Not able to log "throughput" in a log file

[vivek <vi...@iiitb.net>]

Hi,

I am not able to log the throughput during the run in a log file. I can 
see the values in the in "aggregate results" but cannot find in log file.

I want to log the *timestamp , throughput *in a file for a particular 
JMeter run.

Please help.

Thanks,
vivek kumar singh
National University of Singapore

Re: Not able to log "throughput" in a log file

[vivek <vi...@iiitb.net>]

On 28/03/2013 19:14, Flavio Cysne wrote:
> I have saved several httpSamples in a DB, from tests made at the last two
> months, and the difference between Latency and Elapsed Time, when Latency
> is greater than Elapsed Time, is between 1 and 417ms.
>
>
> 2013/3/27 sebb <se...@gmail.com>
>
>> On 27 March 2013 19:47, Flavio Cysne <fl...@gmail.com> wrote:
>>>> This is becaused it is measured to the end of the first read from the
>>> response.
>>>
>>> I always thought that latency should be the amount of time between the
>>> request sent and the first byte received, not the first read of an entire
>>> packet.
>> Ideally, yes, but it's not easy/possible to do that.
>>
>>> I've seen some cases, using JMeter 2.7, that latency is greater than
>>> elapsed time.
>> How much greater?
>>
>>> I'll try to reproduce this issue and raise a bug report ASAP.
>>> I'll also try it on JMeter 2.9.
>>> Thanks sebb
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
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>>
>>
How to capture throughput in a file along with timestamp when the JMeter 
is running. Any idea?

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Re: Not able to log "throughput" in a log file

[Flavio Cysne <fl...@gmail.com>]

I have saved several httpSamples in a DB, from tests made at the last two
months, and the difference between Latency and Elapsed Time, when Latency
is greater than Elapsed Time, is between 1 and 417ms.


2013/3/27 sebb <se...@gmail.com>

> On 27 March 2013 19:47, Flavio Cysne <fl...@gmail.com> wrote:
> >> This is becaused it is measured to the end of the first read from the
> > response.
> >
> > I always thought that latency should be the amount of time between the
> > request sent and the first byte received, not the first read of an entire
> > packet.
>
> Ideally, yes, but it's not easy/possible to do that.
>
> > I've seen some cases, using JMeter 2.7, that latency is greater than
> > elapsed time.
>
> How much greater?
>
> > I'll try to reproduce this issue and raise a bug report ASAP.
> > I'll also try it on JMeter 2.9.
>
> > Thanks sebb
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
> For additional commands, e-mail: user-help@jmeter.apache.org
>
>

Re: Not able to log "throughput" in a log file

[sebb <se...@gmail.com>]

On 27 March 2013 19:47, Flavio Cysne <fl...@gmail.com> wrote:
>> This is becaused it is measured to the end of the first read from the
> response.
>
> I always thought that latency should be the amount of time between the
> request sent and the first byte received, not the first read of an entire
> packet.

Ideally, yes, but it's not easy/possible to do that.

> I've seen some cases, using JMeter 2.7, that latency is greater than
> elapsed time.

How much greater?

> I'll try to reproduce this issue and raise a bug report ASAP.
> I'll also try it on JMeter 2.9.

> Thanks sebb

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Re: Not able to log "throughput" in a log file

[Flavio Cysne <fl...@gmail.com>]

> This is becaused it is measured to the end of the first read from the
response.

I always thought that latency should be the amount of time between the
request sent and the first byte received, not the first read of an entire
packet.

I've seen some cases, using JMeter 2.7, that latency is greater than
elapsed time. I'll try to reproduce this issue and raise a bug report ASAP.
I'll also try it on JMeter 2.9.

Thanks sebb

Re: Not able to log "throughput" in a log file

[sebb <se...@gmail.com>]

On 27 March 2013 11:51, Flavio Cysne <fl...@gmail.com> wrote:
> Throughput is a relation of bytes transferred per second. In JMeter,
> Aggregate Report shows it per label, not per sample. Although throughput is
> not logged in each httpSample, it should be calculated by dividing the
> attribute's values "by" per "t".

That's bytes / elapsed time.

> I'll not subtract latency ( attribute "lt"
> ) because, in almost all samples, it is equal or greater than response time
> ( attribute "t" ), even it's conceptually wrong.

Latency is often the same as elapsed time.
This is becaused it is measured to the end of the first read from the response.
Often the first read contains the whole response.

Latency will be zero in samplers that don't calculate it.

It should never be greater than elapsed.
If there are such cases using the samplers provided with JMeter,
please raise a bug report.

