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Tech riderRev. 2 Oct 2026

KDiskMark

Ch 216.5of 65 PC Benchmark Software
  1. 1Runs onLinux
  2. 2CostsFree plan
  3. 3Random I/O testsYes
  4. 4Sequential testsYes
  5. 5IOPS measurementYes
  6. 6Latency measurementYes
  7. 7Supported platformsLinux
  8. 8Command-line interfaceYes
8 lines stated Written from the maker's own pages: github.com
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The KDiskMark homepage

Overview

KDiskMark is ranked #21 of 65 in PC benchmark software on Specifiction. It runs on Linux. There is a free plan.

KDiskMark plans and pricing

All plans
KDiskMark Free Open-source disk benchmark tool github.com · 2 Oct 2026

Compared on PC benchmark software

Free plan
Yesgithub.com
Random I/O tests
Yesgithub.com
Sequential tests
Yesgithub.com
IOPS measurement
Yesgithub.com
Latency measurement
Yesgithub.com
Supported platforms
Linuxgithub.com
Command-line interface
Yesgithub.com

Facts

Purpose
KDiskMark benchmarks HDDs and SSDs through a graphical interface built around Flexible I/O Tester (fio).github.com · 2 Oct 2026
Technology
The application is written in C++ with Qt and has no KDE dependencies.github.com · 2 Oct 2026
Configurable tests
Users can configure block size, queue count, and thread count for each test.github.com · 2 Oct 2026
Reports
KDiskMark can generate benchmark reports.github.com · 2 Oct 2026
Terminal interface
It offers an interactive full-screen terminal mode for systems without a graphical display.github.com · 2 Oct 2026
TUI configuration
The terminal interface supports settings including profile, file size, loops, storage, queues, threads, test data, page-cache flushing, O_DIRECT, and CoW detection.github.com · 2 Oct 2026
Downloads
The project says binaries are available on its GitHub Releases page and documents installation through Flathub and Linux distribution repositories.github.com · 2 Oct 2026
Snap package
The README says the Snap package is no longer maintained and will receive no updates.github.com · 2 Oct 2026
Authorization
The GUI and terminal interface request administrator privileges through PolicyKit; the README says SSH sessions usually deny authentication for non-local users.github.com · 2 Oct 2026
Dependencies
The listed required dependencies include Qt with Widgets and DBus, a PolicyKit agent, and Flexible I/O Tester with libaio.github.com · 2 Oct 2026
Languages
The README lists support for multiple languages, including English, Chinese, French, German, Japanese, Portuguese (Brazilian), and Spanish.github.com · 2 Oct 2026
Support
The project asks users to open an issue with ideas, criticism, or suggestions.github.com · 2 Oct 2026
Maintainer
The linked GitHub profile identifies JonMagon as Dmitry Sidorov.github.com · 2 Oct 2026

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Where it ranks on Specifiction

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Sources