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#![feature(test)]
extern crate test;
use std::io::Write;
use std::time::{Duration, UNIX_EPOCH};
use humantime::format_rfc3339;
#[bench]
fn rfc3339_humantime_seconds(b: &mut test::Bencher) {
let time = UNIX_EPOCH + Duration::new(1_483_228_799, 0);
let mut buf = Vec::with_capacity(100);
b.iter(|| {
buf.truncate(0);
write!(&mut buf, "{}", format_rfc3339(time)).unwrap()
});
}
#[bench]
fn rfc3339_chrono(b: &mut test::Bencher) {
use chrono::{DateTime, NaiveDateTime, Utc};
use chrono::format::Item;
use chrono::format::Item::*;
use chrono::format::Numeric::*;
use chrono::format::Fixed::*;
use chrono::format::Pad::*;
let time = DateTime::<Utc>::from_utc(
NaiveDateTime::from_timestamp(1_483_228_799, 0), Utc);
let mut buf = Vec::with_capacity(100);
// formatting code from env_logger
const ITEMS: &[Item<'static>] = {
&[
Numeric(Year, Zero),
Literal("-"),
Numeric(Month, Zero),
Literal("-"),
Numeric(Day, Zero),
Literal("T"),
Numeric(Hour, Zero),
Literal(":"),
Numeric(Minute, Zero),
Literal(":"),
Numeric(Second, Zero),
Fixed(TimezoneOffsetZ),
]
};
b.iter(|| {
buf.truncate(0);
write!(&mut buf, "{}", time.format_with_items(ITEMS.iter().cloned()))
.unwrap()
});
}
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