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// Benchmark inspired by
// https://github.com/tikv/rust-prometheus/blob/ab1ca7285d3463504381a5025ae1951e020d6796/benches/text_encoder.rs:write
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use prometheus_client::encoding::protobuf;
use prometheus_client::metrics::counter::Counter;
use prometheus_client::metrics::family::Family;
use prometheus_client::metrics::histogram::{exponential_buckets, Histogram};
use prometheus_client::registry::Registry;
use prometheus_client_derive_encode::{EncodeLabelSet, EncodeLabelValue};
#[cfg(not(target_has_atomic = "64"))]
pub fn proto(c: &mut Criterion) {
println!("bench disabled on architectures without 64-bit atomics")
}
#[cfg(target_has_atomic = "64")]
pub fn proto(c: &mut Criterion) {
c.bench_function("encode", |b| {
#[derive(Clone, Hash, PartialEq, Eq, EncodeLabelSet, Debug)]
struct CounterLabels {
path: String,
method: Method,
some_number: u64,
}
#[derive(Clone, Hash, PartialEq, Eq, EncodeLabelValue, Debug)]
enum Method {
Get,
#[allow(dead_code)]
Put,
}
#[derive(Clone, Hash, PartialEq, Eq, EncodeLabelSet, Debug)]
struct HistogramLabels {
region: Region,
}
#[derive(Clone, Hash, PartialEq, Eq, EncodeLabelValue, Debug)]
enum Region {
Africa,
#[allow(dead_code)]
Asia,
}
let mut registry = Registry::default();
for i in 0..100 {
let counter_family = Family::<CounterLabels, Counter>::default();
let histogram_family =
Family::<HistogramLabels, Histogram>::new_with_constructor(|| {
Histogram::new(exponential_buckets(1.0, 2.0, 10))
});
registry.register(
format!("my_counter{}", i),
"My counter",
counter_family.clone(),
);
registry.register(
format!("my_histogram{}", i),
"My histogram",
histogram_family.clone(),
);
for j in 0_u32..100 {
counter_family
.get_or_create(&CounterLabels {
path: format!("/path/{}", i),
method: Method::Get,
some_number: j.into(),
})
.inc();
histogram_family
.get_or_create(&HistogramLabels {
region: Region::Africa,
})
.observe(j.into());
}
}
b.iter(|| {
let metric_set = protobuf::encode(®istry).unwrap();
black_box(metric_set);
})
});
}
criterion_group!(benches, proto);
criterion_main!(benches);
|
