippe Mouawad.

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