switch to using criterion for benchmarks
It has a ton of great features[1], including stronger statistical signifance tests, making comparisons to previous or baseline runs, nice plots, and being able to be run on stable. 1: https://bheisler.github.io/criterion.rs/book/
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@ -8,6 +8,12 @@ Chrono obeys the principle of [Semantic Versioning](http://semver.org/).
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There were/are numerous minor versions before 1.0 due to the language changes.
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Versions with only mechanical changes will be omitted from the following list.
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## next
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### Internal improvements
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* Use Criterion for benchmarks (@quodlibetor)
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## 0.4.10
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### Improvements
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@ -48,6 +48,7 @@ serde_derive = { version = "1", default-features = false }
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bincode = { version = "0.8.0" }
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num-iter = { version = "0.1.35", default-features = false }
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doc-comment = "0.3"
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criterion = "0.3"
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[target.'cfg(all(target_arch = "wasm32", not(target_os = "emscripten")))'.dev-dependencies]
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wasm-bindgen-test = "0.2"
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@ -57,3 +58,7 @@ all-features = true
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[package.metadata.playground]
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all-features = true
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[[bench]]
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name = "parsing"
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harness = false
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@ -0,0 +1,62 @@
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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};
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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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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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);
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criterion_main!(benches);
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