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use std::fs::File;
use std::io::Read;
use std::path::Path;
use std::sync::atomic::{AtomicU32, AtomicU64};
use substring::Substring;
pub struct LinuxPerformance {}
impl LinuxPerformance {
pub fn get_current_process_id() -> u32 {
unsafe { libc::getpid() as u32 }
}
pub fn get_cpu_cores() -> u32 {
match File::open("/proc/cpuinfo") {
Ok(mut fl) => {
let mut text = String::new();
match fl.read_to_string(&mut text) {
Ok(_) => {
let count = AtomicU32::new(0);
for line in text.lines() {
if line.starts_with("processor") {
count.fetch_add(1, std::sync::atomic::Ordering::Acquire);
}
}
return count.load(std::sync::atomic::Ordering::Acquire);
}
Err(err) => {
log::debug!("Read file error {}", err);
return 0u32;
}
}
}
Err(err) => {
log::debug!("Open File error {}", err);
return 0u32;
}
}
}
pub fn get_thread_count(_dw_process_id: u32) -> u32 {
let filename = format!("/proc/{}/stat", Self::get_current_process_id());
match File::open(filename) {
Ok(mut fl) => {
let mut text = String::new();
match fl.read_to_string(&mut text) {
Ok(_) => {
for line in text.lines() {
let items = line.split_whitespace().into_iter().collect::<Vec<&str>>();
if items.len() > 20 {
let thc = match items[19].parse::<u32>() {
Ok(t) => t,
Err(_) => 0u32,
};
if thc > 0 {
return thc;
}
}
}
return 0u32;
}
Err(err) => {
log::debug!("Read file error {}", err);
return 0u32;
}
}
}
Err(err) => {
log::debug!("Open File error {}", err);
return 0u32;
}
}
}
pub fn get_process_times() -> (f64, f64, f64) {
match File::open("/proc/stat") {
Ok(mut fl) => {
let mut text = String::new();
match fl.read_to_string(&mut text) {
Ok(_) => {
// let count = AtomicU32::new(0);
for line in text.lines() {
if line.starts_with("cpu ") {
let items =
line.split_whitespace().into_iter().collect::<Vec<&str>>();
if items[0] == "cpu" {
let total_user = match items[1].parse::<u64>() {
Ok(t) => t as f64,
Err(_) => 0f64,
};
let total_user_low = match items[2].parse::<u64>() {
Ok(t) => t as f64,
Err(_) => 0f64,
};
let total_sys = match items[3].parse::<u64>() {
Ok(t) => t as f64,
Err(_) => 0f64,
};
let total_idle = match items[4].parse::<u64>() {
Ok(t) => t as f64,
Err(_) => 0f64,
};
return (total_user + total_user_low, total_sys, total_idle);
}
}
}
return (0f64, 0f64, 0f64);
}
Err(err) => {
log::debug!("Read file error {}", err);
return (0f64, 0f64, 0f64);
}
}
}
Err(err) => {
log::debug!("Open File error {}", err);
return (0f64, 0f64, 0f64);
}
}
}
pub fn get_memory_usages() -> (u64, u64) {
match nix::sys::sysinfo::sysinfo() {
Ok(mem) => {
return (mem.ram_total(), mem.ram_total() - mem.ram_unused());
}
Err(err) => {
log::debug!("Error {}", err);
return (0u64, 0u64);
}
}
}
pub fn get_handle_count() -> u32 {
let path = format!("/proc/{}/fdinfo", Self::get_current_process_id());
match std::fs::read_dir(path) {
Ok(rs) => {
let count = AtomicU32::new(0u32);
for fl in rs {
match fl {
Ok(_) => {
count.fetch_add(1, std::sync::atomic::Ordering::Acquire);
}
Err(err) => {
log::debug!("Error {}", err);
}
}
}
count.load(std::sync::atomic::Ordering::Acquire)
}
Err(err) => {
log::debug!("Error {}", err);
return 0u32;
}
}
}
pub fn get_io_counter() -> (u64, u64) {
let path = format!("/proc/{}/io", Self::get_current_process_id());
match File::open(&path) {
Ok(mut fl) => {
let mut text = String::new();
match fl.read_to_string(&mut text) {
Ok(_) => {
let read_bytes = AtomicU64::new(0u64);
let write_bytes = AtomicU64::new(0u64);
for line in text.lines() {
if line.starts_with("read_bytes:") {
let numb_text = line.substring("read_bytes:".len() + 1, line.len());
match numb_text.parse::<u64>() {
Ok(t) => {
read_bytes
.fetch_add(t, std::sync::atomic::Ordering::Acquire);
}
Err(_) => {}
};
}
if line.starts_with("write_bytes:") {
let numb_text =
line.substring("write_bytes:".len() + 1, line.len());
match numb_text.parse::<u64>() {
Ok(t) => {
write_bytes
.fetch_add(t, std::sync::atomic::Ordering::Acquire);
}
Err(_) => {}
};
}
}
return (
read_bytes.load(std::sync::atomic::Ordering::Acquire),
write_bytes.load(std::sync::atomic::Ordering::Acquire),
);
}
Err(err) => {
log::debug!("Read file error {}", err);
return (0u64, 0u64);
}
}
}
Err(err) => {
log::debug!("Open File error {}", err);
return (0u64, 0u64);
}
}
}
pub fn get_network_io_counter() -> (u64, u64) {
let path = format!("/proc/{}/net/dev", Self::get_current_process_id());
match File::open(&path) {
Ok(mut fl) => {
let mut text = String::new();
match fl.read_to_string(&mut text) {
Ok(_) => {
let read_bytes = AtomicU64::new(0u64);
let write_bytes = AtomicU64::new(0u64);
for line in text.lines() {
let items = line.split_whitespace().into_iter().collect::<Vec<&str>>();
if items.len() > 10 {
match items[1].parse::<u64>() {
Ok(t) => {
read_bytes
.fetch_add(t, std::sync::atomic::Ordering::Acquire);
}
Err(_) => {
continue;
}
};
match items[9].parse::<u64>() {
Ok(t) => {
write_bytes
.fetch_add(t, std::sync::atomic::Ordering::Acquire);
}
Err(_) => {
continue;
}
}
}
}
return (
read_bytes.load(std::sync::atomic::Ordering::Acquire),
write_bytes.load(std::sync::atomic::Ordering::Acquire),
);
}
Err(err) => {
log::debug!("Read file error {}", err);
return (0u64, 0u64);
}
}
}
Err(err) => {
log::debug!("Open File error {}", err);
return (0u64, 0u64);
}
}
}
}