>
> 2013/3/27 Darren Bown <da...@gmail.com>
>
>> Hi Vivek,
>>
>> Sorry, I misunderstood. If you use the Aggregate Report and write the
>> results out, that will give you a running throughput total, in the
>> second-to-last column. Check out the documentation for more detail.
>>
>> Darren.
>>
>>
>> On 27 March 2013 08:59, vivek <vi...@iiitb.net> wrote:
>>
>> > On 27/03/2013 16:30, Darren Bown wrote:
>> >
>> >> HI Vivek,
>> >>
>> >> How are you capturing the logs? Are you using a Simple Data Writer or
>> are
>> >> you writing out the reports using the 'Aggregate Report' listener? If
>> you
>> >> add the path to your report to the 'Filename' field above the results
>> >> pane,
>> >> that's where you'll find the results logged.
>> >>
>> >> Hope this helps.
>> >>
>> >>
>> >> On 27 March 2013 08:16, vivek <vi...@iiitb.net> wrote:
>> >>
>> >>  Hi,
>> >>>
>> >>> I am not able to log the throughput during the run in a log file. I can
>> >>> see the values in the in "aggregate results" but cannot find in log
>> file.
>> >>>
>> >>> I want to log the *timestamp , throughput *in a file for a particular
>> >>> JMeter run.
>> >>>
>> >>> Please help.
>> >>>
>> >>> Thanks,
>> >>> vivek kumar singh
>> >>> National University of Singapore
>> >>>
>> >>>
>> >>
>> >>  I am using "Simple Data Writer" to store the results in file. Here is
>> > one line from my log file:
>> >
>> > *<httpSample t="51" lt="51" ts="1364373983380" s="true"
>> > lb="/tpcw1/TPCW_home_**interaction" rc="200" rm="OK" tn="Thread Group
>> > 1-2" dt="text" by="9798"/>*
>> >
>> > In above, time stamp is getting logged with other thread details.  I want
>> > to log "*thoughput*" also which is not getting logged shown above.
>> >
>> > Thanks,
>> > vivek
>> >
>>
>>
>>
>> --
>> Darren Bown
>> tel:* +44(0)*7873 163 452
>> tel: *+44(0)7971 078 445*
>>

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Re: Not able to log "throughput" in a log file

[Flavio Cysne <fl...@gmail.com>]

Throughput is a relation of bytes transferred per second. In JMeter,
Aggregate Report shows it per label, not per sample. Although throughput is
not logged in each httpSample, it should be calculated by dividing the
attribute's values "by" per "t". I'll not subtract latency ( attribute "lt"
) because, in almost all samples, it is equal or greater than response time
( attribute "t" ), even it's conceptually wrong.


2013/3/27 Darren Bown <da...@gmail.com>

> Hi Vivek,
>
> Sorry, I misunderstood. If you use the Aggregate Report and write the
> results out, that will give you a running throughput total, in the
> second-to-last column. Check out the documentation for more detail.
>
> Darren.
>
>
> On 27 March 2013 08:59, vivek <vi...@iiitb.net> wrote:
>
> > On 27/03/2013 16:30, Darren Bown wrote:
> >
> >> HI Vivek,
> >>
> >> How are you capturing the logs? Are you using a Simple Data Writer or
> are
> >> you writing out the reports using the 'Aggregate Report' listener? If
> you
> >> add the path to your report to the 'Filename' field above the results
> >> pane,
> >> that's where you'll find the results logged.
> >>
> >> Hope this helps.
> >>
> >>
> >> On 27 March 2013 08:16, vivek <vi...@iiitb.net> wrote:
> >>
> >>  Hi,
> >>>
> >>> I am not able to log the throughput during the run in a log file. I can
> >>> see the values in the in "aggregate results" but cannot find in log
> file.
> >>>
> >>> I want to log the *timestamp , throughput *in a file for a particular
> >>> JMeter run.
> >>>
> >>> Please help.
> >>>
> >>> Thanks,
> >>> vivek kumar singh
> >>> National University of Singapore
> >>>
> >>>
> >>
> >>  I am using "Simple Data Writer" to store the results in file. Here is
> > one line from my log file:
> >
> > *<httpSample t="51" lt="51" ts="1364373983380" s="true"
> > lb="/tpcw1/TPCW_home_**interaction" rc="200" rm="OK" tn="Thread Group
> > 1-2" dt="text" by="9798"/>*
> >
> > In above, time stamp is getting logged with other thread details.  I want
> > to log "*thoughput*" also which is not getting logged shown above.
> >
> > Thanks,
> > vivek
> >
>
>
>
> --
> Darren Bown
> tel:* +44(0)*7873 163 452
> tel: *+44(0)7971 078 445*
>

RE: Not able to log "throughput" in a log file

["Stott, Charlie" <CS...@tnsi.com>]

There are listeners in jmeter-plugins extension that may work better for you.  You can graph tps or response times, record the details to file, reproduce the graphs from CLI, or browse the log data during test or on completion.

