I'm about a week into learning JMeter and I've run a few test scripts which generate a summary.csv which contains your standard ; Samples, Average, Median etc...
[My Question]
I was wondering if there was a way to add a threshold for the summary.csv so if Average time is higher than x amount of milliseconds, then the user will be informed that the specific result was slower than expected. (Maybe this can be displayed on the summary.csv, I'm not sure what my options are tbh on how to output this)
I am aware that we can use assertions (specifically duration assertion) through the test script but the issue I have with assertions is that it stops the test once an assertion fails, stopping it from generating a summary.csv
Thank you for any input/opinions you guys have :) It is much appreciated!
Have a great day and stay safe everyone!
They are there already and they're controllable by the following JMeter Properties:
jmeter.reportgenerator.apdex_satisfied_threshold
jmeter.reportgenerator.apdex_tolerated_threshold
there is also a property which can apply thresholds to specific samplers or Transaction Controllers: jmeter.reportgenerator.apdex_per_transaction
Just declare the properties with the values of your choice in the user.properties file and next time you generate the dashboard its APPDEX section will reflect the thresholds.
More information: JMeter HTML Reporting Dashboard - General Settings
Related
In Jmeter I have a scenario like
Load tested with 4000 users and 1 hour duration
759965 requests made and out of which one request failed on an average 18894.13 requests made per second.
This was the earlier scenario and I want to make the same scenario again with the above information. Can someone guide me how to set up the environment and also the results. I have designed my script using Co-relation with the help regular expression extractor.enter image description here
For the normal Thread Group the configuration would be something like:
It would also be a good idea to use some ramp-up period so the load would increase gradually and you could correlate increasing load with other metrics like response time or transactions per second.
You might also want to use one of Custom Thread Groups which can be installed as JMeter Plugins, they provide easy visual way to define the number of threads, test duration, ramp-up, ramp-down, time to hold the load, eventual spikes, etc.
Once you define your desired workload you should run your test in command-line non-GUI mode, with regards to the test results the easiest option is to generate HTML Reporting Dashboard
after running my performance script , the statistic report generated is quite confusing.
Response Time :6s minimum
90th pct:4.53s
95th pct:4.9s
How come minimum response time is greater then 90th and 95th percentile , am I doing something wrong here ?
It should not be the case, the relevant code lives under StatCalculator.java class
If you do believe that this is a JMeter bug - you should raise an issue in JMeter Bugzilla
The first thing they will ask you is your .jtl results file so if it doesn't contain top-secret information you can update your question with the .jtl file contents so we would be able to look into the issue as well.
P.S. Any chance you're using a Transaction Controller with non-default naming policy? If yes, it might have an impact on results
P.P.S. Any change you're using JMeter Plugins or amending sample results on the fly via Groovy scripting? If yes, it also may influence the test metrics
I have created a test plan in Jmeter and ran it for 10 users, it has run successfully without any error, as in the below screenshot of the listeners which I have added in my test plan.
In the above listeners, how may I come to know that the values of these fields Standard Deviation, Throughput, Median, Error% calculated as expected Or is there any ideal/expected/benchmark values of the above fields through which I compare and found that my test plan work as standard. Moreover how may I able to explain that the performance of my test plan is fine/good/better or best
Please suggest me thanks
It sounds like you don't really understand what you're doing so I would recommend starting with i.e. Performance Testing Guidance for Web Applications e-book.
With regards to the "values" - we have no any idea whether the "values" match your expectations. There are no any reference "values", normally your project should have non-functional requirements or SLAs which should define maximum response time or minimum number of hits per unit of time.
Check out JMeter Glossary to learn what the "values" mean.
If you don't have NFRs or SLAs defined you still can perform a stress test like:
Make sure that your JMeter test behaves like a real browser, at least I fail to see:
HTTP Cookie Manager
HTTP Cache Manager
HTTP Header Manager
You should be running your test in command-line non-GUI mode
Start with 1 virtual user and gradually increase the load until
you see the saturation point
you start seeing performance degradation
This way you will be able to state what is the maximum number of users you system can support without issues
I just want to get the aggregate report include a column for latency.
I have already tried uncommenting jmeter.save.saveservice.latency=true in bin/jmeter.properties.
I am currently using JMeter 3.3
Any help would be greatly appreciated. Thanks!
UPDATE:
A little hack I tried that kind of worked was adding a JSR223 PostProcessor with the following 3 lines of code:
long startTime = prev.getStartTime();
long latency = prev.getLatency();
prev.setEndTime(startTime + latency);
I say kind of worked because it is a hack and even though it was able to correctly reset the average column from load time to latency, it started throwing off the throughput values.
The end goal in my case is just to get the latency along with the other values by running the CMDRunner.jar on the JTL file to output the summary results CSV file.
You can't .
Alternatively why not use the Web Report that exists since 3.0 and that provides a lot of rich information much better than all existing listeners.
See:
https://jmeter.apache.org/usermanual/generating-dashboard.html
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.