Modern FS Benchmark
Modern FS Benchmark: A deep Linux filesystem benchmark suite for repeatable performance and recovery comparisons. Ranked #6 of 29 in Disk Benchmark Software by our editors (7.7/10); pricing: Free plan; best for advanced Linux filesystem evaluation.
At a glance
- Editor score7.7 / 10
- PricingFree plan
- Best forAdvanced Linux filesystem evaluation
- Free planYes
- Paid fromFree
- Random I/O testsYes
- Facts checked20 Sep 2026
Where it wins
- Tests redundancy, snapshots, compression, rebuilds, and recovery
- Measures random and sequential I/O, IOPS, latency, and tail behavior
- Runs in GitHub Actions or on real hardware with JSON and dashboards
Where it doesn't
- Linux-only platform support
- Requires filesystem and hardware benchmarking expertise
- Focused on filesystem evaluation rather than general disk testing
Our verdict on Modern FS Benchmark
Modern FS Benchmark is an open-source Linux benchmark suite for comparing copy-on-write and classic filesystem stacks. It is designed for engineers evaluating btrfs, ZFS, bcachefs, ext4, and XFS across single-device, redundant, encrypted, compressed, snapshot, degraded, and near-full configurations. Alongside sequential and random read/write tests, it covers directory operations, fsync behavior, reflinks, rebuilds, corruption recovery, and ENOSPC behavior. Its command-line workflow and Linux focus make it a fit for advanced filesystem evaluation rather than casual disk checks.
Its strongest distinction is breadth of filesystem scenarios. The suite can compare redundancy layouts, age and scale snapshots, measure compression, inject corruption, run scrubs, and evaluate recovery. It also includes degraded-operation and rebuild tests, which extend evaluation beyond ordinary throughput or IOPS measurements. Fsync and other tail-latency measurements add detail for workloads where average performance does not tell the whole story. This makes the product useful when the question is how a filesystem behaves under changing capacity, protection, or failure conditions—not simply how fast a disk reads and writes.
For repeatable engineering workflows, Modern FS Benchmark supports GitHub Actions, NixOS, deploy-rs, and fio, with execution locally, in CI, or on dedicated hardware. JSON result output and published dashboard charts support repeated comparisons and reporting. The trade-off is a Linux-only scope and a specialized focus that assumes familiarity with filesystem layouts, storage configurations, and benchmark interpretation. Choose it for serious Linux filesystem comparison, CI-based regression tracking, and recovery-oriented testing; choose a simpler disk benchmark when basic sequential, random, or latency measurements are all you need.
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Modern FS Benchmark pricing
Modern FS Benchmark fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Random I/O tests | Yes |
| Sequential tests | Yes |
| IOPS measurement | Yes |
| Latency measurement | Yes |
| Supported platforms | Linux |
| Command-line interface | Yes |
| Deployment | Self-hosted |
| Platforms | Linux |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 4 integrations: GitHub Actions, NixOS, deploy-rs, fio |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
Modern FS Benchmark integrations
Modern FS Benchmark lists 4 integrations on its own site.
- GitHub Actions
- NixOS
- deploy-rs
- fio
Alternatives to Modern FS Benchmark
- CrystalDiskMarkA configurable Windows disk benchmark with detailed speed, IOPS, and latency results.9.0
- fioA free, open-source benchmark for detailed storage and filesystem performance analysis.8.8
- HD Tune ProA capable Windows drive benchmark and diagnostic utility with a one-time license.8.5
See all Modern FS Benchmark alternatives →
Modern FS Benchmark vs the competition
- Modern FS Benchmark vs CrystalDiskMark
- Modern FS Benchmark vs fio
- Modern FS Benchmark vs HD Tune Pro
- Modern FS Benchmark vs AJA System Test
- Modern FS Benchmark vs DiskSpd
- Modern FS Benchmark vs Filebench
Compare Modern FS Benchmark with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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