All the Ways to Compare JMeter Load Tests

In this post, we will review and compare the different approaches available for comparing two or more JMeter load tests. This is a task we are frequently asked, and the answer often depends ultimately on the requirements of your project. Some of these methods may be used to generate one-off comparisons, while others comprise a system of data collection for comparing many tests over extended runs. We will briefly explain the premise for each of theseRead More →

Compare JMeter Test Results

A common approach to load testing often involves running a series of load tests to ascertain the performance of a target test application. The question that is sometimes asked is how to compare JMeter test results from two or more runs of a similar JMeter test on the same graph. In this article we will show you how to compare the results of two separate load tests using the Merge Results plugin. In a previous postRead More →

Random Data in JMeter Performance Tests

In a related post, we discussed how to parameterize your JMeter tests from a CSV source file. In this article we will take things a step further, and show you how to introduce variability into your requests by pulling from your CSV source file to have random data in your JMeter performance tests. Random CSV Data Set Config Plugin Building upon the functionality of the CSV Data Set Config plugin that ships with JMeter, there isRead More →

Extracting Metadata from Load Generator Instances

RedLine13 load generator instances are backed by AWS EC2 instances. AWS exposes a special locally-addressable endpoint that returns metadata about that instance. Using this, you can ascertain such things as the region in which your instance resides, private and public addresses, and instance tags amongst other useful data points. A specific example of where this would be useful is where you have defined a load test to run in multiple regions, with a number of EC2-backedRead More →

Parameterizing JMeter Tests from a CSV Data Source

When designing a load test, it is a common goal to emulate real-world requests to the best extent possible. It is easy to generate thousands of requests with JMeter. However, there is often a need to generate many different requests. Using parameterization, this is a straightforward task. In this brief post, we will illustrate the steps of parameterizing your JMeter tests from a CSV data source. Step 1. The first element we want to add toRead More →

Million Concurrent User Load Testing

Load testing with a high concurrent user count can be challenging in many ways. This post will tell you about how one team did it with one million user testing with JMeter and the challenges they faced. Requirements Thinklogic, a Los Angeles based consulting firm specializing in web development and custom business software solutions, was tasked with quickly building and load testing a highly scalable web-based application that would handle one million concurrent users. The highRead More →

Your JMeter input files can now be split evenly across all your servers.   This can apply to CSV files or any other text file upload, typically provided by the JMeter CSV Data Set Config  The Split file option solves the issues of needing to deal with manually spreading data files between servers so each has a unique data set.    We automatically slice the file so each load server has about the same amount of lines.Read More →