Filebench

At a glance

• Editor score
  7.6 / 10
• Pricing
  Free plan
• Best for
  Custom application-style I/O workloads
• Free plan
  Yes
• Paid from
  Free
• Random I/O tests
  Yes
• Facts checked
  20 Sep 2026

• Where it wins

  • Defines custom workloads with its Workload Model Language
  • Reports per-operation throughput, IOPS, latency, and histograms
  • Supports random, sequential, direct, and synchronous-write testing

• Where it doesn't

  • Command-line execution requires locally compiled and installed software
  • Workload modeling requires defining filesets, processes, threads, and flowops
  • Directory platform coverage is limited to Linux

Our verdict on Filebench

Filebench is an open-source, command-line benchmark for file systems and storage devices. It is designed for engineers and performance teams that need to model application-style I/O rather than run only fixed disk tests. Its Workload Model Language lets users define filesets, processes, threads, and flowops, while predefined webserver, fileserver, and mailserver workloads provide starting points for common server patterns. Database server patterns and custom micro- and macro-benchmarks are also supported.

Filebench's pricing model is straightforward: the project is open source and available as a free benchmark. There are no paid tiers described in its published positioning. The software is compiled and installed locally, then workload files are executed from the command line. That delivery model fits teams that want control over benchmark definitions and execution environments, but it is not a hosted service with a browser-based workflow. The directory platform coverage is Linux.

The standout capability is workload depth. Users can configure filesets, processes, threads, and flowops; choose random or sequential reads and writes; and enable direct I/O or synchronous writes. Results include per-operation throughput, operations per second, and latency, with optional latency histograms. This makes Filebench a strong choice when benchmark results need to reflect specific application behavior and when latency matters alongside throughput. Choose it if you need configurable storage workload modeling at no software cost. An alternative may be more suitable if you prefer a graphical interface, hosted execution, or a simpler fixed-test workflow.

Your product? Our editors can test Filebench in depth and publish a review, labelled as paid · from $149/mo →

Filebench pricing

Filebench fact sheet

Alternatives to Filebench

• CrystalDiskMarkA configurable Windows disk benchmark with detailed speed, IOPS, and latency results.9.0
• FfioA free, open-source benchmark for detailed storage and filesystem performance analysis.8.8
• HTHD Tune ProA capable Windows drive benchmark and diagnostic utility with a one-time license.8.5

See all Filebench alternatives →

Filebench vs the competition

• FFilebench vs CrystalDiskMark
• FFFilebench vs fio
• FHTFilebench vs HD Tune Pro
• FFilebench vs AJA System Test
• FDFilebench vs DiskSpd
• FMFFilebench vs Modern FS Benchmark

Compare Filebench with any tool side by side →

Featured on iTechGuides

Filebench is listed in our Disk Benchmark Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update