Compare Load Tests Results using CSV Data

RedLine13 provides detailed real-time and post-test metrics, but there may be certain cases where you want to compare load test results.  In this post, we will discuss some of the ways you can compare metrics both within the same test, and between multiple tests. Compare Results from Multiple Load Tests It is possible to compare results between multiple test runs by combining exports and using a spreadsheet application like Excel.  Below we have a graph whichRead More →

Enabling Public IPs on your RedLine13 Load Generators

One thing you must be aware of is ensuring that your load generators are visible to RedLine13.  This is accomplished through assigning public IP addresses.  In this post we will show you how to configure that and successfully run your first load test. What is a Public versus a Private IP? A public IP address refers to its ability to be accessed from external networks – e.g., the internet.  On the other hand, a private IPRead More →

JMeter Test Capacity Limits

Depending on your testing goals, whether using JMeter or something else, pushing your target application to a point of ultimate failure may be one of your objectives. In this post we will discuss what signs you might see in your load test when your target test application becomes “overwhelmed”. We will also explore some cases where problems in the test or the network can mimic an overwhelmed state. The extreme scalability of a cloud-based architecture enablesRead More →

Server Index is now a JMeter Property

JMeter tests running on RedLine13 with multiple load generators have visibility to the server “index” number as a JMeter property.  One of our customers was running large scale load tests across multiple servers.  They needed a way to correlate test plans running on individual server machines, something akin to the example described below.  Sometimes useful features come from our customers solving real-world issues, and this is an example of one such case. This property – rl13_agentindexRead More →

Simulate Slow Internet Connections with JMeter

When we think of performance testing, often the first thing that comes to mind are highly scaled systems generating as much traffic as possible. This is done because we consider the most extreme conditions a production environment will encounter is when many users (or a coordinated attack) converge at once. However, extreme conditions can also be encountered at the other end of the spectrum with poor quality network connections. For example, a RedLine13 customer discovered thatRead More →

View the JMeter Dashboard Report

When you begin running a test with RedLine13, our streaming results make it easy to monitor the performance of your JMeter test in real time.  Those results are updated with even more detailed information once your test completes.  Another useful feature available in our Premium plan includes the ability to view the JMeter Dashboard Report directly from your browser.  You can read more about this report in the JMeter official documentation.  There are many use casesRead More →

rerun a test

Have you ever had the need to run the same test more than once?  Or perhaps you’ve needed to run a similar test that only needed to be changed slightly. In these cases, it can be tedious and time consuming to re-enter all of the testing parameters and environment setup.  However, RedLine13 premium subscribers can duplicate any test with a single click! When you click on the “Clone” button, a copy of your test is created.Read More →

Capacity Reservations for Large Load Tests

Scalability is one of the greatest strengths of using a cloud-based architecture.  However, there are occasionally limitations to how quickly we can scale. This is especially true for high volume load testing.  In these scenarios, we need to instantaneously scale a practically nonexistent cloud architecture to our maximum desired size.  It is not always guaranteed that cloud providers like AWS will have these resources idle and waiting in the necessary quantities.  In this post we willRead More →

Log4j and RedLine13

A zero-day vulnerability was uncovered in the ubiquitous Log4j library.  This dependency is used for event logging purposes (as its name suggests).  However, the vulnerability allows for remote access and code execution on affected machines.  The fix is to use an updated version of this library (2.15.0 or higher) which prevents this. We conducted an internal code review at RedLine13 and we do not use Log4j (or related dependencies like Log4php) directly within our systems.  JMeter does however use Log4j and thusRead 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 →