fio ☆
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Description:
I/O benchmark and stress test
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: System utilities
Tags: benchmark io performance storage testing
Install: brew install fio
About:
Fio is a versatile I/O benchmark and stress test tool designed to measure and analyze disk and storage system performance. It supports a wide range of I/O engines, storage types, and workload patterns, providing detailed metrics for performance tuning and validation.
Key Features:
  • Supports synchronous, asynchronous, and direct I/O operations
  • Extensive workload generation with flexible configuration
  • Detailed reporting including latency, throughput, and IOPS
  • Cross-platform with support for Linux, Windows, and macOS
Use Cases:
  • Benchmarking storage devices like SSDs and HDDs
  • Stress testing filesystems under heavy I/O load
  • Validating storage performance in virtualized environments
Alternatives:
  • bonnie++ – Older benchmark suite with less flexibility and modern I/O support
  • iozone – Filesystem benchmark tool focused on sequential operations
Version History
Detected Version Rev Change Commit
Sep 13, 2025 7:51pm 0 VERSION_BUMP 93001549
Oct 2, 2024 9:32pm 0 VERSION_BUMP 3151bdda
Sep 11, 2024 3:21am 0 VERSION_BUMP 4aac66fe
Oct 1, 2023 3:36pm 0 VERSION_BUMP a8d41618
May 23, 2023 1:42pm 0 VERSION_BUMP 44882907
Mar 14, 2023 8:05pm 0 VERSION_BUMP 49bcc9c9
Mar 14, 2023 8:05pm 0 VERSION_BUMP 46ac9f93
Nov 19, 2022 1:52am 0 VERSION_BUMP 93762df0
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