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/*
* Minio Cloud Storage, (C) 2016, 2017 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"bytes"
"context"
"io/ioutil"
"math"
"math/rand"
"os"
"strconv"
"testing"
humanize "github.com/dustin/go-humanize"
)
// Prepare XL/FS backend for benchmark.
func prepareBenchmarkBackend(instanceType string) (ObjectLayer, []string, error) {
return prepareTestBackend(instanceType)
}
// Benchmark utility functions for ObjectLayer.PutObject().
// Creates Object layer setup ( MakeBucket ) and then runs the PutObject benchmark.
func runPutObjectBenchmark(b *testing.B, obj ObjectLayer, objSize int) {
var err error
// obtains random bucket name.
bucket := getRandomBucketName()
// create bucket.
err = obj.MakeBucketWithLocation(context.Background(), bucket, "")
if err != nil {
b.Fatal(err)
}
// get text data generated for number of bytes equal to object size.
textData := generateBytesData(objSize)
// generate md5sum for the generated data.
// md5sum of the data to written is required as input for PutObject.
metadata := make(map[string]string)
md5hex := getMD5Hash(textData)
sha256hex := ""
// benchmark utility which helps obtain number of allocations and bytes allocated per ops.
b.ReportAllocs()
// the actual benchmark for PutObject starts here. Reset the benchmark timer.
b.ResetTimer()
for i := 0; i < b.N; i++ {
// insert the object.
objInfo, err := obj.PutObject(context.Background(), bucket, "object"+strconv.Itoa(i),
mustGetHashReader(b, bytes.NewBuffer(textData), int64(len(textData)), md5hex, sha256hex), metadata)
if err != nil {
b.Fatal(err)
}
if objInfo.ETag != md5hex {
b.Fatalf("Write no: %d: Md5Sum mismatch during object write into the bucket: Expected %s, got %s", i+1, objInfo.ETag, md5hex)
}
}
// Benchmark ends here. Stop timer.
b.StopTimer()
}
// Benchmark utility functions for ObjectLayer.PutObjectPart().
// Creates Object layer setup ( MakeBucket ) and then runs the PutObjectPart benchmark.
func runPutObjectPartBenchmark(b *testing.B, obj ObjectLayer, partSize int) {
var err error
// obtains random bucket name.
bucket := getRandomBucketName()
object := getRandomObjectName()
// create bucket.
err = obj.MakeBucketWithLocation(context.Background(), bucket, "")
if err != nil {
b.Fatal(err)
}
objSize := 128 * humanize.MiByte
// PutObjectPart returns etag of the object inserted.
// etag variable is assigned with that value.
var etag, uploadID string
// get text data generated for number of bytes equal to object size.
textData := generateBytesData(objSize)
// generate md5sum for the generated data.
// md5sum of the data to written is required as input for NewMultipartUpload.
metadata := make(map[string]string)
uploadID, err = obj.NewMultipartUpload(context.Background(), bucket, object, metadata)
if err != nil {
b.Fatal(err)
}
md5hex := getMD5Hash(textData)
sha256hex := ""
var textPartData []byte
// benchmark utility which helps obtain number of allocations and bytes allocated per ops.
b.ReportAllocs()
// the actual benchmark for PutObjectPart starts here. Reset the benchmark timer.
b.ResetTimer()
for i := 0; i < b.N; i++ {
// insert the object.
totalPartsNR := int(math.Ceil(float64(objSize) / float64(partSize)))
for j := 0; j < totalPartsNR; j++ {
if j < totalPartsNR-1 {
textPartData = textData[j*partSize : (j+1)*partSize-1]
} else {
textPartData = textData[j*partSize:]
}
md5hex = getMD5Hash([]byte(textPartData))
var partInfo PartInfo
partInfo, err = obj.PutObjectPart(context.Background(), bucket, object, uploadID, j,
mustGetHashReader(b, bytes.NewBuffer(textPartData), int64(len(textPartData)), md5hex, sha256hex))
if err != nil {
b.Fatal(err)
}
if partInfo.ETag != md5hex {
b.Fatalf("Write no: %d: Md5Sum mismatch during object write into the bucket: Expected %s, got %s", i+1, etag, md5hex)
}
}
}
// Benchmark ends here. Stop timer.
b.StopTimer()
}
// creates XL/FS backend setup, obtains the object layer and calls the runPutObjectPartBenchmark function.
func benchmarkPutObjectPart(b *testing.B, instanceType string, objSize int) {
rootPath, err := newTestConfig(globalMinioDefaultRegion)
if err != nil {
b.Fatalf("Unable to initialize config. %s", err)
}
defer os.RemoveAll(rootPath)
// create a temp XL/FS backend.
objLayer, disks, err := prepareBenchmarkBackend(instanceType)
if err != nil {
b.Fatalf("Failed obtaining Temp Backend: <ERROR> %s", err)
}
// cleaning up the backend by removing all the directories and files created on function return.