Another option is to use an external monitor, like graphite, which can log throughput, etc.

We have found a combination of monitoring systems is necessary to produce a complete performance report.

Charlie


> -----Original Message-----
> From: vivek [mailto:vivekkumar.singh@iiitb.net]
> Sent: Thursday, 4 April 2013 2:18 PM
> To: JMeter Users List
> Subject: Re: Not able to log "throughput" in a log file
> 
> On 27/03/2013 17:08, Darren Bown wrote:
> > Hi Vivek,
> >
> > Sorry, I misunderstood. If you use the Aggregate Report and write the
> > results out, that will give you a running throughput total, in the
> > second-to-last column. Check out the documentation for more detail.
> >
> > Darren.
> >
> >
> > On 27 March 2013 08:59, vivek <vi...@iiitb.net> wrote:
> >
> >> On 27/03/2013 16:30, Darren Bown wrote:
> >>
> >>> HI Vivek,
> >>>
> >>> How are you capturing the logs? Are you using a Simple Data Writer
> >>> or are you writing out the reports using the 'Aggregate Report'
> >>> listener? If you add the path to your report to the 'Filename' field
> >>> above the results pane, that's where you'll find the results logged.
> >>>
> >>> Hope this helps.
> >>>
> >>>
> >>> On 27 March 2013 08:16, vivek <vi...@iiitb.net> wrote:
> >>>
> >>>   Hi,
> >>>> I am not able to log the throughput during the run in a log file. I
> >>>> can see the values in the in "aggregate results" but cannot find in log
> file.
> >>>>
> >>>> I want to log the *timestamp , throughput *in a file for a
> >>>> particular JMeter run.
> >>>>
> >>>> Please help.
> >>>>
> >>>> Thanks,
> >>>> vivek kumar singh
> >>>> National University of Singapore
> >>>>
> >>>>
> >>>   I am using "Simple Data Writer" to store the results in file. Here
> >>> is
> >> one line from my log file:
> >>
> >> *<httpSample t="51" lt="51" ts="1364373983380" s="true"
> >> lb="/tpcw1/TPCW_home_**interaction" rc="200" rm="OK" tn="Thread
> Group
> >> 1-2" dt="text" by="9798"/>*
> >>
> >> In above, time stamp is getting logged with other thread details.  I
> >> want to log "*thoughput*" also which is not getting logged shown above.
> >>
> >> Thanks,
> >> vivek
> >>
> >
> >
> Hi,
> 
> The above method suggested helps to get the throughput when we stop the
> running test in JMeter. I need to capture the current throughput when the
> JMeter is running. We can see the through put values changing when running
> the JMeter, but the question is : How to capture this in a file with local time
> stamp.
> 
> 
> 
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Re: Not able to log "throughput" in a log file

[vivek <vi...@iiitb.net>]

On 27/03/2013 17:08, Darren Bown wrote:
> Hi Vivek,
>
> Sorry, I misunderstood. If you use the Aggregate Report and write the
> results out, that will give you a running throughput total, in the
> second-to-last column. Check out the documentation for more detail.
>
> Darren.
>
>
> On 27 March 2013 08:59, vivek <vi...@iiitb.net> wrote:
>
>> On 27/03/2013 16:30, Darren Bown wrote:
>>
>>> HI Vivek,
>>>
>>> How are you capturing the logs? Are you using a Simple Data Writer or are
>>> you writing out the reports using the 'Aggregate Report' listener? If you
>>> add the path to your report to the 'Filename' field above the results
>>> pane,
>>> that's where you'll find the results logged.
>>>
>>> Hope this helps.
>>>
>>>
>>> On 27 March 2013 08:16, vivek <vi...@iiitb.net> wrote:
>>>
>>>   Hi,
>>>> I am not able to log the throughput during the run in a log file. I can
>>>> see the values in the in "aggregate results" but cannot find in log file.
>>>>
>>>> I want to log the *timestamp , throughput *in a file for a particular
>>>> JMeter run.
>>>>
>>>> Please help.
>>>>
>>>> Thanks,
>>>> vivek kumar singh
>>>> National University of Singapore
>>>>
>>>>
>>>   I am using "Simple Data Writer" to store the results in file. Here is
>> one line from my log file:
>>
>> *<httpSample t="51" lt="51" ts="1364373983380" s="true"
>> lb="/tpcw1/TPCW_home_**interaction" rc="200" rm="OK" tn="Thread Group
>> 1-2" dt="text" by="9798"/>*
>>
>> In above, time stamp is getting logged with other thread details.  I want
>> to log "*thoughput*" also which is not getting logged shown above.
>>
>> Thanks,
>> vivek
>>
>
>
Hi,

The above method suggested helps to get the throughput when we stop the 
running test in JMeter. I need to capture the current throughput when 
the JMeter is running. We can see the through put values changing when 
running the JMeter, but the question is : How to capture this in a file 
with local time stamp.



