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use criterion::{black_box, criterion_group, criterion_main, Criterion};
use tracing::{info, instrument};
use tracing_subscriber::prelude::*;
#[instrument]
fn fibonacci(n: u64) -> u64 {
if n < 2 {
n
} else {
fibonacci(n - 1) + fibonacci(n - 2)
}
}
fn instrument_benchmark(c: &mut Criterion) {
let mut group = c.benchmark_group("instrument");
group.throughput(criterion::Throughput::Elements(3));
group.bench_function("locations_and_args", |b| {
let (layer, _guard) = tracing_chrome::ChromeLayerBuilder::new()
.include_args(true)
.include_locations(true)
.writer(std::io::sink())
.build();
let _subscriber = tracing_subscriber::registry().with(layer).set_default();
b.iter(|| black_box(fibonacci(3)));
});
group.bench_function("locations", |b| {
let (layer, _guard) = tracing_chrome::ChromeLayerBuilder::new()
.include_args(false)
.include_locations(true)
.writer(std::io::sink())
.build();
let _subscriber = tracing_subscriber::registry().with(layer).set_default();
b.iter(|| black_box(fibonacci(3)));
});
group.bench_function("minimal", |b| {
let (layer, _guard) = tracing_chrome::ChromeLayerBuilder::new()
.include_args(false)
.include_locations(false)
.writer(std::io::sink())
.build();
let _subscriber = tracing_subscriber::registry().with(layer).set_default();
b.iter(|| black_box(fibonacci(3)));
});
}
fn event_benchmark(c: &mut Criterion) {
let mut group = c.benchmark_group("event");
group.throughput(criterion::Throughput::Elements(1));
group.bench_function("locations_and_args", |b| {
let (layer, _guard) = tracing_chrome::ChromeLayerBuilder::new()
.include_args(true)
.include_locations(true)
.writer(std::io::sink())
.build();
let _subscriber = tracing_subscriber::registry().with(layer).set_default();
b.iter(|| {
info!(arg = 42, "Something Happen");
});
});
group.bench_function("locations", |b| {
let (layer, _guard) = tracing_chrome::ChromeLayerBuilder::new()
.include_args(false)
.include_locations(true)
.writer(std::io::sink())
.build();
let _subscriber = tracing_subscriber::registry().with(layer).set_default();
b.iter(|| {
info!(arg = 42, "Something Happen");
});
});
group.bench_function("minimal", |b| {
let (layer, _guard) = tracing_chrome::ChromeLayerBuilder::new()
.include_args(false)
.include_locations(false)
.writer(std::io::sink())
.build();
let _subscriber = tracing_subscriber::registry().with(layer).set_default();
b.iter(|| {
info!(arg = 42, "Something Happen");
});
});
}
criterion_group!(benches, instrument_benchmark, event_benchmark);
criterion_main!(benches);
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