// Copyright 2018, OpenCensus 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 trace import ( "context" "testing" ) func BenchmarkStartEndSpan(b *testing.B) { traceBenchmark(b, func(b *testing.B) { ctx := context.Background() b.ResetTimer() for i := 0; i < b.N; i++ { _, span := StartSpan(ctx, "/foo") span.End() } }) } func BenchmarkSpanWithAnnotations_4(b *testing.B) { traceBenchmark(b, func(b *testing.B) { ctx := context.Background() b.ResetTimer() for i := 0; i < b.N; i++ { _, span := StartSpan(ctx, "/foo") span.AddAttributes( BoolAttribute("key1", false), StringAttribute("key2", "hello"), Int64Attribute("key3", 123), Float64Attribute("key4", 123.456), ) span.End() } }) } func BenchmarkSpanWithAnnotations_8(b *testing.B) { traceBenchmark(b, func(b *testing.B) { ctx := context.Background() b.ResetTimer() for i := 0; i < b.N; i++ { _, span := StartSpan(ctx, "/foo") span.AddAttributes( BoolAttribute("key1", false), BoolAttribute("key2", true), StringAttribute("key3", "hello"), StringAttribute("key4", "hello"), Int64Attribute("key5", 123), Int64Attribute("key6", 456), Float64Attribute("key7", 123.456), Float64Attribute("key8", 456.789), ) span.End() } }) } func BenchmarkTraceID_DotString(b *testing.B) { traceBenchmark(b, func(b *testing.B) { t := TraceID{0x0D, 0x0E, 0x0A, 0x0D, 0x0B, 0x0E, 0x0E, 0x0F, 0x0F, 0x0E, 0x0E, 0x0B, 0x0D, 0x0A, 0x0E, 0x0D} want := "0d0e0a0d0b0e0e0f0f0e0e0b0d0a0e0d" for i := 0; i < b.N; i++ { if got := t.String(); got != want { b.Fatalf("got = %q want = %q", got, want) } } }) } func BenchmarkSpanID_DotString(b *testing.B) { traceBenchmark(b, func(b *testing.B) { s := SpanID{0x0D, 0x0E, 0x0A, 0x0D, 0x0B, 0x0E, 0x0E, 0x0F} want := "0d0e0a0d0b0e0e0f" for i := 0; i < b.N; i++ { if got := s.String(); got != want { b.Fatalf("got = %q want = %q", got, want) } } }) } func traceBenchmark(b *testing.B, fn func(*testing.B)) { b.Run("AlwaysSample", func(b *testing.B) { b.ReportAllocs() ApplyConfig(Config{DefaultSampler: AlwaysSample()}) fn(b) }) b.Run("NeverSample", func(b *testing.B) { b.ReportAllocs() ApplyConfig(Config{DefaultSampler: NeverSample()}) fn(b) }) }