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use criterion::{criterion_group, criterion_main, Criterion};
use tracing_subscriber::prelude::*;
fn enter(c: &mut Criterion) {
let mut group = c.benchmark_group("enter");
let _subscriber = tracing_subscriber::fmt()
.with_max_level(tracing::Level::INFO)
.finish()
.set_default();
group.bench_function("enabled", |b| {
let span = tracing::info_span!("foo");
b.iter_with_large_drop(|| span.enter())
});
group.bench_function("disabled", |b| {
let span = tracing::debug_span!("foo");
b.iter_with_large_drop(|| span.enter())
});
}
fn enter_exit(c: &mut Criterion) {
let mut group = c.benchmark_group("enter_exit");
let _subscriber = tracing_subscriber::fmt()
.with_max_level(tracing::Level::INFO)
.finish()
.set_default();
group.bench_function("enabled", |b| {
let span = tracing::info_span!("foo");
b.iter(|| span.enter())
});
group.bench_function("disabled", |b| {
let span = tracing::debug_span!("foo");
b.iter(|| span.enter())
});
}
fn enter_many(c: &mut Criterion) {
let mut group = c.benchmark_group("enter_many");
let _subscriber = tracing_subscriber::fmt()
.with_max_level(tracing::Level::INFO)
.finish()
.set_default();
group.bench_function("enabled", |b| {
let span1 = tracing::info_span!("span1");
let _e1 = span1.enter();
let span2 = tracing::info_span!("span2");
let _e2 = span2.enter();
let span3 = tracing::info_span!("span3");
let _e3 = span3.enter();
let span = tracing::info_span!("foo");
b.iter_with_large_drop(|| span.enter())
});
group.bench_function("disabled", |b| {
let span1 = tracing::info_span!("span1");
let _e1 = span1.enter();
let span2 = tracing::info_span!("span2");
let _e2 = span2.enter();
let span3 = tracing::info_span!("span3");
let _e3 = span3.enter();
let span = tracing::debug_span!("foo");
b.iter_with_large_drop(|| span.enter())
});
}
criterion_group!(benches, enter, enter_exit, enter_many);
criterion_main!(benches);
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