defer removeRoots(disks)
// uses *testing.B and the object Layer to run the benchmark.
runPutObjectPartBenchmark(b, objLayer, objSize)
}
// creates XL/FS backend setup, obtains the object layer and calls the runPutObjectBenchmark function.
func benchmarkPutObject(b *testing.B, instanceType string, objSize int) {
rootPath, err := newTestConfig(globalMinioDefaultRegion)
if err != nil {
b.Fatalf("Unable to initialize config. %s", err)
}
defer os.RemoveAll(rootPath)
// create a temp XL/FS backend.
objLayer, disks, err := prepareBenchmarkBackend(instanceType)
if err != nil {
b.Fatalf("Failed obtaining Temp Backend: <ERROR> %s", err)
}
// cleaning up the backend by removing all the directories and files created on function return.
defer removeRoots(disks)
// uses *testing.B and the object Layer to run the benchmark.
runPutObjectBenchmark(b, objLayer, objSize)
}
// creates XL/FS backend setup, obtains the object layer and runs parallel benchmark for put object.
func benchmarkPutObjectParallel(b *testing.B, instanceType string, objSize int) {
rootPath, err := newTestConfig(globalMinioDefaultRegion)
if err != nil {
b.Fatalf("Unable to initialize config. %s", err)
}
defer os.RemoveAll(rootPath)
// create a temp XL/FS backend.
objLayer, disks, err := prepareBenchmarkBackend(instanceType)
if err != nil {
b.Fatalf("Failed obtaining Temp Backend: <ERROR> %s", err)
}
// cleaning up the backend by removing all the directories and files created on function return.
defer removeRoots(disks)
// uses *testing.B and the object Layer to run the benchmark.
runPutObjectBenchmarkParallel(b, objLayer, objSize)
}
// Benchmark utility functions for ObjectLayer.GetObject().
// Creates Object layer setup ( MakeBucket, PutObject) and then runs the benchmark.
func runGetObjectBenchmark(b *testing.B, obj ObjectLayer, objSize int) {
rootPath, err := newTestConfig(globalMinioDefaultRegion)
if err != nil {
b.Fatalf("Unable to initialize config. %s", err)
}
defer os.RemoveAll(rootPath)
// obtains random bucket name.
bucket := getRandomBucketName()
// create bucket.
err = obj.MakeBucketWithLocation(context.Background(), bucket, "")
if err != nil {
b.Fatal(err)
}
textData := generateBytesData(objSize)
// generate etag for the generated data.
// etag of the data to written is required as input for PutObject.
// PutObject is the functions which writes the data onto the FS/XL backend.
metadata := make(map[string]string)
// get text data generated for number of bytes equal to object size.
md5hex := getMD5Hash(textData)
sha256hex := ""
for i := 0; i < 10; i++ {
// insert the object.
var objInfo ObjectInfo
objInfo, err = obj.PutObject(context.Background(), bucket, "object"+strconv.Itoa(i),
mustGetHashReader(b, bytes.NewBuffer(textData), int64(len(textData)), md5hex, sha256hex), metadata)
if err != nil {
b.Fatal(err)
}
if objInfo.ETag != md5hex {
b.Fatalf("Write no: %d: Md5Sum mismatch during object write into the bucket: Expected %s, got %s", i+1, objInfo.ETag, md5hex)
}
}
// benchmark utility which helps obtain number of allocations and bytes allocated per ops.
b.ReportAllocs()
// the actual benchmark for GetObject starts here. Reset the benchmark timer.
b.ResetTimer()
for i := 0; i < b.N; i++ {
var buffer = new(bytes.Buffer)
err = obj.GetObject(context.Background(), bucket, "object"+strconv.Itoa(i%10), 0, int64(objSize), buffer, "")
if err != nil {
b.Error(err)
}
}
// Benchmark ends here. Stop timer.
b.StopTimer()
}
// randomly picks a character and returns its equivalent byte array.
func getRandomByte() []byte {
const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
// seeding the random number generator.
rand.Seed(UTCNow().UnixNano())
var b byte
// pick a character randomly.
b = letterBytes[rand.Intn(len(letterBytes))]
return []byte{b}
}
// picks a random byte and repeats it to size bytes.
func generateBytesData(size int) []byte {
// repeat the random character chosen size
return bytes.Repeat(getRandomByte(), size)
}
// creates XL/FS backend setup, obtains the object layer and calls the runGetObjectBenchmark function.
func benchmarkGetObject(b *testing.B, instanceType string, objSize int) {
rootPath, err := newTestConfig(globalMinioDefaultRegion)
if err != nil {
b.Fatalf("Unable to initialize config. %s", err)
}
defer os.RemoveAll(rootPath)
// create a temp XL/FS backend.
objLayer, disks, err := prepareBenchmarkBackend(instanceType)
if err != nil {
b.Fatalf("Failed obtaining Temp Backend: <ERROR> %s", err)
}
// cleaning up the backend by removing all the directories and files created.
