Files
simple-rust-tests/__performance/print_perf/src/main.rs
2020-11-07 12:23:25 +08:00

35 lines
626 B
Rust

use print_perf::*;
// or explicit print_perf::{perf, Perf};
use std::time::Duration;
use std::thread::sleep;
fn add(a: i32, b: i32) -> i32 {
sleep(Duration::from_millis(100));
a + b
}
fn main() {
println!("main_1()");
main_1();
println!("main_2()");
main_2();
}
fn main_1() {
let add_p = perf!("add fn");
let result = add(4, 4);
add_p.end();
// ^-- prints: 0.100140446 (add fn) @ [src/main.rs:9]
assert_eq!(result, 8);
}
fn main_2() {
let p = perf!("add fn");
let _result = add(4, 4);
p.split("add");
let _div = _result / 2;
p.split("div");
p.end();
}