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// Copyright (c) 2012-2016 Eli Janssen
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package mlog
import (
"io"
"log"
"math/rand"
"testing"
)
const (
letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
letterBytesAlt = letterBytes + "\"\t\r\n"
letterIdxBits = 6 // 6 bits to represent a letter index
letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
letterIdxMax = 63 / letterIdxBits // # of letter indices fitting in 63 bits
)
// uses unseeded rand (seed(1))...only use for testing!
func randString(n int, altchars bool) string {
lb := letterBytes
if altchars {
lb = letterBytesAlt
}
b := make([]byte, n)
for i, cache, remain := n-1, rand.Int63(), letterIdxMax; i >= 0; {
if remain == 0 {
cache, remain = rand.Int63(), letterIdxMax
}
if idx := int(cache & letterIdxMask); idx < len(lb) {
b[i] = lb[idx]
i--
}
cache >>= letterIdxBits
remain--
}
return string(b)
}
func BenchmarkLoggingDebugWithDisabled(b *testing.B) {
logger := New(io.Discard, 0)
b.ResetTimer()
for i := 0; i < b.N; i++ {
logger.Debug("this is a test")
}
}
func BenchmarkLoggingDebugWithEnabled(b *testing.B) {
logger := New(io.Discard, Ldebug)
b.ResetTimer()
for i := 0; i < b.N; i++ {
logger.Debug("this is a test")
}
}
func BenchmarkLoggingLikeStdlib(b *testing.B) {
logger := New(io.Discard, Lstd)
b.ResetTimer()
for i := 0; i < b.N; i++ {
logger.Info("this is a test")
}
}
func BenchmarkLoggingStdlibLog(b *testing.B) {
logger := log.New(io.Discard, "info: ", log.LstdFlags)
b.ResetTimer()
for i := 0; i < b.N; i++ {
logger.Print("this is a test")
}
}
func BenchmarkLoggingLikeStdlibShortfile(b *testing.B) {
logger := New(io.Discard, Lstd|Lshortfile)
b.ResetTimer()
for i := 0; i < b.N; i++ {
logger.Info("this is a test")
}
}
func BenchmarkLoggingStdlibLogShortfile(b *testing.B) {
logger := log.New(io.Discard, "info: ", log.LstdFlags|log.Lshortfile)
b.ResetTimer()
for i := 0; i < b.N; i++ {
logger.Print("this is a test")
}
}
func BenchmarkLoggingParallelLikeStdlib(b *testing.B) {
logger := New(io.Discard, Lstd)
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
logger.Info("this is a test")
}
})
}
func BenchmarkLoggingParallelStdlibLog(b *testing.B) {
logger := log.New(io.Discard, "info: ", log.LstdFlags)
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
logger.Print("this is a test")
}
})
}
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