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use std::time::{Duration, Instant, SystemTime};

pub fn count_time_qps(tag: &str, total: u128, start: Instant) {
    print_qps(tag, total, start);
    print_each_time(tag, total, start);
}

///count qps
pub fn print_qps(tag: &str, total: u128, start: Instant) {
    let time = start.elapsed().as_nanos();
    println!(
        "[count_qps] {} use qps: {} QPS/s",
        tag,
        (total * 1000000000 as u128 / time)
    );
}

///计算每个操作耗时ns纳秒
pub fn print_each_time(tag: &str, total: u128, start: Instant) {
    let time = start.elapsed();
    println!(
        "[count_each_time] {} use Time: {},each:{} ns/op",
        tag,
        duration_to_string(time),
        time.as_nanos() / total as u128
    );
}

/// count wait time
pub fn print_time(tag: &str, start: Instant) {
    let time = start.elapsed();
    println!(
        "[count_wait_time] {} use Time: {} ",
        tag,
        duration_to_string(time)
    );
}

/// duration_to_string
fn duration_to_string(wait: Duration) -> String {
    if wait.gt(&Duration::from_millis(1)) {
        return format!("{}ms", wait.as_millis());
    } else if wait.gt(&Duration::from_secs(1)) {
        return format!("{}s", wait.as_secs() as u128);
    } else {
        return format!("{}ns", wait.as_nanos());
    }
}