HTTP Cache Manager – Why I should use it and an example. JMeter is not a browser, but JMeter provides config elements which helped to mimic the browser behavior and make your tests more realistic. “Cache manager” is used to simulate the browser caching behavior in Jmeter by adding caching functionality to HTTP requests within its scope. In general, a browser caches files locally including any documents that make up a website, such as HTML files, CSS styleRead More →

Apache JMeter provides a variety of assertions which are helpful to apply a few checkpoints with each request. However the assertion must be carefully used because it consumes resources (memory or CPU). Below is a list of JMeter assertions: Bean shell assertion: allow the user to write their bean shell script to perform assertion. Compare assertion: used to compare sample results within its scope Duration assertion: check the response time of the request, if the request takes longer timeRead More →

A quick guide for getting started with JMeter Recording 1 – Start your JMeter Recording with the Recorder Template Open JMeter and Select Templates from File menu Select the Recording Template and press ‘Create.’ You now have a test plan with some basics already configured Why use the template? The recording template will put in place a few items that are staples in JMeter tests. User Defined Variables are created empty, however, in many tests you are going toRead More →

Support has been added for JVM arguments when creating JMeter tests. One use case might be to increase allocated memory on an instance type for performance tuning of the agent. Please refer to java specific documentations for JVM Arguments. https://docs.oracle.com/javase/8/docs/technotes/tools/windows/java.html The setting of JVM args can impact proper test execution and impact ability to stop AWS instances. Use with caution.      Read More →

We have extended our JMeter Plugin support and built a framework to easily adapt new Plugins into our architecture.  We currently offer the common plugins and some new ones coming very soon. Standard Extras ExtrasWithLibs WebDriver Learn more about our WebDriver Support Hadoop Selecting the plugin will make sure the proper libraries are packaged with your test and if required ask for some extra property configuration.    Read More →

We are very excited to launch JMeter + Selenium WebDriver Plugin support (in Beta) on AWS. This little update makes it seamless to launch web driver tests at scale.  Create real user tests and generate images of the results as you would a normal Selenium tests. Tested  on our Linux (Ubuntu) images Chrome Firefox Key things to know  We do not provide support for Windows/IE support If folks find this feature useful we will continue toRead More →

Here is an example of a JMeter + WebDriver test written in JavaScript.  JMeter uses the Java WebDriver. This is a bridge between Javascript and you are scripting java – http://jmeter.apache.org/usermanual/functions.html#__javaScript In JMeter the driver is passed into the test. WDS object passed in Specifically we are provided an object called WDS with the following properties.  (from the docs).   Take special notice of WDS.browser as this is the WebDriver we use to drive our test. WDS.nameRead More →

Here is an example of a JMeter + WebDriver test written in Java.  Comments in-line. In JMeter the driver is passed into the test. WDS object passed in Specifically we are provided an object called WDS with the following properties.  (from the docs).   Take special notice of WDS.browser as this is the WebDriver we use to drive our test. WDS.name – is the value provided in the Name field (above). WDS.parameters – is the value providedRead More →

We have had an increasing number of JMeter users since we announced support several months ago. We have been adding minor big fixes and improvements along the way as we get feedback. We recently made a couple of changes for large JMX files (20MB was the customer example) and large set of config files (215 was the customer example). We just deployed the ability to upload and expand config files (supports .tar, .gz, .tgz, .zip). When uncompressedRead More →

At times, we want to know the performance of our database queries under load.  These type of load tests would rarely be tested from locations outside your infrastructure.  Opening holes directly to a database in the open would be a poor security model. Redline13 JMeter Load Testing allows you to easily deploy JMeter load plans inside your AWS domain and hammer away with your queries.  In this load test, we started a MySQL instance creating aRead More →