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Illumine IT disk-benchmark

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What Illumine IT disk-benchmark is

Illumine IT disk-benchmark is a free, open-source C command-line program for measuring storage performance on Linux and Windows. It benchmarks hard drives, SSDs, SAN disks, HBAs, RAID adapters, and storage controllers, and can test physical or virtual disks whether they are local or remote. Multiple threads simulate concurrent reads and writes. Sequential tests can be configured with random file sizes or delays, write-only mode, and adjustable read and write buffers. Results include per-thread and average read/write timings, summary results, and CPU and wall time. The program can print values in a format suited to spreadsheets and show system I/O information to help choose buffer sizes. Continuous runs are described for monitoring cloud-drive QoS, disk replication, and active/passive RAID swaps. Linux build instructions call for GCC and POSIX Threads; the Windows README describes building with TDM-GCC and offers a 64-bit binary download. Continuous tests with many threads, large files, and no delay can fill the tested disk and cause high CPU load. The project lists Michael Mountrakis as author and Illumine IT Consulting as its maker.

Who it suits

It suits users who want a free command-line tool for sequential storage benchmarks across local or remote physical and virtual disks. It may also suit administrators monitoring storage behavior over continuous runs, provided they account for the disk-fill and CPU-load warning.

What it does well

  • Benchmarks a broad range of storage devices and controllers.
  • Tests physical or virtual disks, local or remote.
  • Multiple threads simulate concurrent reads and writes.
  • Reports per-thread, average, CPU, and wall-time results.
  • Spreadsheet-friendly output and system I/O information are available.

What to know first

  • Random I/O tests are not supported.
  • It does not measure IOPS or latency.
  • Continuous heavy runs can fill disks and raise CPU load.

Limits

The listed benchmark scope excludes random I/O, IOPS, and latency measurement. Continuous tests with many threads, large files, and no delay can fill the tested disk and cause high CPU load.

Plans

PlanBilled and limitsPrice
disk-benchmarkopen-source C command-line toolFree

As github.com lists them, read 8 Oct 2026. The maker's own page has the final word.

Getting started

  1. Open the project website on GitHub.
  2. For Linux, build with GCC; POSIX Threads is the listed dependency.
  3. For Windows, use the described TDM-GCC build route or download the 64-bit binary.
  4. Run sequential benchmarks with the desired file-size, delay, write-only, and buffer options.

Verdict

Choose Illumine IT disk-benchmark for free sequential tests, configurable concurrent workloads, and command-line output. Look elsewhere if random I/O, IOPS, or latency measurements are required. Use care with continuous runs configured with many threads, large files, and no delay.

Questions

How much does Illumine IT disk-benchmark cost?

It is free; the listed plan is free.

Which platforms are listed?

Platform availability lists Linux and Windows. The broader supported-platform list also includes POSIX and MS-DOS.

Does it run random I/O tests or measure IOPS and latency?

No. The listed capabilities include sequential tests, but not random I/O tests, IOPS measurement, or latency measurement.

What storage can it benchmark?

It covers hard drives, SSDs, SAN disks, HBAs, RAID adapters, and storage controllers. It can test physical or virtual disks that are local or remote.

What should users know about continuous runs?

Runs with many threads, large files, and no delay can fill the tested disk and cause high CPU load.

Facts from Illumine IT disk-benchmark's own pages

Concurrent workloads
It simulates concurrent reads and writes using multiple threads. · github.com, 8 Oct 2026
Configurable tests
Options include random file sizes, random delays, write-only mode, and configurable read/write buffer sizes. · github.com, 8 Oct 2026
Continuous monitoring
The README describes using continuous runs to monitor cloud-drive QoS, disk replication, and active/passive RAID swaps. · github.com, 8 Oct 2026
Linux build
The Linux build instructions require GCC and list POSIX Threads as the only dependency. · github.com, 8 Oct 2026
Maker
The GitHub organization identifies itself as Illumine IT Consulting and lists Cyprus, Germany, UK, and Greece. · github.com, 8 Oct 2026
Output options
It can print values only for spreadsheet use and can print system I/O information to help set buffer sizes. · github.com, 8 Oct 2026
Purpose
A lightweight console program for benchmarking hard drives, SSDs, SAN disks, HBAs, RAID adapters, and storage controllers. · github.com, 8 Oct 2026
Results
It reports per-thread and average read/write timings, summary results, and CPU and wall time. · github.com, 8 Oct 2026
Safety limit
The README warns that continuous tests with many threads, large files, and no delay can fill the tested disk and cause high CPU load. · github.com, 8 Oct 2026
Storage coverage
The README says it can test physical or virtual disks that are local or remote. · github.com, 8 Oct 2026
Support
The README lists author Michael Mountrakis and an email address for contact. · github.com, 8 Oct 2026
Windows build
The README describes building on Windows with TDM-GCC and provides a 64-bit binary download. · github.com, 8 Oct 2026

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