blob: b8c020d96e4a4277f2219a0de66034a0b5b41472 [file] [log] [blame]
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bench_test
import (
"context"
"io"
"testing"
"golang.org/x/exp/event"
"golang.org/x/exp/event/eventtest"
"golang.org/x/exp/event/keys"
)
var (
aValue = keys.Int(aName)
bValue = keys.String(bName)
aCount = keys.Int64("aCount")
aStat = keys.Int("aValue")
bCount = keys.Int64("B")
bLength = keys.Int("BLen")
eventLog = Hooks{
AStart: func(ctx context.Context, a int) context.Context {
event.To(ctx).With(aValue.Of(a)).Log(aMsg)
return ctx
},
AEnd: func(ctx context.Context) {},
BStart: func(ctx context.Context, b string) context.Context {
event.To(ctx).With(bValue.Of(b)).Log(bMsg)
return ctx
},
BEnd: func(ctx context.Context) {},
}
eventLogf = Hooks{
AStart: func(ctx context.Context, a int) context.Context {
event.To(ctx).Logf(aMsgf, a)
return ctx
},
AEnd: func(ctx context.Context) {},
BStart: func(ctx context.Context, b string) context.Context {
event.To(ctx).Logf(bMsgf, b)
return ctx
},
BEnd: func(ctx context.Context) {},
}
eventTrace = Hooks{
AStart: func(ctx context.Context, a int) context.Context {
ctx, _ = event.Start(ctx, aMsg)
event.To(ctx).With(aValue.Of(a)).Annotate()
return ctx
},
AEnd: func(ctx context.Context) {
event.To(ctx).Deliver(event.EndKind, "")
},
BStart: func(ctx context.Context, b string) context.Context {
ctx, _ = event.Start(ctx, bMsg)
event.To(ctx).With(bValue.Of(b)).Annotate()
return ctx
},
BEnd: func(ctx context.Context) {
event.To(ctx).Deliver(event.EndKind, "")
},
}
eventMetric = Hooks{
AStart: func(ctx context.Context, a int) context.Context {
event.To(ctx).With(aStat.Of(a)).Metric()
event.To(ctx).With(aCount.Of(1)).Metric()
return ctx
},
AEnd: func(ctx context.Context) {},
BStart: func(ctx context.Context, b string) context.Context {
event.To(ctx).With(bLength.Of(len(b))).Metric()
event.To(ctx).With(bCount.Of(1)).Metric()
return ctx
},
BEnd: func(ctx context.Context) {},
}
)
func eventDisabled() context.Context {
event.Disable()
return context.Background()
}
func eventNoExporter() context.Context {
// register an exporter to turn the system on, but not in this context
event.NewExporter(noopHandler{})
return context.Background()
}
func eventNoop() context.Context {
e := event.NewExporter(noopHandler{})
e.Now = eventtest.TestNow()
return event.WithExporter(context.Background(), e)
}
func eventPrint(w io.Writer) context.Context {
e := event.NewExporter(event.NewPrinter(w))
e.Now = eventtest.TestNow()
return event.WithExporter(context.Background(), e)
}
func BenchmarkLogEventDisabled(b *testing.B) {
runBenchmark(b, eventDisabled(), eventLog)
}
func BenchmarkLogEventNoExporter(b *testing.B) {
runBenchmark(b, eventNoExporter(), eventLog)
}
func BenchmarkLogEventNoop(b *testing.B) {
runBenchmark(b, eventNoop(), eventLog)
}
func BenchmarkLogEventDiscard(b *testing.B) {
runBenchmark(b, eventPrint(io.Discard), eventLog)
}
func BenchmarkLogEventfDiscard(b *testing.B) {
runBenchmark(b, eventPrint(io.Discard), eventLogf)
}
func TestLogEventf(t *testing.T) {
testBenchmark(t, eventPrint, eventLogf, `
2020/03/05 14:27:48 [log:1] A where a=0
2020/03/05 14:27:49 [log:2] b where b="A value"
2020/03/05 14:27:50 [log:3] A where a=1
2020/03/05 14:27:51 [log:4] b where b="Some other value"
2020/03/05 14:27:52 [log:5] A where a=22
2020/03/05 14:27:53 [log:6] b where b="Some other value"
2020/03/05 14:27:54 [log:7] A where a=333
2020/03/05 14:27:55 [log:8] b where b=""
2020/03/05 14:27:56 [log:9] A where a=4444
2020/03/05 14:27:57 [log:10] b where b="prime count of values"
2020/03/05 14:27:58 [log:11] A where a=55555
2020/03/05 14:27:59 [log:12] b where b="V"
2020/03/05 14:28:00 [log:13] A where a=666666
2020/03/05 14:28:01 [log:14] b where b="A value"
2020/03/05 14:28:02 [log:15] A where a=7777777
2020/03/05 14:28:03 [log:16] b where b="A value"
`)
}
func BenchmarkTraceEventNoop(b *testing.B) {
runBenchmark(b, eventPrint(io.Discard), eventTrace)
}
func BenchmarkMetricEventNoop(b *testing.B) {
runBenchmark(b, eventPrint(io.Discard), eventMetric)
}
type noopHandler struct{}
func (noopHandler) Handle(ev *event.Event) {}