Configure JMeter Thread Counts

A very common practice in JMeter is to make the number of threads per server configurable by passing in as a parameter to your thread group. We recently received a question from RedLine13 customer University of California about this. Sundar Thiru, Manager of Performance and Automation Testing, asked how to configure JMeter thread counts per test in RedLine13. You simply launch this in RedLine13 and use Advanced JMeter Options to pass in your settings at runtime.Read More →

RedLine13 for Load Testing was launched by three guys who needed load testing for a site they were building and realized that there had to be a better solution than the existing high priced load testing tools. Now RedLine13 is hiring. We have an opportunity for someone who likes to work independently, learn new technologies and write great code. RedLine13 provides a free and low fixed cost service that helps companies set up and deploy load testingRead More →

Run your first RedLine13 Load Test

This tutorial describes how to run your first RedLine13 load test in minutes. Begin by logging into or creating your account, hit “Start Test”, and then click the “Simple Test” tab.  Next, begin to enter the parameters of your load test. In this example we will have 10 virtual users access StackOverflow. We have a 3 second ramp-up-time, a minimum delay of 500 ms, and a maximum delay of 10,000 ms: Below is a description ofRead More →

RedLine13 was built for JMeter Cloud Load Testing. That gives you several advantages. This allows you to scale your JMeter tests to any size. It works with Apache JMeter and other open source platforms and plugins. And you can easily make testing part of your CI/CD environment with Jenkins and other platforms. Background Before the cloud, testing was very expensive to run. The costs associated with running and maintaining the hardware needed for performance tests wereRead More →

load testing memory usage

Here are some customer questions and our answers about load testing memory usage and other topics. Load Testing Memory Usage Question: Can someone assist me to double check my Memory usage on this test? In “Free Memory” how do I check if we are running out of memory in our test? Do we follow the rule of 75% Threshold? Do we have a way to clean this list of tests (check image below) without deleting it?Read More →

Currently, the most popular approach for API testing is to send a JSON payload file instead of using data with parameters. This post will show how to do JMeter Load Testing with a JSON payload. To perform sending the JSON payload we need a different configuration. First, we need to add HTTP Header Manager into our HTTP Request in order to set Content-Type as application/json. We then put the JSON payload into the Body Data sectionRead More →

Application load testing for API endpoints can be done quite easily. You could even do this to compare different API platforms that you’re considering using. That’s what we’ll do here with a real case. Zip Code API’s have become very popular because of the data they can provide easily and inexpensively. For example, one API when passed a zip code returns the city, state, latitude, longitude, time zone and more. Another will return all zip codesRead More →

load testing q&a with RedLine13 customer ON24

This is a load testing Q&A we did with RedLine13 Customer ON24. ON24, Inc. is a San Francisco-based company that markets products and services based upon webcasting and virtual event and environment technology. ON24 is a privately held company whose primary venture capital investors are Goldman Sachs, Gold Hill Capital, U.S. Venture Partners, Canaan Partners and Rho Ventures. Christian Nguyen is the Load Test Engineer for ON24.  Load Testing Q&A RedLine13: You just renewed your RedLine13Read More →

We often talk about the very low AWS costs. We are usually referring to the AWS instances that run the load tests. There is another AWS cost that you should be aware of and that is the AWS data costs. It’s usually very low also as you can see here in this AWS post. But depending on your test, you may need to keep an eye on it. So this post will talk about AWS dataRead More →

Disclaimer: This post is for those still using Beanshell. However, you should know that the Philippe Mouawad, JMeter contributor, has asked us to pass on that everyone should “avoid Beanshell in favor of JSR223 + Groovy because Beanshell is old, slow and does not support Java 5 and upper syntax.” If you still will be using Beanshell for whatever reason, here are Beanshell for JMeter Best Practices. JMeter has powerful abilities to perform general tasks outRead More →