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Bonnie++

Free#15 of 29 in Disk Benchmark SoftwarePC Benchmark Software

Bonnie++: A focused Linux benchmark for sequential, random, and filesystem operation testing. Ranked #15 of 29 in Disk Benchmark Software by our editors (6.9/10); pricing: Free plan; best for linux filesystem and file-operation tests.

6.9/10Editor score
Visit Bonnie++
Bonnie++6.9 Visit Bonnie++

At a glance

  • Editor score
    6.9 / 10
  • Pricing
    Free plan
  • Best for
    Linux filesystem and file-operation tests
  • Free plan
    Yes
  • Paid from
    Free
  • Random I/O tests
    Yes
  • Facts checked
    20 Sep 2026
Bonnie++ screenshot

  • Where it wins

    • Covers sequential I/O, rewriting, random seeks, and file operations
    • Exports results as plain text or CSV for analysis
    • Supports direct I/O and multi-process synchronization

  • Where it doesn't

    • Platform support is limited to Linux
    • Running tests can consume disk space and affect system performance
    • Does not provide verified latency measurement

Our verdict on Bonnie++

Bonnie++ is an open-source command-line benchmark suite for testing hard-drive and filesystem performance on Linux. It is suited to technical users who want direct control over benchmark workloads and result output. The suite measures sequential file output and input, file rewriting, random seeks, and file creation, metadata, and deletion operations. It also reports throughput, CPU usage, and per-second operation rates. Bonnie++ is available as a free, open-source product rather than a tiered commercial service.

Its main strength is workload coverage within a command-line workflow. The published feature set includes sequential file benchmarks, rewrite testing, random seek testing, and file create, stat, and unlink tests. Direct I/O is available for bulk tests, while multi-process synchronization supports coordinated test runs. Results can be emitted as plain text for quick inspection or CSV for downstream analysis, making the tool practical for repeatable command-line measurement and comparison.

Bonnie++ is a focused choice rather than a broad, cross-platform disk testing application. Its supported platform is Linux, and it does not provide verified latency measurement. Tests should not be run on live production machines: they may severely affect system performance and consume disk space or inodes. Choose Bonnie++ when Linux filesystem behavior, sequential I/O, random seeks, and file operations are the priority. Choose an alternative when wider platform coverage or dedicated latency analysis matters more.

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

Bonnie++ pricing

Plans Free planFree Free to use — no paid tier required for the core job.
See plans on github.com

Bonnie++ fact sheet

Free planYes
Paid fromFree
Random I/O testsYes
Sequential testsYes
IOPS measurementYes
Latency measurementNot verified
Supported platformsLinux
Command-line interfaceYes
DeploymentSelf-hosted
PlatformsLinux
SupportDocs
Built forSolo, Small business, Mid-market, Enterprise (editorial estimate)
PricingFree plan
Websitegithub.com
Facts checked20 Sep 2026

Alternatives to Bonnie++

See all Bonnie++ alternatives →

Also Ranked In

Bonnie++ is ranked in 2 of our directories.

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Featured on iTechGuides

Featured on iTechGuides — Bonnie++ 6.9/10

Bonnie++ 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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