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opentelemetry-go/sdk/log/bench_test.go
Robert Pająk f80064a978
sdk/log: Add processor benchmarks (#5448)
Towards https://github.com/open-telemetry/opentelemetry-go/issues/5219

Towards https://github.com/open-telemetry/opentelemetry-go/issues/5054

This benchmarks are supposed
- Validate the the `Processor` interface design from performance
perspective. E.g. they are used to check if a processor that is
modifying a log record is causing an additional heap allocations.
- Benchmark the processors supported by the SDK.

These are "almost-end-to-end" benchmarks (with noopExporter) so that it
checks the performance of the SDK log processing without the actual
exporting part.

```
cpu: Intel(R) Core(TM) i9-10885H CPU @ 2.40GHz
BenchmarkProcessor/Simple-16         	 1990946	       644.6 ns/op	     417 B/op	       1 allocs/op
BenchmarkProcessor/Batch-16          	  835135	      1211 ns/op	     597 B/op	       0 allocs/op
BenchmarkProcessor/ModifyTimestampSimple-16         	 1782510	       644.3 ns/op	     417 B/op	       1 allocs/op
BenchmarkProcessor/ModifyTimestampBatch-16          	  945699	      1222 ns/op	     637 B/op	       0 allocs/op
BenchmarkProcessor/ModifyAttributesSimple-16        	 1570214	       717.6 ns/op	     465 B/op	       2 allocs/op
BenchmarkProcessor/ModifyAttributesBatch-16         	  768399	      1383 ns/op	     653 B/op	       1 allocs/op
```
2024-06-03 07:14:52 +02:00

101 lines
2.1 KiB
Go

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package log
import (
"context"
"testing"
"time"
"go.opentelemetry.io/otel/log"
"github.com/stretchr/testify/assert"
)
func BenchmarkProcessor(b *testing.B) {
for _, tc := range []struct {
name string
f func() Processor
}{
{
name: "Simple",
f: func() Processor {
return NewSimpleProcessor(noopExporter{})
},
},
{
name: "Batch",
f: func() Processor {
return NewBatchProcessor(noopExporter{})
},
},
{
name: "ModifyTimestampSimple",
f: func() Processor {
return timestampDecorator{NewSimpleProcessor(noopExporter{})}
},
},
{
name: "ModifyTimestampBatch",
f: func() Processor {
return timestampDecorator{NewBatchProcessor(noopExporter{})}
},
},
{
name: "ModifyAttributesSimple",
f: func() Processor {
return attrDecorator{NewSimpleProcessor(noopExporter{})}
},
},
{
name: "ModifyAttributesBatch",
f: func() Processor {
return attrDecorator{NewBatchProcessor(noopExporter{})}
},
},
} {
b.Run(tc.name, func(b *testing.B) {
provider := NewLoggerProvider(WithProcessor(tc.f()))
b.Cleanup(func() { assert.NoError(b, provider.Shutdown(context.Background())) })
logger := provider.Logger(b.Name())
b.ReportAllocs()
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
r := log.Record{}
r.SetBody(log.StringValue("message"))
r.SetSeverity(log.SeverityInfo)
r.AddAttributes(
log.String("foo", "bar"),
log.Float64("float", 3.14),
log.Int("int", 123),
log.Bool("bool", true),
)
logger.Emit(context.Background(), r)
}
})
})
}
}
type timestampDecorator struct {
Processor
}
func (e timestampDecorator) OnEmit(ctx context.Context, r Record) error {
r = r.Clone()
r.SetObservedTimestamp(time.Date(1988, time.November, 17, 0, 0, 0, 0, time.UTC))
return e.Processor.OnEmit(ctx, r)
}
type attrDecorator struct {
Processor
}
func (e attrDecorator) OnEmit(ctx context.Context, r Record) error {
r = r.Clone()
r.SetAttributes(log.String("replace", "me"))
return e.Processor.OnEmit(ctx, r)
}