mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2025-01-26 03:52:03 +02:00
5e8eb855bf
Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>
150 lines
3.7 KiB
Go
150 lines
3.7 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package metric // import "go.opentelemetry.io/otel/sdk/metric"
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import (
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"context"
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"fmt"
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"testing"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/metric/instrument"
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"go.opentelemetry.io/otel/sdk/metric/metricdata"
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)
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func benchCounter(b *testing.B, views ...View) (context.Context, Reader, instrument.Int64Counter) {
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ctx := context.Background()
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rdr := NewManualReader()
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provider := NewMeterProvider(WithReader(rdr), WithView(views...))
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cntr, _ := provider.Meter("test").Int64Counter("hello")
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b.ResetTimer()
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b.ReportAllocs()
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return ctx, rdr, cntr
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}
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func BenchmarkCounterAddNoAttrs(b *testing.B) {
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ctx, _, cntr := benchCounter(b)
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for i := 0; i < b.N; i++ {
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cntr.Add(ctx, 1)
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}
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}
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func BenchmarkCounterAddOneAttr(b *testing.B) {
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ctx, _, cntr := benchCounter(b)
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for i := 0; i < b.N; i++ {
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cntr.Add(ctx, 1, attribute.String("K", "V"))
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}
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}
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func BenchmarkCounterAddOneInvalidAttr(b *testing.B) {
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ctx, _, cntr := benchCounter(b)
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for i := 0; i < b.N; i++ {
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cntr.Add(ctx, 1, attribute.String("", "V"), attribute.String("K", "V"))
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}
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}
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func BenchmarkCounterAddSingleUseAttrs(b *testing.B) {
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ctx, _, cntr := benchCounter(b)
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for i := 0; i < b.N; i++ {
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cntr.Add(ctx, 1, attribute.Int("K", i))
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}
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}
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func BenchmarkCounterAddSingleUseInvalidAttrs(b *testing.B) {
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ctx, _, cntr := benchCounter(b)
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for i := 0; i < b.N; i++ {
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cntr.Add(ctx, 1, attribute.Int("", i), attribute.Int("K", i))
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}
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}
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func BenchmarkCounterAddSingleUseFilteredAttrs(b *testing.B) {
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ctx, _, cntr := benchCounter(b, NewView(
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Instrument{Name: "*"},
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Stream{AttributeFilter: func(kv attribute.KeyValue) bool {
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return kv.Key == attribute.Key("K")
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}},
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))
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for i := 0; i < b.N; i++ {
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cntr.Add(ctx, 1, attribute.Int("L", i), attribute.Int("K", i))
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}
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}
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func BenchmarkCounterCollectOneAttr(b *testing.B) {
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ctx, rdr, cntr := benchCounter(b)
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for i := 0; i < b.N; i++ {
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cntr.Add(ctx, 1, attribute.Int("K", 1))
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_, _ = rdr.Collect(ctx)
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}
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}
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func BenchmarkCounterCollectTenAttrs(b *testing.B) {
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ctx, rdr, cntr := benchCounter(b)
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for i := 0; i < b.N; i++ {
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for j := 0; j < 10; j++ {
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cntr.Add(ctx, 1, attribute.Int("K", j))
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}
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_, _ = rdr.Collect(ctx)
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}
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}
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func BenchmarkCollectHistograms(b *testing.B) {
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b.Run("1", benchCollectHistograms(1))
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b.Run("5", benchCollectHistograms(5))
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b.Run("10", benchCollectHistograms(10))
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b.Run("25", benchCollectHistograms(25))
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}
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func benchCollectHistograms(count int) func(*testing.B) {
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ctx := context.Background()
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r := NewManualReader()
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mtr := NewMeterProvider(
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WithReader(r),
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).Meter("sdk/metric/bench/histogram")
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for i := 0; i < count; i++ {
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name := fmt.Sprintf("fake data %d", i)
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h, _ := mtr.Int64Histogram(name)
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h.Record(ctx, 1)
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}
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// Store bechmark results in a closure to prevent the compiler from
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// inlining and skipping the function.
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var (
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collectedMetrics metricdata.ResourceMetrics
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)
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return func(b *testing.B) {
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b.ReportAllocs()
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b.ResetTimer()
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for n := 0; n < b.N; n++ {
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collectedMetrics, _ = r.Collect(ctx)
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if len(collectedMetrics.ScopeMetrics[0].Metrics) != count {
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b.Fatalf("got %d metrics, want %d", len(collectedMetrics.ScopeMetrics[0].Metrics), count)
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}
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}
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}
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}
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