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// 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)
})
}
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