Compare software

fio vs ATTO Disk Benchmark: catalog facts
fio	ATTO Disk Benchmark
Free Free and open source.	Free Free download from ATTO.
Linux, Command line	Windows
Highly configurable workloads through job files Many I/O engines for different storage paths	Free download from a storage hardware maker Measures both read and write performance
Steep learning curve for new users Command-line only, no built-in graphical interface	Little product detail on the vendor's pages Proprietary software
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.