fio
6.6#4 in disk benchmark softwareFree planFree planLinuxmacOSWindows
Visit| Fact | fio | Modern FS Benchmark |
|---|---|---|
| Purpose | fio simulates user-defined I/O workloads to test performance or reproduce bugs. | Modern FS Benchmark continuously benchmarks multi-device copy-on-write filesystems, including btrfs, ZFS, and bcachefs, against ext4 and XFS baselines. |
| Support | The project mailing list is intended for discussion, bug reports, questions, and development; the documentation also directs bug reports to the mailing list reflector or GitHub page. | The maintainer invites issues and pull requests for workload, configuration, methodology, and filesystem suggestions. |
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fio suits people who need to define and run storage I/O workloads without writing a separate test program for each one. Its client/server mode may be useful when jobs need to run on remote hosts.
Modern FS Benchmark suits Linux users who want to compare filesystem behavior across a range of workloads. It is also suited to operators with dedicated self-hosted GitHub Actions runners, provided they account for destructive real-device runs.