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KDiskMark vs fio: catalog facts
KDiskMark	fio
Free Free and open source.	Free Free and open source.
Linux	Linux, Command line
Simple interface over the fio benchmark engine Configurable block size, queues and threads	Highly configurable workloads through job files Many I/O engines for different storage paths
Linux only Relies on fio being installed	Steep learning curve for new users Command-line only, no built-in graphical interface
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0
No account needed	No account 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.