In JMeter test, if any transaction takes long time to respond and then fails. Will that transaction be accounted in the calculation of average response time?
It will, you can check it yourself using i.e. Dummy Sampler and Aggregate Report listener combination:
If you don't want to see failed transactions in the results you can filter them out using Filter Results Tool
Related
Is there sum of all response times in JMeter HTML report?
I know JMeter produces excellent data like median etc, but there is need to have sum of all response times.
Is it possible to see it somehow?
JMeter's .jtl result files are normal CSV files so you can import it into MS Excel or equivalent and invoke SUM function on the elapsed column
If you have only one iteration and several requests - you can put all the requests under the Transaction Controller and it will report the cumulative execution time of all its children
It's possible to use Backend Listener so JMeter would send results to a database, once done you should be able to create a query in the DB or in Grafana to display the cumulative response time
I used option 2 from Dmitri's answer recently and it worked perfectly for me in JMeter 5.4.1.
In the Transaction Controller remember to click the "generate parent sample" tick box.
Then in the results tree and HTML dashboard, you will see individual response times for each call and a parent time for the controller.
I am trying to run the performance script which has API which takes the payload as file from S3 and submit to target system. After the request is completed I need to login to db and verify the status of the transaction. Here there is delay in getting inserted to db which is fast for payload with small file size. As I started submitting large files 1 GB to 15 GB, there will be delay in inserting a table.
So the JDBC request which has modified_date will be null for large payload. I have used constant timer but not sure how long it takes to insert in table.
Is there any way I can make jdbc request to wait till i get result for modified_date for message table.
You can put your JDBC Request sampler under the While Controller and use i.e. following jexl3() function as the condition:
${__jexl3("${modified_date}" == "null",)}
Once done you can use the Constant Timer for introducing the reasonable delay, i.e. run the JDBC Request each second or several seconds until the result is there.
More information: Using the While Controller in JMeter
I am trying to compare the performance difference between DELETE batch sizes using JMeter.
I have a table which I populate with a large amount of test data. Next, I have a JDBC Request that runs the following statement:
delete from tbl where (entry_dt < '2019-02-01') and (rownum <= 10000);
I want to keep running this until the table is empty, and record the time taken to clear the table.
I will run this thread multiple times to get an average execution time, and repeat this process for different batch sizes.
How should I define my While Controller to achieve this?
I read from other sites that I can use a Transaction Controller to time my process, but I am not familiar with this feature. How should I define my Transaction Controller to achieve this?
Add Transaction Controller to be a top level test element under the Thread Group
Add While Controller as a child of the Transaction Controller and use the following condition expression:
${__jexl3(${count_1} > 0,)}
Put your JDBC Request sampler as a child of the While Controller
Add JDBC PostProcessor as a child of the JDBC Request sampler and configure it like:
That's it, While Controller will iterate until there are entries in the tbl table and the Transaction Controller will record the cumulative time of all JDBC Request samplers executed.
I would do it this way:
Use the "JDBC Request - Get Count" sampler to get the data from the db which has to be deleted
Use a BeanShell Assertion to check if there is more data that can be deleted. Otherwise stop the thread
Execute the request to delete the data
Thread Group should stop Test on error
Configured a Test Plan where I have checked the option 'Generate parent sample' in Transaction Controller, in order to get the stats of individual transactions. And ran the test on Non-GUI mode, but I get identical same values in all columns of Aggregate Report, such as; Average, Median, 90% Line, Min, Max, etc.
Is it because of the configuration I did in Transaction Controller or any other settings need to be configured in the jmeter.properties file?
Thanks
It is absolutely expected assuming that your Transaction Controller ran once hence only one result is recorded. You will see the same output for any other singe sampler.
If you add more iterations on Thread Group level or via Loop Controller you should see differences.
Check out Using JMeter's Transaction Controller guide to learn more about Transaction Controller use cases.
I have created a test plan to stress test out MySQL DB. The test plan executes without errors, but the response times for JMeter are pretty much higher than when i actually execute query manually. With JMeter average response times are about 500 ms. While for the same query it takes 0.00 sec when run manually from console.
I am using JDBC samplers to execute queries which include INSERT, UPDATE, SELECT. Are there any best practice to make DB stress test as close to reality as possible. I was not able to find much on DB stress test with JMeter.