sysinfo

A system handler to interact with processes.

Support the following platforms:

Linux
Raspberry
Android
macOS
Windows

It also compiles for Android but never been tested on it.

Running on Raspberry

It'll be difficult to build on Raspberry. A good way-around is to be build on Linux before sending it to your Raspberry:

rustup target add armv7-unknown-linux-gnueabihf
cargo build --target=armv7-unknown-linux-gnueabihf

Code example

You have an example into the examples folder. Just run cargo run inside the examples folder to start it. Otherwise, here is a little code sample:

use sysinfo::{NetworkExt, System, SystemExt};

let mut sys = System::new();

// We display the disks:
println!("=> disk list:");
for disk in sys.get_disks() {
    println!("{:?}", disk);
}

// Network data:
println!("input data : {} B", sys.get_network().get_income());
println!("output data: {} B", sys.get_network().get_outcome());

// Components temperature:
for component in sys.get_components_list() {
    println!("{:?}", component);
}

// Memory information:
println!("total memory: {} KiB", sys.get_total_memory());
println!("used memory : {} KiB", sys.get_used_memory());
println!("total swap  : {} KiB", sys.get_total_swap());
println!("used swap   : {} KiB", sys.get_used_swap());

// Number of processors
println!("NB processors: {}", sys.get_processors().len());

// To refresh all system information:
sys.refresh_all();

C interface

It's possible to use this crate directly from C. Take a look at the Makefile and at the examples/src/simple.c file.

To build the C example, just run:

> make
> ./simple
# If needed:
> LD_LIBRARY_PATH=target/release/ ./simple

Benchmarks

You can run the benchmarks locally with rust nightly by doing:

> cargo bench

Here are the current results:

Linux

test bench_new                     ... bench:       3,741 ns/iter (+/- 252)
test bench_new_all                 ... bench:  10,491,084 ns/iter (+/- 450,925)
test bench_refresh_all             ... bench:   2,787,974 ns/iter (+/- 235,649)
test bench_refresh_components      ... bench:      24,270 ns/iter (+/- 1,127)
test bench_refresh_components_list ... bench:     370,693 ns/iter (+/- 51,925)
test bench_refresh_cpu             ... bench:      13,367 ns/iter (+/- 1,858)
test bench_refresh_disks           ... bench:       2,532 ns/iter (+/- 108)
test bench_refresh_disks_lists     ... bench:      50,359 ns/iter (+/- 5,877)
test bench_refresh_memory          ... bench:      11,713 ns/iter (+/- 1,006)
test bench_refresh_networks        ... bench:     220,246 ns/iter (+/- 24,294)
test bench_refresh_networks_list   ... bench:     229,648 ns/iter (+/- 82,050)
test bench_refresh_process         ... bench:      77,375 ns/iter (+/- 10,657)
test bench_refresh_processes       ... bench:   2,282,106 ns/iter (+/- 154,098)
test bench_refresh_system          ... bench:      52,466 ns/iter (+/- 4,710)

Windows

test bench_new                     ... bench:   7,688,460 ns/iter (+/- 1,230,010)
test bench_new_all                 ... bench:  24,098,860 ns/iter (+/- 5,260,950)
test bench_refresh_all             ... bench:   3,096,107 ns/iter (+/- 94,257)
test bench_refresh_components      ... bench:   1,205,378 ns/iter (+/- 40,071)
test bench_refresh_components_list ... bench:   3,181,602 ns/iter (+/- 102,533)
test bench_refresh_cpu             ... bench:         395 ns/iter (+/- 18)
test bench_refresh_disks           ... bench:      53,082 ns/iter (+/- 1,834)
test bench_refresh_disks_lists     ... bench:     114,080 ns/iter (+/- 1,920)
test bench_refresh_memory          ... bench:         596 ns/iter (+/- 48)
test bench_refresh_networks        ... bench:      37,549 ns/iter (+/- 1,622)
test bench_refresh_networks_list   ... bench:     667,180 ns/iter (+/- 59,859)
test bench_refresh_process         ... bench:         755 ns/iter (+/- 47)
test bench_refresh_processes       ... bench:   1,217,488 ns/iter (+/- 69,041)
test bench_refresh_system          ... bench:   1,214,780 ns/iter (+/- 52,013)

macOS

test bench_new                     ... bench:      56,861 ns/iter (+/- 5,653)
test bench_new_all                 ... bench:   4,634,509 ns/iter (+/- 1,604,369)
test bench_refresh_all             ... bench:   1,962,343 ns/iter (+/- 129,726)
test bench_refresh_components      ... bench:     294,752 ns/iter (+/- 45,107)
test bench_refresh_components_list ... bench:     895,672 ns/iter (+/- 112,586)
test bench_refresh_cpu             ... bench:      11,187 ns/iter (+/- 2,483)
test bench_refresh_disks           ... bench:         975 ns/iter (+/- 50)
test bench_refresh_disks_lists     ... bench:      25,955 ns/iter (+/- 3,159)
test bench_refresh_memory          ... bench:       3,440 ns/iter (+/- 198)
test bench_refresh_networks        ... bench:     211,552 ns/iter (+/- 16,686)
test bench_refresh_networks_list   ... bench:     211,138 ns/iter (+/- 22,644)
test bench_refresh_process         ... bench:       4,174 ns/iter (+/- 1,249)
test bench_refresh_processes       ... bench:     803,559 ns/iter (+/- 42,974)
test bench_refresh_system          ... bench:     365,762 ns/iter (+/- 55,893)

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