How to calculate transaction rate per second10,000 for n current users using Jmeter?
I have added my users and Duration assertion and response assertion
Is this enough or do I need to add any constant throughput timer or do I need to do any calculations to see the transactions per second?
When you run JMeter in command-line non-GUI mode like:
jmeter -n -t /path/to/your/test.jmx -l /path/to/testresult.jtl
The testresult.jtl is a JMeter .jtl results file which contains all the necessary metrics and KPIs, see JMeter Glossary for descriptions of the measurements
In order to get the throughput you can see the throughput for each individual Sampler and overall throughput in i.e. Summary Report listener:
Another option is to use Transactions per Second chart, this way you will see the throughput over duration of the test
And last but not the least you can generate HTML Reporting Dashboard containing the result statistics table which includes the throughput and charts which also include throughput
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
I have a question related to JMeter, I have thread with config below:
Number of Threads (Users): 5
Ram-Up Period (In second): 5
Loop: Forever
Duration(seconds): 2
How many sample request are created with above config ?
I am using the JMeter version 5.0.
We don't know. It mostly depends on your application response time which is the main factor of Elapsed Time in JMeter.
The only way to get the number is to measure it
Run your test in command-line non-GUI mode as:
jmeter -n -t your-test.jmx -l result.jtl
Once test is finished open JMeter GUI, add a Listener of your choice, i.e. Aggregate Report to your Test Plan and open result.jtl file using "Browse" button - you should see the number of executed samplers as well as other metrics (response time, throughput, latency, etc.)
No of Threads=5 and Ramp up time =5 seconds.
So after every 1 second, next thread will be active.
So ideally it will process maximum 3 samples.
In jmeter Summary report, you could check the sample requests.
i am new to Load testing and would like configure my jmeter setting for the following requirement below. My understanding is Theard are different from request per second. If so what will be values in thread group for the below requirement.
"Initial load 20 request/second, increase load with 100 request/second for each minute.
Perform load test until we see an increase in latency "
You should put something very high into Thread Group and use one of the following approaches to define your load pattern:
Constant Throughput Timer - it comes bundled with JMeter
Throughput Shaping Timer or Concurrency Thread Group- available via JMeter Plugins project
In order to automatically stop the test when latency exceeds threshold you can use AutoStop Listener, again it comes with JMeter Plugins.
In general latency is networking related metric so even if your application is slow as a snail you can have low or even zero latency so I would recommend considering response time and/or transactions per second metrics as well.
I have 500 users in my csv file. I am doing load testing using jmeter. I want to run the script for first 100 hundred users. Once the execution for 100 concurrent user/Threads is done then I want to automatically increase the size of concurrent users to 200 and so on.
How I can achieve this ??
You can use Constant Throughput Timer to set throughput according to your test scenario. Despite its name it doesn't have to be "constant", you can put a variable into "Target Throughput" input so you'll be able to modify concurrency on the fly.
Another option which could be easier / more flexible is Throughput Shaping Timer available via JMeter Plugins
Is it possible to automate the load tests in Jmeter and increase the number of threads until the first error is observed?
For example I start with testing 16 threads for every seconds and increase the number until i receive an error. But instead of doing this manually can I let this run automatically?
Looking into Pre-defined Properties section of JMeter's User Manual on Functions there is a JMeterThread.last_sample_ok variable holding result of the last sampler execution.
So if you build your test plan as follows:
Sampler which does test action
If Controller checking whether previous sampler was successful
If not - relevant actions (stop test, send email, stop ramping up virtual users, etc.)
The value you need to put in "Condition" input of If Controller should look like
"${JMeterThread.last_sample_ok}"=="false"
See How to use JMeter's 'IF' Controller and get Pie for more information on JMeter's If Controller.
Regarding threads in jmeter You may find those 2 links interesting:
What is the highest number of threads that is reasonable to simultaneously run in Jmeter?
JMeter max. thread limit
Regarding your methodology, why not use slow rampup and see the limit using what Dmitri T has provided ?