log: better benchmark

This commit is contained in:
Martin Holst Swende 2023-11-07 19:20:58 +01:00
parent 28e7371701
commit 0c8b6ca8c7
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GPG key ID: 683B438C05A5DDF0

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@ -2,10 +2,15 @@ package log
import ( import (
"bytes" "bytes"
"fmt"
"io"
"math/big"
"os" "os"
"strings" "strings"
"testing" "testing"
"time"
"github.com/holiman/uint256"
"golang.org/x/exp/slog" "golang.org/x/exp/slog"
) )
@ -51,3 +56,115 @@ func BenchmarkTraceLogging(b *testing.B) {
Trace("a message", "v", i) Trace("a message", "v", i)
} }
} }
func BenchmarkGloggerTerminal(b *testing.B) {
glogHandler := NewGlogHandler(NewTerminalHandler(io.Discard, false))
glogHandler.Verbosity(LevelInfo)
l := NewLogger(glogHandler)
type custom struct {
A string
B int8
}
var (
bb = make([]byte, 10)
tt = time.Now()
bigint = big.NewInt(100)
nilbig *big.Int
err = fmt.Errorf("Oh nooes it's crap")
)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
l.Info("This is a message",
"foo", int16(i),
"bytes", bb,
"bonk", "a string with text",
"time", tt,
"bigint", bigint,
"nilbig", nilbig,
"err", err)
}
b.StopTimer()
}
func TestLoggerOutput(t *testing.T) {
type custom struct {
A string
B int8
}
var (
customA = custom{"Foo", 12}
customB = custom{"Foo\nLinebreak", 122}
bb = make([]byte, 10)
tt = time.Time{}
bigint = big.NewInt(100)
nilbig *big.Int
err = fmt.Errorf("Oh nooes it's crap")
lazy = Lazy{Fn: func() interface{} { return "lazy value" }}
smallUint = uint256.NewInt(500_000)
bigUint = &uint256.Int{0xff, 0xff, 0xff, 0xff}
)
out := new(bytes.Buffer)
glogHandler := NewGlogHandler(NewTerminalHandler(out, false))
glogHandler.Verbosity(LevelInfo)
NewLogger(glogHandler).Info("This is a message",
"foo", int16(123),
"bytes", bb,
"bonk", "a string with text",
"time", tt,
"bigint", bigint,
"nilbig", nilbig,
"err", err,
"struct", customA,
"struct", customB,
"ptrstruct", &customA,
"lazy", lazy,
"smalluint", smallUint,
"bigUint", bigUint)
have := out.String()
t.Logf("output %v", out.String())
want := `INFO [11-07|19:14:33.821] This is a message foo=123 bytes="[0 0 0 0 0 0 0 0 0 0]" bonk="a string with text" time=0001-01-01T00:00:00+0000 bigint=100 nilbig=<nil> err="Oh nooes it's crap" struct="{A:Foo B:12}" struct="{A:Foo\nLinebreak B:122}" ptrstruct="&{A:Foo B:12}" lazy="lazy value" smalluint=500,000 bigUint=1,600,660,942,523,603,594,864,898,306,482,794,244,293,965,082,972,225,630,372,095
`
if !bytes.Equal([]byte(have)[25:], []byte(want)[25:]) {
t.Errorf("Error\nhave: %q\nwant: %q", have, want)
}
}
func BenchmarkAppendFormat(b *testing.B) {
var now = time.Now()
b.Run("fmt time.Format", func(b *testing.B) {
for i := 0; i < b.N; i++ {
fmt.Fprintf(io.Discard, "%s", now.Format(termTimeFormat))
}
})
b.Run("time.AppendFormat", func(b *testing.B) {
for i := 0; i < b.N; i++ {
now.AppendFormat(nil, termTimeFormat)
}
})
//var buf = new(bytes.Buffer)
//b.Run("time.Custom", func(b *testing.B) {
// for i := 0; i < b.N; i++ {
// writeTimeTermFormat(buf, now)
// buf.Reset()
// }
//})
}
//func TestTimeFormat(t *testing.T) {
// var now = time.Now()
// want := now.AppendFormat(nil, termTimeFormat)
// var b = new(bytes.Buffer)
// writeTimeTermFormat(b, now)
// have := b.Bytes()
// if !bytes.Equal(have, want) {
// t.Errorf("have != want\nhave: %q\nwant: %q\n", have, want)
// }
//}