JMeter perfmon plugin: dumped values units

[thierr...@gmail.com]

Hello,

 

I am using the perfmon plugin dumping values in a CSV output file. Reading some post on this topic I realized that some values dumped as output have been multiplied by 1000.

Hence I’d like to get validation on the value dumped unit, please comment the lines below if I am not right.

 

Metric to collect               Option                                  Unit

------------------------------------------------------------------------------------------------------------------------------------

Disks I/O                          readbytes                           “Metric Unit specified” per second (multiplied by 1000)

Disks I/O                          writebytes                          “Metric Unit specified” per second (multiplied by 1000)

Disks I/O                          free                                    “Metric Unit specified”

Network I/O                      bytesrecv                            “Metric Unit specified” per second (multiplied by 1000)

Network I/O                      bytessent                            “Metric Unit specified” per second (multiplied by 1000)

Memory                           scope:all                              % utilisation (multiplied by 1000)

Memory                           scope:per process                 % utilisation (multiplied by 1000)

JMX                                memory-usage                     “Metric Unit specified”

JMX                                memory-committed              “Metric Unit specified”

JMX                                gc-time                                Time spent (ms) in GC between to intervals

CPU                                scope:all                              % utilisation (multiplied by 1000)

CPU                                scope:per process                % utilisation for all cores (multiplied by 1000)

 

 

Also on Network I have sometimes negative values. How should I interpret these?

 

Thanks,

Thierry

[and...@blazemeter.com]

Hi,

All the values are multiplied by 1000 inside CSV file. This made because we want to maintain float part of values and JMeter's CSV writing facility do no support that. 

Negative values from Network are produced by underlying SIGAR API library, and most likely platform specific. Sorry, we can't do anything with this.

--

Andrey

[thierr...@gmail.com]

Hi Andrey,

Thanks for the quick answer, it really helps.

Negative values are occuring at low pace, I guess simply ignoring it would be fine.

Cheers,

Thierry