如何用Rust获取CPU、内存、硬盘的信息？

目录

一、用Rust获取CPU、内存、硬盘的信息

二、知识点 systemstat

一、用Rust获取CPU、内存、硬盘的信息

        首先，需要添加systemstat库到Cargo.toml文件：

[dependencies]
systemstat = "0.8.2"

        在Rust代码中使用它： 

extern crate systemstat;

use std::io;
use systemstat::{MemInfo, System, CpuStats};

fn main() -> io::Result<()> {
    let mut cpu_stats = CpuStats::new()?;
    cpu_stats.update()?;

    let mem_info = MemInfo::new()?;

    let system = System::new()?;

    println!("CPU Usage: {:.2}%", cpu_stats.usage());
    println!("Total Memory: {} MiB", mem_info.total() / 1_048_576);
    println!("Free Memory: {} MiB", mem_info.free() / 1_048_576);
    println!("Total Disk Space: {} GiB", system.disks_total_space() / 1_073_741_824);
    println!("Free Disk Space: {} GiB", system.disks_free_space() / 1_073_741_824);

    Ok(())
}

二、知识点 systemstat

systemstat - RustThis library provides a way to access system information such as CPU load, mounted filesystems, network interfaces, etc.https://docs.rs/systemstat/latest/systemstat/

GitHub - valpackett/systemstat: Rust library for getting system information | also on https://codeberg.org/valpackett/systemstat

systemstat

A Rust library for getting system information/statistics:

• CPU load
• load average
• memory usage
• uptime / boot time
• battery life
• filesystem mounts (and disk usage)
• disk I/O statistics
• network interfaces
• network traffic statistics
• CPU temperature

Unlike sys-info-rs, this one is written purely in Rust.

Supported platforms (roughly ordered by completeness of support):

• FreeBSD
• Linux
• OpenBSD
• Windows
• macOS
• NetBSD
• more coming soon