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Head-to-head · Disk Benchmark Software

Filebench vs KDiskMark

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Filebench #7 in Disk Benchmark Software 7.6/10 Free plan Free plan✓ 5 of 5 features Visit Filebench
KDiskMark #9 in Disk Benchmark Software 7.4/10 Free plan Free plan✓ 5 of 5 features Visit KDiskMark

Filebench leads on 0 checks, KDiskMark on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreFilebench · 7.6/10
  • Free planboth

Filebench scores higher on our rubric for disk benchmark software: 7.6 against 7.4 out of 10; our editors rank them #7 and #9.

Filebench is the better fit for custom application-style I/O workloads. KDiskMark is the better fit for linux users wanting an interactive benchmark.

  • Filebench fits best

    Custom application-style I/O workloads

  • KDiskMark fits best

    Linux users wanting an interactive benchmark

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Side by side

Feature Filebench 7.6/10 Visit ↗ KDiskMark 7.4/10 Visit ↗
At a glance
Editor score 7.6 7.4
Ranking #7 in Disk Benchmark Software #9 in Disk Benchmark Software
Best for Custom application-style I/O workloads Linux users wanting an interactive benchmark
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Desktop
Platforms Linux Linux
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business
Features Filebench 5/5 · KDiskMark 5/5
Random I/O tests ✓ ✓
Sequential tests ✓ ✓
IOPS measurement ✓ ✓
Latency measurement ✓ ✓
Command-line interface ✓ ✓
Specs
Supported platforms linux Linux
Our review
Pros
  • Defines custom workloads with its Workload Model Language
  • Reports per-operation throughput, IOPS, latency, and histograms
  • Supports random, sequential, direct, and synchronous-write testing
  • Configures block size, queue depth, and thread count
  • Measures sequential, random, IOPS, and latency performance
  • Offers both a Qt graphical interface and interactive TUI
Cons
  • 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
  • Supports Linux distributions rather than multiple operating systems
  • Focused on storage benchmarking rather than broader system tests
  • Requires familiarity with benchmark settings for detailed comparisons
Our verdict

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…

Read the review →

KDiskMark is an open-source disk benchmark application for Linux distributions. It is designed for users assessing HDD and SSD performance through configurable storage tests, with both a Qt graphical interface and an interactive terminal…

Read the review →
  1. FilebenchDisk Benchmark Software 7.6Free plan
  2. KDiskMarkDisk Benchmark Software 7.4Free plan

Strengths and trade-offs

  • Filebench — 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

  • KDiskMark — where it wins

    • Configures block size, queue depth, and thread count
    • Measures sequential, random, IOPS, and latency performance
    • Offers both a Qt graphical interface and interactive TUI

    Where it doesn't

    • Supports Linux distributions rather than multiple operating systems
    • Focused on storage benchmarking rather than broader system tests
    • Requires familiarity with benchmark settings for detailed comparisons

More comparisons

All disk benchmark software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update