Iometer Checks I/O Performance of Windows Systems

When you need a workhorse of a Windows PC, you have to install the fastest performing memory storage on that system. Even if you install an expensive SSD, your system might suffer from other factors such as slow performing RAM modules or motherboard issues. The only way too test how a system performs is through a benchmarking tool such as Iometer.

It is a benchmarking and stress loading tool for Microsoft Windows systems. It was originally designed by Intel but after they released the source-code of the tool in 2001, it has been updated regularly by open-source developers. If you want to stress test your system and test the input output performance then Iometer is the best.

Iometer has an old world user interface but it has no effect on its powerful features as it is a tool often recommended and praised by system experts. When we launch it, it shows the number of workers and then we have to assign disk targets and access specifications before we can use the test.


Typically, we select at least one of the workers, then select the disk targets for it, and then assign access specifications by choosing them from a list and clicking on the Add button. After this, we can start the benchmark test by clicking on the green flag button from the toolbar.

The results of the benchmark are saved in a  CSV file on the local storage media. The results can also be seen from the “Results” tab in the Iometer user interface. In the background it uses a program called “dynamo.exe” to stress the system and occupy all the available system resources. Similar to testing the storage media, we can use Iometer to test networked devices for which we have to assign network targets instead of the disk targets.

You can download Iometer from