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Re: Not able to log "throughput" in a log file

[Darren Bown <da...@gmail.com>]

Hi Vivek,

Sorry, I misunderstood. If you use the Aggregate Report and write the
results out, that will give you a running throughput total, in the
second-to-last column. Check out the documentation for more detail.

Darren.


On 27 March 2013 08:59, vivek <vi...@iiitb.net> wrote:

> On 27/03/2013 16:30, Darren Bown wrote:
>
>> HI Vivek,
>>
>> How are you capturing the logs? Are you using a Simple Data Writer or are
>> you writing out the reports using the 'Aggregate Report' listener? If you
>> add the path to your report to the 'Filename' field above the results
>> pane,
>> that's where you'll find the results logged.
>>
>> Hope this helps.
>>
>>
>> On 27 March 2013 08:16, vivek <vi...@iiitb.net> wrote:
>>
>>  Hi,
>>>
>>> I am not able to log the throughput during the run in a log file. I can
>>> see the values in the in "aggregate results" but cannot find in log file.
>>>
>>> I want to log the *timestamp , throughput *in a file for a particular
>>> JMeter run.
>>>
>>> Please help.
>>>
>>> Thanks,
>>> vivek kumar singh
>>> National University of Singapore
>>>
>>>
>>
>>  I am using "Simple Data Writer" to store the results in file. Here is
> one line from my log file:
>
> *<httpSample t="51" lt="51" ts="1364373983380" s="true"
> lb="/tpcw1/TPCW_home_**interaction" rc="200" rm="OK" tn="Thread Group
> 1-2" dt="text" by="9798"/>*
>
> In above, time stamp is getting logged with other thread details.  I want
> to log "*thoughput*" also which is not getting logged shown above.
>
> Thanks,
> vivek
>



-- 
Darren Bown
tel:* +44(0)*7873 163 452
tel: *+44(0)7971 078 445*

Re: Not able to log "throughput" in a log file

[vivek <vi...@iiitb.net>]

On 27/03/2013 16:30, Darren Bown wrote:
> HI Vivek,
>
> How are you capturing the logs? Are you using a Simple Data Writer or are
> you writing out the reports using the 'Aggregate Report' listener? If you
> add the path to your report to the 'Filename' field above the results pane,
> that's where you'll find the results logged.
>
> Hope this helps.
>
>
> On 27 March 2013 08:16, vivek <vi...@iiitb.net> wrote:
>
>> Hi,
>>
>> I am not able to log the throughput during the run in a log file. I can
>> see the values in the in "aggregate results" but cannot find in log file.
>>
>> I want to log the *timestamp , throughput *in a file for a particular
>> JMeter run.
>>
>> Please help.
>>
>> Thanks,
>> vivek kumar singh
>> National University of Singapore
>>
>
>
I am using "Simple Data Writer" to store the results in file. Here is 
one line from my log file:

*<httpSample t="51" lt="51" ts="1364373983380" s="true" 
lb="/tpcw1/TPCW_home_interaction" rc="200" rm="OK" tn="Thread Group 1-2" 
dt="text" by="9798"/>*

In above, time stamp is getting logged with other thread details.  I 
want to log "*thoughput*" also which is not getting logged shown above.

Thanks,
vivek

Re: Not able to log "throughput" in a log file

[Darren Bown <da...@gmail.com>]

HI Vivek,

How are you capturing the logs? Are you using a Simple Data Writer or are
you writing out the reports using the 'Aggregate Report' listener? If you
add the path to your report to the 'Filename' field above the results pane,
that's where you'll find the results logged.

Hope this helps.


On 27 March 2013 08:16, vivek <vi...@iiitb.net> wrote:

> Hi,
>
> I am not able to log the throughput during the run in a log file. I can
> see the values in the in "aggregate results" but cannot find in log file.
>
> I want to log the *timestamp , throughput *in a file for a particular
> JMeter run.
>
> Please help.
>
> Thanks,
> vivek kumar singh
> National University of Singapore
>



-- 
Darren Bown
tel:* +44(0)*7873 163 452
tel: *+44(0)7971 078 445*