prometheus 0.3.10

// Copyright 2016 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.

use prometheus::{Gauge, GaugeVec, Opts};
use test::Bencher;

#[bench]
fn bench_gauge_with_label_values(b: &mut Bencher) {
    let gauge = GaugeVec::new(
        Opts::new("benchmark_gauge", "A gauge to benchmark it."),
        &["one", "two", "three"],
    ).unwrap();
    b.iter(|| gauge.with_label_values(&["eins", "zwei", "drei"]).inc())
}

#[bench]
fn bench_gauge_no_labels(b: &mut Bencher) {
    let gauge = Gauge::new("benchmark_gauge", "A gauge to benchmark it.").unwrap();
    b.iter(|| gauge.inc())
}