Thursday, January 28, 2010

Tip #4: Using JMeter properties

Sometimes I need to modify some parameters in the Test Plan and it requires me to start JMeter, open the Test Plan file and edit these parameters there. But it's better to use JMeter properties for this task. Look at the image below.



There are JMeter properties used as values of "Number of Threads (users)" and "Loop Count" options: ${__P(users)} and ${__P(count)}. Also we must add two parameters to JMeter command line:

jmeter -t TestPlan.jmx -Jusers=10 -Jcount=50

Now you can specify necessary parameters on the fly. I recommend you to use properties for the following options: number of users, loop count, host, port, results and data filenames, etc.
Posted by at 12:11 AM
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17 comments:

  1. AnonymousJuly 16, 2010 at 1:46 AM

    We're new to jmeter and this is an eye-opener in terms of being able to automate it; thanks for this post!

    ReplyDelete
  2. AnonymousMay 6, 2011 at 2:28 PM

    Awesome Really ! ...Saurabh

    ReplyDelete
  3. AnonymousOctober 18, 2011 at 12:16 PM

    Very helpful..Thanks

    ReplyDelete
  4. AnonymousDecember 21, 2011 at 5:14 PM

    Hi very help full but how can I replace the endless bucle? Thanks

    ReplyDelete
  5. AnonymousJune 13, 2012 at 6:47 PM

    nice,thx

    ReplyDelete
  6. Zachary YoungJune 19, 2012 at 10:43 PM

    Thank you, was wasting time trying to set a variable from the command line.

    ReplyDelete
  7. Lokesh MJuly 12, 2012 at 3:12 PM

    Surprised me greatly... useful tip

    ReplyDelete
  8. AnonymousAugust 13, 2012 at 4:28 PM

    Does this work in non-GUI mode, meaning when i start JMeter with jmeter-n.cmd?

    ReplyDelete
  9. AnonymousSeptember 17, 2012 at 6:59 PM

    Is there a way to set as a property file? Thanks

    ReplyDelete
    Replies
    1. UnknownSeptember 18, 2012 at 9:38 PM

      You can specify any value as a property, i.e. integer number, floating-poing number, string, etc. There are no limitations.

      Delete
  10. UnknownNovember 15, 2012 at 9:35 AM

    Hi Victor,
    I have a question, can I re-read the value in properties file without restarting jmeter? For example, I have started jmeter by the command 'jmeter -nt sms.jmx -p sms.properties', but I want to change the value in the property file when jmeter is still running. Can jmeter read the new value without being restarted? Thank you in advance.

    BR
    /Lisa

    ReplyDelete
    Replies
    1. UnknownNovember 16, 2012 at 11:49 PM

      I'm not sure that this is possible. You can try to use __setProperty function for changing the property value at runtime.

      Delete
  11. irfanJanuary 30, 2013 at 7:48 AM

    Hi Victor,

    I have provide
    Number of Threads(users) - ${__P(users)}
    Ramp-up Period(in seconds) - 1
    Loop Count: Forever

    and did Scheduler Configuration where my Start time and Start date were past and provide the duration as 300.

    I expect my request to run for 300 seconds and to generate 300 requests. But it generated only one request.

    Now as option2 i have proivded my loopcount as 300 but stil only one request was run.

    As a last option i wanted my threads to run for 300 seconds, so i have set
    Number of Threads(users) - 1
    Ramp-up Period(in seconds) - 1
    Loop Count: 300

    I expect 300 requests should run for 300 seconds, but they got run in just 3 to 4 seconds.

    Any help

    ReplyDelete
    Replies
    1. UnknownFebruary 12, 2013 at 1:01 PM

      Number of Threads(users) - 300
      Ramp-up Period(in seconds) - 1
      Loop Count: 1

      Does it make sense?

      Delete
  12. AnonymousMarch 7, 2013 at 10:08 AM

    Thank you very much! This is very helpful!!!

    ReplyDelete
  13. AnonymousMarch 11, 2013 at 12:11 PM

    This is what I was looking for. Thanks dude.

    ReplyDelete

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