diff options
Diffstat (limited to 'vendor/humantime/benches/datetime_format.rs')
-rw-r--r-- | vendor/humantime/benches/datetime_format.rs | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/vendor/humantime/benches/datetime_format.rs b/vendor/humantime/benches/datetime_format.rs new file mode 100644 index 000000000..77d47667c --- /dev/null +++ b/vendor/humantime/benches/datetime_format.rs @@ -0,0 +1,56 @@ +#![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() + }); +} |