use pprof;
use std::sync::Arc;
#[inline(never)]
fn is_prime_number(v: usize, prime_numbers: Arc<Vec<usize>>) -> bool {
if v < 10000 {
let r = prime_numbers.binary_search(&v);
return r.is_ok();
}
for n in prime_numbers.iter() {
if v % n == 0 {
return false;
}
}
true
}
#[inline(never)]
fn prepare_prime_numbers() -> Vec<usize> {
let mut prime_number_table: [bool; 10000] = [true; 10000];
prime_number_table[0] = false;
prime_number_table[1] = false;
for i in 2..10000 {
if prime_number_table[i] {
let mut v = i * 2;
while v < 10000 {
prime_number_table[v] = false;
v += i;
}
}
}
let mut prime_numbers = vec![];
for i in 2..10000 {
if prime_number_table[i] {
prime_numbers.push(i);
}
}
prime_numbers
}
fn main() {
let prime_numbers = Arc::new(prepare_prime_numbers());
let guard = pprof::ProfilerGuard::new(100).unwrap();
let p1 = prime_numbers.clone();
std::thread::Builder::new()
.name("THREAD_ONE".to_owned())
.spawn(move || loop {
let mut _v = 0;
for i in 2..50000 {
if is_prime_number(i, p1.clone()) {
_v += 1;
}
}
})
.unwrap();
let p2 = prime_numbers.clone();
std::thread::Builder::new()
.name("THREAD_TWO".to_owned())
.spawn(move || loop {
let mut _v = 0;
for i in 2..50000 {
if is_prime_number(i, p2.clone()) {
_v += 1;
}
}
})
.unwrap();
let p3 = prime_numbers.clone();
std::thread::spawn(move || loop {
let mut _v = 0;
for i in 2..50000 {
if is_prime_number(i, p3.clone()) {
_v += 1;
}
}
});
loop {
match guard
.report()
.frames_post_processor(|frames| {
frames.thread_name = "PROCESSED".to_string();
})
.build()
{
Ok(report) => {
println!("{:?}", report);
}
Err(_) => {}
};
std::thread::sleep(std::time::Duration::from_secs(1))
}
}