I have a performance test plan in Jmeter. As a constant running test plan, I need to generate execution summary in CSV format with a timestamp.
In the View Result Tree, I have provided a csv filename with timestamp variable as '${__time(YYYY-MM-DD-SS,time)}' (Please see image below). But this doesn't work for me as it is not generating any files after the run.
Or is there any way we can generate summary report csv with different name for each run?
It is not recommended to use Listeners for anything but tests development and/or debugging, they don't add any value and consume a lot of resources because all the thread context is being passed to the listener when any Sampler occurs.
So I would recommend:
Removing all listeners from your test plan
Run your test in command-line non-GUI mode
If you need to include the timestamp into the .jtl results file you can use Windows date and/or time commands
jmeter -n -t test.jmx -l %date:~10,4%-%date:~4,2%-%date:~7,2%.csv
You can control what is being stored in the .jtl results file using properties responsible for the Results File Configuration
Related
I have created a test plan in Jmeter which executes certain queries and store elapsed time in csv file. I need to save row count against each sampler request. How can I achieve this?
Below is my CSV file configuration
Don't use any of JMeter Listeners to store test results, they don't add any value and create memory and disk IO overhead instead. You should be running your tests in command-line non-GUI mode like
jmeter -n -t test.jmx -l result.jtl
and when your test is finished either open result.jtl file with the listener of your choice or generate HTML Reporting Dashboard from it.
Coming back to your question. Given you have a JMeter Variable holding some "interesting" value and you would like this variable value to be added to test results just define sample_variables property and put the variable name there. For example, if you have JMeter Variable called rowcount add the next line to user.properties file:
sample_variables=rowcount
and next time you run your test you will see an extra column in the .jtl results file called rowcount holding the variable value for each and every sampler. See Sample Variables User Manual chapter for more details.
I have a jmeter test plan that is composed of a single threadgroup a number of custom java request samplers as children of the thread group and an aggregation listener.
The aggregation listener is writing to a file which includes a row for each invocation of each one of the java samplers. However it is not performing or writing any aggregations.
The default summary however is being produced and written to the log and that contains the aggregated requests/per second etc that I would expect from the aggregation listener.
Can anyone tell me how to either :a) Get the aggregation listener to produce aggregations rather than just a csv file containing rows with the results of each java sampler request? b) Redirect the output of the default test summary to another file?
Don't use listeners as they don't add any value, they just create memory and disk IO overhead. You should be running your JMeter test in command-line non-GUI mode telling JMeter to store the results in a file using -l command-line argument like:
jmeter -n -t test.jmx -l results.jtl
Once your test is done you should be able to open results.jtl file with the listener of your choice and see the results and export them into a file if needed. See Greedy Listeners - Memory Leeches of Performance Testing guide for detailed explanation regarding why you should not be using JMeter Listeners for anything but tests development and/or debugging
If you need to generate the Aggregate Report in unattended manner without interim manual step you will need JMeterPluginsCMD Command Line Tool, using it you will be able to generate different tables and charts from the .jtl results files
For the moment you have only 2 options of storing summariser output: [stdout] (console)5 and jmeter.log file. You can play with JMeter log4j configuration to choose what you want to store there.
To get summarized results add to your test plan Generate Summary Results:
Generates a summary of the test run so far to the log file and/or standard output
Update interval in jmeter.properties to your needs
# interval between summaries (in seconds) default 3 minutes
#summariser.interval=30
When I run the test in GUI, i see the Average, Min, Max in GUI. But when I run in console, is there a way to add these to the csv file?
These values are being calculated so you will be able to see the values only when you open .jtl results file after test finishes in the listener of your choice, i.e. Aggregate Report or Summary Report.
