sysinfo
A cross-platform Rust library for retrieving detailed system information like CPU, memory, processes, disks, networks, and components.
What is sysinfo?
sysinfo is a Rust crate that provides comprehensive, cross-platform access to system information. It enables developers to programmatically retrieve hardware and software details, such as CPU usage, memory statistics, disk information, network interfaces, and process data, making it essential for building system monitoring tools, performance dashboards, and administrative utilities.
Rust developers building system monitoring applications, performance dashboards, administrative utilities, or any tool requiring real-time or periodic system data retrieval across multiple platforms.
Developers choose sysinfo for its broad cross-platform support (including Linux, macOS, Windows, Android, iOS, and BSD variants), performance optimizations like diff-based updates and configurable multithreading, and its ability to provide fine-grained control over data collection to minimize overhead.
Overview
Cross-platform library to fetch system information
Use Cases
Best For
- Building cross-platform system monitoring tools that need to run on Linux, macOS, Windows, Android, iOS, and BSD variants.
- Creating performance dashboards that require real-time CPU, memory, disk, and network usage statistics.
- Developing administrative utilities that list and inspect running processes with details like ID, name, and disk usage.
- Implementing hardware monitoring features, such as retrieving component temperatures on supported systems.
- Integrating system information into non-Rust projects via its provided C interface.
- Optimizing resource usage in embedded or constrained environments by disabling multithreading or using targeted refresh methods.
Not Ideal For
- Applications requiring real-time, high-frequency system data with zero latency, as sysinfo relies on refresh intervals and diff-based updates.
- Projects deployed in virtualized environments like Docker or WSL that need accurate hardware temperature readings, due to limited access to host sensors.
- Teams looking for a drop-in solution with graphical UI components for system monitoring, as sysinfo is a backend library focused on data retrieval.
- Binary distributions targeting the Apple App Store without enabling the 'apple-app-store' feature flag, which requires additional configuration.
Pros & Cons
Pros
Works on Linux, macOS, Windows, Android, iOS, FreeBSD, NetBSD, and Raspberry Pi, making it highly versatile for cross-platform applications, as detailed in the Supported OSes section.
Uses diff-based updates and provides targeted refresh methods like refresh_specifics to minimize overhead, with recommendations to reuse System instances for better performance, as emphasized in the README.
Allows disabling the default multithreading feature via Cargo.toml to reduce memory usage on platforms like macOS, offering flexibility for constrained environments.
Includes a C interface with examples and a Makefile, enabling usage in non-Rust projects and broadening its applicability beyond the Rust ecosystem.
Cons
On Docker and WSL, hardware information such as component temperatures may be incomplete or missing due to restricted access to host data, as explicitly warned in the README.
Building for embedded targets like Raspberry Pi requires additional toolchain setup and cross-compilation steps, which can be complex and time-consuming for developers.
Requires explicit calls to refresh methods to update information, which can lead to stale data if not properly handled, adding complexity and potential bugs in dynamic monitoring scenarios.
Frequently Asked Questions
Related Projects
whoamiRust library for getting information about the current user and environment.
nixinfoA lib crate for gathering system info such as cpu, distro, environment, kernel, etc in Rust.
sysexits-rsThe system exit codes as defined by <sysexits.h> for Rust
procsysRust library to retrieve system, kernel, and process metrics from the pseudo-filesystems /proc and /sys.
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