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opentelemetry-go/exporters/prometheus/benchmark_test.go
Tyler Yahn a54167d2c9
Remove metric instrument provider API (#3530)
* Remove all InstrumentProvider APIs

* Fix noop impl

* Fix metric/example_test.go

* Update global impl

* Update sdk/metric impl

* Fix examples

* Fix prometheus exporter

* Add changes to changelog

Co-authored-by: Aaron Clawson <3766680+MadVikingGod@users.noreply.github.com>
2023-01-03 10:34:10 -08:00

55 lines
1.7 KiB
Go

// Copyright The OpenTelemetry Authors
//
// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import (
"context"
"fmt"
"testing"
"github.com/prometheus/client_golang/prometheus"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel/sdk/metric"
)
func benchmarkCollect(b *testing.B, n int) {
ctx := context.Background()
registry := prometheus.NewRegistry()
exporter, err := New(WithRegisterer(registry))
require.NoError(b, err)
provider := metric.NewMeterProvider(metric.WithReader(exporter))
meter := provider.Meter("testmeter")
for i := 0; i < n; i++ {
counter, err := meter.Float64Counter(fmt.Sprintf("foo_%d", i))
require.NoError(b, err)
counter.Add(ctx, float64(i))
}
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := registry.Gather()
require.NoError(b, err)
}
}
func BenchmarkCollect1(b *testing.B) { benchmarkCollect(b, 1) }
func BenchmarkCollect10(b *testing.B) { benchmarkCollect(b, 10) }
func BenchmarkCollect100(b *testing.B) { benchmarkCollect(b, 100) }
func BenchmarkCollect1000(b *testing.B) { benchmarkCollect(b, 1000) }
func BenchmarkCollect10000(b *testing.B) { benchmarkCollect(b, 10000) }