The purpose of the SyncTimer is to block threads until X number of threads have been blocked, and then they are all released at once. A SyncTimer can thus create large instant loads at various points of the test plan. Here’s how you can use JMeter SyncTimer for Load Testing. An Example – A Registration System Let’s say you’re load testing against a Racing Registration system. You have a JMeter script that pulls user information fromRead More →

Increasing the transaction levels and user levels can require you to tune your load tests. That may take some detective work. Here’s a real example. The Problem. A RedLine13 customer had an API test that ran for 12 minutes and generated around 500 transactions a second when run locally on their PC. Taking the same test running on Redline with 4 separate machines they expected to generate 2000 transactions but they were generating around 1040 transactions.Read More →

When companies are growing fast, their main concern is not scaling. Until it’s an issue.  This is part of maturing devops (development operations). They need, or will need, load testing. Then the questions come up. This blog post should be seen as practical load testing advice, along with the right questions, for any company that is grappling with the need to load test. Load Testing 101 Load testing is based on user requirements. For example, loadRead More →