🦀 darwin-metrics

A Rust library providing native access to macOS system metrics through low-level system APIs. This crate offers efficient, safe, and async-capable interfaces for monitoring system resources on macOS.

🌟 Features

🖥️ System Monitoring

• CPU Monitoring

  • Per-core usage statistics
  • CPU model and frequency information
  • System load metrics (user, system, idle)

• Memory Analysis

  • RAM usage and availability
  • Swap space monitoring
  • Memory pressure levels

• GPU Information

  • Active GPU model detection
  • GPU utilization metrics
  • VRAM consumption tracking

📊 Resource Tracking

• Storage Metrics

  • Disk space utilization
  • I/O performance monitoring
  • Read/write speed tracking

• Power Management

  • Battery status and health
  • Charging state detection
  • Remaining battery time estimation

• Thermal Monitoring

  • Fan speed readings
  • CPU and GPU temperature tracking
  • System-wide thermal status

🔌 Additional Features

• Process Information

  • Running process enumeration
  • Per-process resource usage
  • Parent-child process relationship tracking
  • Process tree visualization

• Network Monitoring

  • Interface discovery and state tracking
  • Traffic statistics (bytes/packets sent/received)
  • Bandwidth calculations
  • Async network monitoring

📦 Installation

Add this to your Cargo.toml:

[dependencies]
darwin-metrics = "0.1.5"

🔧 Requirements

• macOS 10.11 (El Capitan) or later
• Rust 1.85 or later
• Xcode Command Line Tools

🚀 Quick Start

use darwin_metrics::{CPU, Memory, Gpu};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Get CPU information
    let cpu = CPU::new();
    println!("CPU cores: {}", cpu.cores());
    println!("CPU usage: {}%", cpu.usage()?);

    // Monitor memory
    let mut memory = Memory::new()?;
    memory.update()?;
    println!("Memory used: {:.2} GB", memory.used as f64 / 1_073_741_824.0);
    println!("Memory pressure: {:.1}%", memory.pressure_percentage());

    // Check GPU status
    let gpu = Gpu::new()?;
    println!("GPU name: {}", gpu.name()?);

    Ok(())
}

🎯 Feature Flags

All features are enabled by default, but you can selectively enable only what you need:

📈 Development Status

Currently in active development. See our roadmap for detailed development plans.

Development Progress

✅ Completed (v0.1.0)

• Initial project setup
• Core architecture and error handling
• CPU monitoring module with frequency data
• Memory monitoring with pressure levels
• GPU information and metrics
• Network interface discovery and traffic stats
• Disk space monitoring
• Process monitoring and hierarchy tracking
• Temperature sensors and fan speed tracking

🚧 In Progress (v0.2.0)

• Enhanced async support throughout
• Cross-platform abstractions (Linux/Windows)
• Metrics export to Prometheus/InfluxDB
• Performance optimizations
• Event-based monitoring

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

Development Setup

Setup Instructions:

1. Clone the repository:

   git clone https://github.com/sm-moshi/darwin-metrics.git
   cd darwin-metrics
   

2. Install dependencies:

   xcode-select --install  # Install Xcode Command Line Tools
   

3. Set up the Rust toolchains:

   rustup install beta stable
   rustup component add clippy rustfmt --toolchain beta
   

   Our workflow uses:

   • Beta toolchain for linting and formatting
   • Stable toolchain for building, testing, and releases

4. Build the project:

   cargo build --all-features
   

5. Run tests:

   cargo test --all-features
   

6. Format and lint your code:

   cargo +beta fmt
   cargo +beta clippy --workspace --all-targets --all-features
   

📝 How to Cite

If you use darwin-metrics in your projects, please include one of the following attributions:

Citation Formats

💻 For Software Projects

This project uses darwin-metrics (https://github.com/sm-moshi/darwin-metrics) by Stuart Meya.

📚 For Documentation or Technical Writing

darwin-metrics: A Rust library for native macOS system metrics, developed by Stuart Meya.
GitHub repository: https://github.com/sm-moshi/darwin-metrics

🎓 For Academic or Research Use

Meya, S. (2025). darwin-metrics: A Rust library for native macOS system metrics.
GitHub repository: https://github.com/sm-moshi/darwin-metrics

For more detailed attribution requirements, please see the NOTICE file.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

• Apple's IOKit, Foundation, Core Foundation, and Metal documentation
• objc2 crate by Mads Marquart
• The Rust and Swift communities
• Contributors to the core dependencies