Bonnie++ is a benchmarking suite for measuring disk and filesystem performance. Based on the original Bonnie program by Tim Bray, it provides a collection of tests designed to examine how storage systems behave under different workloads.
The software measures sequential data transfer, random seeks and file metadata operations. These tests help identify differences between storage devices, filesystem configurations and operating system environments.
Bonnie++ is particularly useful when comparing filesystems or investigating storage performance. Rather than reducing results to a single score, it reports separate measurements for different operations, allowing users to focus on the workloads that matter to their applications.
The suite also includes ZCAV, which examines throughput across different regions of a storage device. Benchmark results can be affected by caching, background activity and other system conditions, so consistent test configurations are important.
This is free and open source software.
Key Features
- Sequential write testing – measures performance when writing large amounts of data.
- Sequential read testing – evaluates storage throughput during continuous data reading.
- Random seek testing – measures the rate at which a storage system handles random seek operations.
- File creation testing – measures performance when creating large numbers of small files.
- Metadata operations – tests file creation, reading, status queries and deletion.
- Random file operations – examines filesystem behaviour when accessing and deleting files in irregular order.
- Filesystem comparison – provides separate measurements for comparing storage configurations and filesystems.
- Large file testing – supports workloads designed to reduce the influence of system caching.
- ZCAV testing – measures throughput across different regions of a physical storage device.
- Graphable results – produces information suitable for further analysis and visualisation.
- Direct I/O – supports direct I/O testing on compatible operating systems.
- Cross-platform support – runs on Linux and Solaris.
Website: www.coker.com.au/bonnie++
Support:
Developer: Russell Coker
License: GNU General Public License v2.0
Bonnie++ is written in C++. Learn C++ with our recommended free books and free tutorials.
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