How to display dynamic variable in Jmeter report?

Question

I have a HTTP request , which will start at time , this value am storing in string variable beforetime String beforetime=${__time(,)}; Before Time ----> 1611822129009 This transaction will be saved in database with modified_date as 2021-01-28 13:08:30.923 I am extracting time from modified_date as below String CurrentTime1=${__groovy(${__groovy(Date.parse('yyyy-MM-dd hh:mm:ss.SSS','${Modified_date_1}').getTime(),)},)} ;

Now current time is --->1611822133322 the difference between this two is difference ---->4313

the difference between this two time is not actual time(it is calculated by converting to string), how to get the actual difference ? 2)I need to populate the difference time for each HTTP request dynamically in Jmeter report , can you help me to do this ?

Dmitri T Dmitri T · Accepted Answer · 2021-01-28T14:27:07

Given you have:

JMeter Variable ${before_time) with the value of 1611822129009
JMeter Variable ${modified_date) with the value of 1611822133322

You can calculate the difference and store it into another JMeter Variable using any suitable JSR223 Test Element and the following Groovy code:

def before = vars.get('before_time') as long
def after = vars.get('modified_date') as long

log.info('Before: ' + before)
log.info('After: ' + after)

def difference = after - before

log.info('Difference: ' + difference)

vars.put('difference', difference as String)

The above code subtracts before_time from the modified_date and stores the result into difference JMeter Variable

Now you can add the next line to user.properties file (lives in "bin" folder of your JMeter installation)

sample_variables=difference

and next time you run JMeter in command-line non-GUI mode the .jtl results file will contain the ${difference} variable value for each sampler. You can even plot the value as a custom chart in the HTML Reporting Dashboard

More information:

How to display dynamic variable in Jmeter report?

2 Answers