I am a JMeter learner and you are supporting me to learn. I am very grateful to all.

I just wanted to know if I can customize the log columns. By default they are:

  • TimeStamp - unix timestamp of the request
  • elapsed - time elapsed
  • label - a label (page title or url)
  • responseCode - http response code
  • responseMessage - http response message
  • threadName - name of the jave thread that did the request
  • dataType - mime type of the response
  • success - boolean, true if request successful
  • bytes - size of the response body
  • Latency - latency in ms

eg: Can I display date instead of Timestamp in my log file?

  • 1
    I'm not into JMeter but maybe this helps you: jmeter-plugins.org/wiki/FFWTutorials
    – bish
    Dec 2, 2015 at 8:39
  • Don't know why do you want to modify the logs when you can use Listeners to interpret them.
    – Faiz
    Dec 2, 2015 at 11:07

2 Answers 2


You can, it is controllable by the following property:


It defaults to milliseconds since beginning of Unix Epoch

If you want to change the format, any valid SimpleDateFormat value will play, for instance yyyy/MM/dd HH:mm:ss.SSS

Add jmeter.save.saveservice.timestamp_format=yyyy/MM/dd HH:mm:ss.SSS to user.properties file (it's located under JMeter's /bin folder) and after JMeter restart you'll see different timestamps.

See Apache JMeter Properties Customization Guide for more detailed information on JMeter properties and ways of working with them.

  • I used Your answer and gets proper output what i was expecting
    – CSachdev
    Dec 5, 2015 at 12:19

Please go thru this link:

Can any one explain how the Jmeter listeners work

It will explain you how listeners in general work and how the log file is interpreted by the listeners.

  • I think it should be comment. Dec 2, 2015 at 11:31
  • 1449057501605,3168,femur-bone-model( Product Page),503,Service Unavailable,Thread Group 1-90,text,false,1593,100,100,3167 What is this error indicates????
    – CSachdev
    Dec 2, 2015 at 12:04

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