defer removeRoots(disks)
// uses *testing.B and the object Layer to run the benchmark.
runGetObjectBenchmark(b, objLayer, objSize)
}
// creates XL/FS backend setup, obtains the object layer and runs parallel benchmark for ObjectLayer.GetObject() .
func benchmarkGetObjectParallel(b *testing.B, instanceType string, objSize int) {
rootPath, err := newTestConfig(globalMinioDefaultRegion)
if err != nil {
b.Fatalf("Unable to initialize config. %s", err)
}
defer os.RemoveAll(rootPath)
// create a temp XL/FS backend.
objLayer, disks, err := prepareBenchmarkBackend(instanceType)
if err != nil {
b.Fatalf("Failed obtaining Temp Backend: <ERROR> %s", err)
}
// cleaning up the backend by removing all the directories and files created.
defer removeRoots(disks)
// uses *testing.B and the object Layer to run the benchmark.
runGetObjectBenchmarkParallel(b, objLayer, objSize)
}
// Parallel benchmark utility functions for ObjectLayer.PutObject().
// Creates Object layer setup ( MakeBucket ) and then runs the PutObject benchmark.
func runPutObjectBenchmarkParallel(b *testing.B, obj ObjectLayer, objSize int) {
rootPath, err := newTestConfig(globalMinioDefaultRegion)
if err != nil {
b.Fatalf("Unable to initialize config. %s", err)
}
defer os.RemoveAll(rootPath)
// obtains random bucket name.
bucket := getRandomBucketName()
// create bucket.
err = obj.MakeBucketWithLocation(context.Background(), bucket, "")
if err != nil {
b.Fatal(err)
}
// get text data generated for number of bytes equal to object size.
textData := generateBytesData(objSize)
// generate md5sum for the generated data.
// md5sum of the data to written is required as input for PutObject.
metadata := make(map[string]string)
md5hex := getMD5Hash([]byte(textData))
sha256hex := ""
// benchmark utility which helps obtain number of allocations and bytes allocated per ops.
b.ReportAllocs()
// the actual benchmark for PutObject starts here. Reset the benchmark timer.
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
i := 0
for pb.Next() {
// insert the object.
objInfo, err := obj.PutObject(context.Background(), bucket, "object"+strconv.Itoa(i),
mustGetHashReader(b, bytes.NewBuffer(textData), int64(len(textData)), md5hex, sha256hex), metadata)
if err != nil {
b.Fatal(err)
}
if objInfo.ETag != md5hex {
b.Fatalf("Write no: Md5Sum mismatch during object write into the bucket: Expected %s, got %s", objInfo.ETag, md5hex)
}
i++
}
})
// Benchmark ends here. Stop timer.
b.StopTimer()
}
// Parallel benchmark utility functions for ObjectLayer.GetObject().
// Creates Object layer setup ( MakeBucket, PutObject) and then runs the benchmark.
func runGetObjectBenchmarkParallel(b *testing.B, obj ObjectLayer, objSize int) {
rootPath, err := newTestConfig(globalMinioDefaultRegion)
if err != nil {
b.Fatalf("Unable to initialize config. %s", err)
}
defer os.RemoveAll(rootPath)
// obtains random bucket name.
bucket := getRandomBucketName()
// create bucket.
err = obj.MakeBucketWithLocation(context.Background(), bucket, "")
if err != nil {
b.Fatal(err)
}
// get text data generated for number of bytes equal to object size.
textData := generateBytesData(objSize)
// generate md5sum for the generated data.
// md5sum of the data to written is required as input for PutObject.
// PutObject is the functions which writes the data onto the FS/XL backend.
metadata := make(map[string]string)
md5hex := getMD5Hash([]byte(textData))
sha256hex := ""
for i := 0; i < 10; i++ {
// insert the object.
var objInfo ObjectInfo
objInfo, err = obj.PutObject(context.Background(), bucket, "object"+strconv.Itoa(i),
mustGetHashReader(b, bytes.NewBuffer(textData), int64(len(textData)), md5hex, sha256hex), metadata)
if err != nil {
b.Fatal(err)
}
if objInfo.ETag != md5hex {
b.Fatalf("Write no: %d: Md5Sum mismatch during object write into the bucket: Expected %s, got %s", i+1, objInfo.ETag, md5hex)
}
}
// benchmark utility which helps obtain number of allocations and bytes allocated per ops.
b.ReportAllocs()
// the actual benchmark for GetObject starts here. Reset the benchmark timer.
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
i := 0
for pb.Next() {
err = obj.GetObject(context.Background(), bucket, "object"+strconv.Itoa(i), 0, int64(objSize), ioutil.Discard, "")
if err != nil {
b.Error(err)
}
i++
if i == 10 {
i = 0
}
}
})
// Benchmark ends here. Stop timer.
b.StopTimer()
}