Best Practices for Carrying Out JMeter Tests
JMeter Test is the procedure performed using the Apache Jmeter performance testing tool. It allows us to test web applications for performance, stress, and load testing. It also configures static and dynamic resources. It makes it possible to perform various graphical analyses to test applications' performance.
Must Read Apache Server
There are some guidelines to handle the limitations of JMeter-
- Try to limit the number of threads.
- Try using a proxy server.
- Use variables.
- Try to reduce the requirement for resources
- Examine the JMeter logs
- Erase the local path from CSV
- File naming convention
Let us now understand the above factors one by one.
Using A Proxy Server
Proxy Server is a valuable tool to keep records of your testing. It also allows you to summarize the common elements of the sample you record.
Try To Limit The Number Of Threads
There is a predefined limit on the number of threads that can run with JMeter. This number is 300. This limit exists because of the capacity of the hardware. If you are wondering about the scenario where we increase the threads, the accuracy of the timing information will fall abruptly.
Using Variables
Some test plans require different values from other users or Threads. For instance, you may need that each user is given a unique ID for identification. This is easy to implement if we use JMeter variables wisely.
Erase the Local Path from CSV Data Set Config
If you are using an existing CSV data file that you created on your local computer, you should delete the existing local path (Current path of CSV file). If you don’t delete the local path, JMeter cannot find the CSV data file on your local PC.
Reduce Resource Requirement
The Graphical User Interface mode generally acquires a lot of memory. This leads to a lack of performance. We can employ some practices that reduce resource requirements.
- Insist on Non-GUI mode
- The “View Result Tree” listener consumes more memory and causes JMeter to run out of memory. Therefore, it is a good practice to disable the same.
- Turn off all JMeter graphs results.
- We should prefer the CSV test result format.
- Save the needed test result. There is no requirement to save the complete test results.
Keep A Check On the JMeter logs
The log files record any errors or faults in the Test Plan. If we check the log file, we can find the mistakes at the earliest.
Frequently Asked Questions
What is the basis of the working of JMeter?
JMeter handles the job of sending requests to a server by imitating a set of users. This data is used to calculate the statistics and assess the performance.
How is Proxy Server a good practice for JMeter?
Proxy Server is a valuable tool to keep records of your testing. It also allows you to summarize the common elements of the sample you record.
What is the limit on the number of threads that can run in the JMeter test plan?
Utmost 300 threads can run at a time. This limit is fixed.
What happens if you don’t delete the local path of the CSV file?
If you don’t delete the local path, JMeter cannot find the CSV data file on your local PC.
Why should we disable “View Result Tree”?
The “View Result Tree” listener consumes more memory and causes JMeter to run out of memory. Therefore, it is a good practice to disable the same.
Conclusion
This blog has provided the best practices to use JMeter to test web applications. It also provided an overview of the JMeter workflow. We hope this blog added to your knowledge.
For more information on JMeter, Refer to our other articles-
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