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package integration_tests
import (
"io/ioutil"
"os"
"fmt"
"io"
"testing"
)
func BenchmarkStreamWrite(t *testing.B) {
buf := make([]byte, 1024*1024)
t.SetBytes(int64(len(buf)))
file, err := os.Create(plainDir + "BenchmarkWrite")
if err != nil {
t.FailNow()
}
t.ResetTimer()
var i int
for i = 0; i < t.N; i++ {
written, err := file.Write(buf)
if err != nil {
fmt.Printf("err=\"%s\", written=%d\n", err.Error(), written)
t.FailNow()
}
}
file.Close()
}
func BenchmarkStreamRead(t *testing.B) {
buf := make([]byte, 1024*1024)
t.SetBytes(int64(len(buf)))
fn := plainDir + "BenchmarkWrite"
fi, err := os.Stat(fn)
if err != nil {
t.Fatal(err)
}
mb := int(fi.Size() / 1024 / 1024)
if t.N > mb {
// Grow file so we can satisfy the test
//fmt.Printf("Growing file to %d MB... ", t.N)
f2, err := os.OpenFile(fn, os.O_WRONLY|os.O_APPEND, 0666)
if err != nil {
fmt.Println(err)
t.FailNow()
}
for h := 0; h < t.N-mb; h++ {
_, err = f2.Write(buf)
if err != nil {
fmt.Println(err)
t.FailNow()
}
}
f2.Close()
//fmt.Printf("done\n")
}
file, err := os.Open(fn)
if err != nil {
t.FailNow()
}
t.ResetTimer()
var i int
for i = 0; i < t.N; i++ {
_, err := file.Read(buf)
if err == io.EOF {
fmt.Printf("Test file too small\n")
t.SkipNow()
} else if err != nil {
fmt.Println(err)
t.FailNow()
}
}
file.Close()
}
// createFiles - create "count" files of size "size" bytes each
func createFiles(t *testing.B, count int, size int) {
dir := fmt.Sprintf("%s/createFiles_%d_%d", plainDir, count, size)
err := os.Mkdir(dir, 0777)
if err != nil {
t.Fatal(err)
}
buf := make([]byte, size)
t.SetBytes(int64(len(buf)))
t.ResetTimer()
var i int
for i = 0; i < count; i++ {
file := fmt.Sprintf("%s/%d", dir, i)
if size > 0 {
err = ioutil.WriteFile(file, buf, 0666)
} else {
var fh *os.File
fh, err = os.Create(file)
fh.Close()
}
if err != nil {
t.Fatal(err)
}
}
t.StopTimer()
os.RemoveAll(dir)
}
func BenchmarkCreate0B(t *testing.B) {
createFiles(t, t.N, 0)
}
func BenchmarkCreate1B(t *testing.B) {
createFiles(t, t.N, 1)
}
func BenchmarkCreate100B(t *testing.B) {
createFiles(t, t.N, 100)
}
func BenchmarkCreate4kB(t *testing.B) {
createFiles(t, t.N, 4*1024)
}
func BenchmarkCreate10kB(t *testing.B) {
createFiles(t, t.N, 10*1024)
}
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