If you want to see the interim statistics while your test is being executed you have the following choices:
JMeter Summarizer output. JMeter reports some numbers into stdout while your test is being running
You can get some extended information if you run your JMeter test using Taurus tool as a wrapper
Both console and web interface options are available, in order to see current test execution stats in browser start your test like:
bzt yourtest.jmx -report
And finally you can use Backend Listener to send your results into database, message queue or web service and use custom plotting application to print out either raw or parsed statistics, here you are limited only by your fantasy:
More information:
JMeter: Real Time Results
How to Use Grafana to Monitor JMeter Non-GUI Results
JMeter produces some basic fields/result_field. JMeter doesn't create everything you see in different types of Listeners.
You can give this a try.
Create a plan
Generate atleast 100 samples (As large amount of data is required for some listeners), using a single sampler (request)
Use as many Listeners as you want of different types (say 15 types of listeners)
Run the plan....
Now in the filename field of all the listeners give series of names of files like a1.jtl a2.jtl
and so on....
see the screen shot
enter image description here
Now again run the plan. Go to the files and open them in some good editors like notepad++.
For your surprise you will find the same data in all the files irrespective of the type of listener generating the file.
Crux of the matter is : JMeter gathers only handful of information from the run, the rest information which is shown in different Listeners is COMPUTED by the JMeter.
So you can read the *.jtl file into any of the listener.
In JMeter, the new way since 3.0 to have results is to use the Web report generated at end of test:
http://jmeter.apache.org/usermanual/generating-dashboard.html
I have extracted the data from the response using jmeter's Regular expression extractor.Now i need to print those extracted values in excel.How to do that please help me out.I will be using multiple thread and all those output should be printed in excel as well.
The easiest way it to add the value to JMeter's .jtl results file, just take the next steps:
Add the following line to user.properties file (located in JMeter's "bin" folder)
sample_variables=your_variable_reference_name
or
pass the parameter via -J command-line argument like:
jmeter -Jsample_variables=your_variable_reference_name -n -t test.jmx -l result.jtl
Restart JMeter to pick the change up
Next time you run your JMeter test you will see an extra column in the .jtl results file containing the variable from regular expression extractor value for each sampler
References:
Sample Variables Property
Apache JMeter Properties Customization Guide
Another approach (for example if CSV format is not suitable for some readon) would be adding Apache POI libraries to JMeter Classpath and using JSR223 Test Elements to create and/or update Excel file, but this approach is harder as you will need to avoid concurrent writes or do in in i.e. tearDown phase to avoid race conditions and data loss.
See Busy Developers' Guide to HSSF and XSSF Features for example code for working with Excel documents using Java/Groovy.
I'm using Jmeter for various performance and load tests and would like to save summary of Summary report and aggregate report automatically when test is done.
Usually summary table when you running form GUI looks like this :
Label | Samples | Average | Min |Max |Error |Throughput |etc.
When I use Write results to file/ Read form file filed , generated report will contain all http requests I generate, it can be millions. File would be huge and even then, no summary on the end . **No average time **
Same situation for aggregate report, I can not auto generate Summary of aggregate reports same as when you use GUI mode. Saved file contain all requests which is not useful at all.
Can I force Jmeter to save those two summaries when test is over ?
thanks in advance
First of all, don't run your test using GUI. Run your JMeter test using command-line non-GUI mode as
jmeter -n -t /path/to/testplan.jmx -l /path/to/results/jtl
Second, disable all the listeners during test run. Once test execution is finished you will be able to open JMeter's GUI, add Listener of your choice to Test Plan or Workbench and use "Browse" button to locate your results.jtl file.
JMeter cannot display only summary as all the "Total" fields are being calculated.
№ Samples - is count of all executed requests
Average - is arithmetical mean of all requests time (sum of all samples elapsed time divided by count)
etc. See JMeter Glossary for metrics explanation
So you got the idea right, it is better to store the necessary minimum, but you need to store something in order to be able to perform results analysis.
You can control what to store by amending properties which names start with jmeter.save.saveservice.. See jmeter.properties file in bin folder of your JMeter installation for the details.