AJA System Test Lite
AJA System Test Lite is a macOS utility for measuring storage read and write performance for video production and other high-bandwidth workflows.
What is AJA System Test Lite?
AJA System Test Lite is a native macOS utility that helps users measure the performance of storage devices with tests modeled on real video workflow demands. It is designed for editors, media engineers, and other users who need to know whether a drive, SSD, RAID, or network storage target can sustain the data rates required for recording and playback. The app writes and reads test files, then reports throughput as data rate or frame rate so users can compare storage performance against project requirements. It also lets users choose settings such as resolution, color space, bit depth, compression type, and file container to approximate specific production and post-production scenarios. Graphs and reporting views make it easier to spot sustained-speed behavior over time rather than relying on a single peak number. Published by AJA Video Systems, it is commonly used as a focused benchmarking tool instead of a general system monitor.
Key features
- Measure read and write speed of local and networked storage volumes
- Run tests that emulate video production and post-production workloads
- Choose resolution, color space, bit depth, compression, and container settings
- View results as data rate or frame rate for workflow planning
- Track performance over time with graph-based reporting
- Use custom test file sizes for larger storage systems
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Safe
This is a legitimate storage benchmarking utility. It needs access to the drive or volume you choose for testing because it writes and reads test files to measure speed, which is normal for its purpose. Running tests can temporarily use disk bandwidth and free space, so avoid benchmarking a drive during critical transfers or active editing sessions. Remove any temporary test files if you no longer need them.
Recommendation: Keep AJA System Test Lite if you benchmark storage or work with video, media, or other high-throughput files. If you do not use storage speed testing, you can remove it without affecting macOS, though you may lose saved preferences and any convenience of having a quick benchmark tool available.
Common paths
/Applications/AJA System Test Lite.app
Preference paths
~/Library/Preferences/com.aja.performancelite.plist
Share your experience
Be the first to share your experience.