75 lines
2.1 KiB
Rust
75 lines
2.1 KiB
Rust
//! Benchmarks for chrono that just depend on std
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extern crate chrono;
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extern crate criterion;
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use criterion::{black_box, criterion_group, criterion_main, Criterion};
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use chrono::prelude::*;
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use chrono::{Utc, FixedOffset, DateTime, __BenchYearFlags};
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fn bench_datetime_parse_from_rfc2822(c: &mut Criterion) {
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c.bench_function("bench_datetime_parse_from_rfc2822", |b| {
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b.iter(|| {
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let str = black_box("Wed, 18 Feb 2015 23:16:09 +0000");
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DateTime::parse_from_rfc2822(str).unwrap()
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})
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});
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}
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fn bench_datetime_parse_from_rfc3339(c: &mut Criterion) {
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c.bench_function("bench_datetime_parse_from_rfc3339", |b| {
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b.iter(|| {
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let str = black_box("2015-02-18T23:59:60.234567+05:00");
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DateTime::parse_from_rfc3339(str).unwrap()
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})
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});
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}
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fn bench_datetime_from_str(c: &mut Criterion) {
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c.bench_function("bench_datetime_from_str", |b| {
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b.iter(|| {
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use std::str::FromStr;
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let str = black_box("2019-03-30T18:46:57.193Z");
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DateTime::<Utc>::from_str(str).unwrap()
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})
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});
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}
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fn bench_datetime_to_rfc2822(c: &mut Criterion) {
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let pst = FixedOffset::east(8 * 60 * 60);
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let dt = pst.ymd(2018, 1, 11).and_hms_nano(10, 5, 13, 084_660_000);
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c.bench_function("bench_datetime_to_rfc2822", |b| {
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b.iter(|| black_box(dt).to_rfc2822())
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});
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}
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fn bench_datetime_to_rfc3339(c: &mut Criterion) {
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let pst = FixedOffset::east(8 * 60 * 60);
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let dt = pst.ymd(2018, 1, 11).and_hms_nano(10, 5, 13, 084_660_000);
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c.bench_function("bench_datetime_to_rfc3339", |b| {
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b.iter(|| black_box(dt).to_rfc3339())
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});
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}
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fn bench_year_flags_from_year(c: &mut Criterion) {
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c.bench_function("bench_year_flags_from_year", |b|
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b.iter(|| {
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for year in -999i32..1000 {
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__BenchYearFlags::from_year(year);
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}
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}));
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}
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criterion_group!(
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benches,
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bench_datetime_parse_from_rfc2822,
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bench_datetime_parse_from_rfc3339,
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bench_datetime_from_str,
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bench_datetime_to_rfc2822,
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bench_datetime_to_rfc3339,
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bench_year_flags_from_year,
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);
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criterion_main!(benches);
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