Want to test VM load for something like VMware DRS? There are several ways to test VM load, but a lot of tools just focus on CPU and are not usually multi-threaded. Andres Mitchell developed a tool to overcome these shortfalls. The tool is called Loadstorm. Loadstorm is a pretty simple utility to generate CPU and/or memory load within a virtual machine (or a physical server if you are still living in the dark ages). You can specify the number of threads to generate for CPU load and the approximate load each thread generates. You can also specify how much memory you want the application to consume. There's a timer so you can configure it to only generate the specified load for a set period of time, and system memory utilisation and system/per core CPU utilisation indicators within the application.