rust get cpu band freq in rust

You can use the sysinfo crate in Rust to get the CPU frequency (in Hz) in a Linux system. Here's an example code snippet to get the CPU frequency:

main.rs
use sysinfo::{System, SystemExt};

fn main() {
    let mut sys = System::new_all();
    sys.refresh_cpu();

    // Assuming only one processor
    if let Some(cpu) = sys.get_processors().values().next() {
        println!("CPU Frequency: {} Hz", cpu.get_cpu_usage());
    }
}
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Make sure to add sysinfo crate to your Cargo.toml:

[dependencies]
sysinfo = "0.23.3"
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Additionally, this code will work for Linux systems, but if you want to get CPU frequency on other systems, you'll need to use different approaches.

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