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From Philippe Mouawad <philippe.moua...@gmail.com>
Subject Re: real-time results docs - unclear
Date Fri, 06 May 2016 13:22:01 GMT
On Fri, May 6, 2016 at 3:00 PM, sebb <sebbaz@gmail.com> wrote:

> On 6 May 2016 at 13:37, Philippe Mouawad <philippe.mouawad@gmail.com>
> wrote:
> > Hi,
> > Thanks for documentation review.
> > My answers below.
> > Regards
> >
> > On Fri, May 6, 2016 at 12:43 PM, sebb <sebbaz@gmail.com> wrote:
> >
> >> Just read real-time results [1]
> >>
> >> I don't understand the following sentences:
> >>
> >> 1) When percentile contains a comma for example "99.9", dot is
> >> sanitized by "_" leading to 99_9.
> >>
> >> The sentence refers to 'comma' however the example does not include a
> >> comma. Huh?
> >>
> > Good catch.
> > comma should be dot.
> >
> >>
> >> Why should there be any need to sanitize the percentile?
> >>
> >
> >
> http://graphite.readthedocs.io/en/latest/feeding-carbon.html#step-1-plan-a-naming-hierarchy
> >
> >
> >>
> >> 2) By default JMeter sends only metrics for all samplers using "all"
> >> as samplerName.
> >>
> >> Does this mean that JMeter matches the label 'all' by default?
> >> Or something else?
> >>
> > I don't understand question.
>
> It's not clear what "samplerName" refers to.
> Is it the JMeter sample results - i.e. the filtering - or is it the
> attribute of the metrics data?
> And where is the default defined?
> How does one change it?
>

It means jmeter will send to graphite an entry called "all" as it would do
if you decide to send a particular sampler called "search"

>
> >
> >>
> >> 3) You can input as many percentiles as you want (3 or 4 being a
> >> reasonable value).
> >>
> >> It's not clear how to provide multiple entries, unless it is
> >> referrring to the "percentiles" field on the GUI?
> >
> >
> > Yes
> >
> >> In which case, it
> >> would make more sense for the GUI description to mention the suggested
> >> limit of 3 or 4 percentiles.
> >>
> > Feel free to add it.
> >
> >>
> >> 4) The rootMetricsPrefix defaults to "jmeter.". In the description,
> >> the names are shown as
> >> <rootMetricsPrefix>.<samplerName>.ok.count
> >>
> >> Does this mean that the names are actually of the form:
> >>
> >> jmeter..Login.ok.count
> >>
> > Yes
>
> Two dots?
>
Ok , no 2 dots. So you're right the rootMetricsPrefix is "jmeter" not
"jmeter."

> Really?
>
> If the code appends a dot to the prefix, why does the default prefix
> end with a dot?
> Or was that a mistake?
>
Mistake

>
> 5) Also, how does
>
> <rootMetricsPrefix>.<samplerName>.a.count
>    Number of responses for sampler name
>
> differ from
>
> <rootMetricsPrefix>.<samplerName>.ok.count
>   Number of successful responses for sampler name
>
> and
>
> <rootMetricsPrefix>.<samplerName>.ko.count
>   Number of failed responses for sampler name
>
> It's not clear what the 'a' means in 'a.count'
>
a is for all.
a.count = ok.count + ko.count

>
> >
> >>
> >> It would be helpful to have some actual example names.
> >>
> > Feel free to complete documentation
> >
> >>
> >> [1]
> >>
> http://home.apache.org/~milamber/jmeter-3.0RC3/docs/usermanual/realtime-results.html
> >>
> >
> > Note that BackendListener is here since JMeter 2.13
> >
> >
> > --
> > Cordialement.
> > Philippe Mouawad.
>



-- 
Cordialement.
Philippe Mouawad.

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