- Load testing is a type of performance testing
- The testing determines a system's performance according to real-life conditions
- It confirms if the prsent infrastructure is enough to run the application
- Checks how much load a system can handle
- Helps to indenfity the maximum operating capacity of any applications
- The test idenfities the number of usrs that can work on an application coccurrenly
- Apache JMeter
- WebLoad
- LoadUI
- LoadRunner
- LeoLoad
- LoadNinja
- Apache JMeter
- Opensource & free of charge
- Used to test load testing functional behavior and measing performance
- Test applications and other functions
- (How it works) It can simulate 1000 - 10000 users accessing the website concurrently
| Name of Use Case | Example Use | Description | Important Notes |
|---|---|---|---|
| Performance Testing | Testing static and dynamic resources | JMeter tests both static resources (JavaScript, HTML) and dynamic resources (JSP, Servlets, AJAX). It helps identify the maximum number of concurrent users your website can handle. | Test results can be influenced by system resources (CPU, RAM) and network conditions. |
| Load Testing | Simulating multiple user access | JMeter simulates multiple user access to Web services concurrently, helping identify capacity limits and potential bottlenecks. | System resources and network conditions should be considered when interpreting test results. |
| Stress Testing | Finding the maximum load the web server can handle | Stress Testing is used to find the maximum load the web server can handle. When the load goes beyond the limit, the web server starts responding slowly and produces errors. | Stress testing helps identify the breaking point of your system. |
| Server Performance Analysis | Analyzing server performance under high traffic | JMeter is used to identify whether the web application under test can manage high traffic. It also analyzes a server’s overall performance when it is under a lot of strain. | Server performance analysis can help optimize your system for better performance. |
| Non-HTTP Testing | Testing databases or message queues | JMeter can test endpoints that aren't HTTP-based, such as databases or message queues. | JMeter can be used for a variety of testing scenarios, not just HTTP-based applications. |
- Free or charge
- Performance testing of applications
- Platform independent (Java based)
- Customizable
- Recording and playback
- Community support
(on MacOS X)
$brew install jmeter
$ jmeter -n -t LoadTestLocalhost.jmx -l Loading.csv$jmeter -n -t BingLoadTestLocalhostWithVariables.jmx -l BingLoadTestLocalhostWithVariables2.csv -e -o JMeterDashboard/TODO
GET/POST
We the the following API
https://api.openweathermap.org/data/2.5/weather?lat={lat}&lon={lon}&appid={API key}
ref. https://openweathermap.org/current
We need to register and to get a free API. Once we have an API, set a location (lat, lon) = -33.98728,151.0931381, which is a location in Connells Point, New South Wales 2221, Australia.
The API call for the location is
https://api.openweathermap.org/data/2.5/weather?lat=-33.98728&lon=151.0931381&appid=XXXXXXXXXXXXXXXXXXXX5f8a2
Here, we have:
- protocol: https
- Hostname: api.openweathermap.org
- Path: /data/2.5/weather
- First parameter name, first parameter value: lat, -33.98728
- Second parameter name, second parameter value: lon, 151.0931381
- Third parameter name, third parameter value: appid, XXXXXXXXXXXXXXXXXXXX5f8a2 (My API key at Open Weather Map)
Apply the values into JMeter settings and run
TODO
TODO
The prompt
Write a jmx file for JMeter version 5.6 load test.
JMX file name: LoadTestLocalhost.jmx (in XML format)
Define JMeter variables
- protocol: http
- servername: localhost
- target URL port: 8000
- main website: /
- blog post 80: "?p=80"
- blog page 2: "page_id=2"
Target website:
Target URLs
Requirements
- Threads
- Number of threads: 100
- Ramp-up period (seconds): 2
- Loop Count: 10