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|
package gozstd
import (
"bytes"
"fmt"
"io"
"testing"
)
func BenchmarkReaderDict(b *testing.B) {
for _, blockSize := range benchBlockSizes {
b.Run(fmt.Sprintf("blockSize_%d", blockSize), func(b *testing.B) {
for _, level := range benchCompressionLevels {
b.Run(fmt.Sprintf("level_%d", level), func(b *testing.B) {
benchmarkReaderDict(b, blockSize, level)
})
}
})
}
}
func benchmarkReaderDict(b *testing.B, blockSize, level int) {
bd := getBenchDicts(level)
block := newBenchString(blockSize * benchBlocksPerStream)
cd := CompressDict(nil, block, bd.cd)
b.Logf("compressionRatio: %f", float64(len(block))/float64(len(cd)))
b.ReportAllocs()
b.SetBytes(int64(len(block)))
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
r := bytes.NewReader(cd)
zr := NewReaderDict(r, bd.dd)
defer zr.Release()
buf := make([]byte, blockSize)
for pb.Next() {
for {
_, err := io.ReadFull(zr, buf)
if err != nil {
if err == io.EOF {
break
}
panic(fmt.Errorf("unexpected error: %s", err))
}
}
r.Reset(cd)
zr.Reset(r, bd.dd)
}
})
}
func BenchmarkReader(b *testing.B) {
for _, blockSize := range benchBlockSizes {
b.Run(fmt.Sprintf("blockSize_%d", blockSize), func(b *testing.B) {
for _, level := range benchCompressionLevels {
b.Run(fmt.Sprintf("level_%d", level), func(b *testing.B) {
benchmarkReader(b, blockSize, level)
})
}
})
}
}
func benchmarkReader(b *testing.B, blockSize, level int) {
block := newBenchString(blockSize * benchBlocksPerStream)
cd := CompressLevel(nil, block, level)
b.Logf("compressionRatio: %f", float64(len(block))/float64(len(cd)))
b.ReportAllocs()
b.SetBytes(int64(len(block)))
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
r := bytes.NewReader(cd)
zr := NewReader(r)
defer zr.Release()
buf := make([]byte, blockSize)
for pb.Next() {
for {
_, err := io.ReadFull(zr, buf)
if err != nil {
if err == io.EOF {
break
}
panic(fmt.Errorf("unexpected error: %s", err))
}
}
r.Reset(cd)
zr.Reset(r, nil)
}
})
}
|
