You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
1.6 KiB
83 lines
1.6 KiB
package db
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/binary"
|
|
"fmt"
|
|
"testing"
|
|
|
|
. "github.com/tendermint/go-common"
|
|
)
|
|
|
|
func BenchmarkRandomReadsWrites(b *testing.B) {
|
|
b.StopTimer()
|
|
|
|
numItems := int64(1000000)
|
|
internal := map[int64]int64{}
|
|
for i := 0; i < int(numItems); i++ {
|
|
internal[int64(i)] = int64(0)
|
|
}
|
|
db, err := NewCLevelDB(Fmt("test_%x", RandStr(12)))
|
|
if err != nil {
|
|
b.Fatal(err.Error())
|
|
return
|
|
}
|
|
|
|
fmt.Println("ok, starting")
|
|
b.StartTimer()
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
// Write something
|
|
{
|
|
idx := (int64(RandInt()) % numItems)
|
|
internal[idx] += 1
|
|
val := internal[idx]
|
|
idxBytes := int642Bytes(int64(idx))
|
|
valBytes := int642Bytes(int64(val))
|
|
//fmt.Printf("Set %X -> %X\n", idxBytes, valBytes)
|
|
db.Set(
|
|
idxBytes,
|
|
valBytes,
|
|
)
|
|
}
|
|
// Read something
|
|
{
|
|
idx := (int64(RandInt()) % numItems)
|
|
val := internal[idx]
|
|
idxBytes := int642Bytes(int64(idx))
|
|
valBytes := db.Get(idxBytes)
|
|
//fmt.Printf("Get %X -> %X\n", idxBytes, valBytes)
|
|
if val == 0 {
|
|
if !bytes.Equal(valBytes, nil) {
|
|
b.Errorf("Expected %X for %v, got %X",
|
|
nil, idx, valBytes)
|
|
break
|
|
}
|
|
} else {
|
|
if len(valBytes) != 8 {
|
|
b.Errorf("Expected length 8 for %v, got %X",
|
|
idx, valBytes)
|
|
break
|
|
}
|
|
valGot := bytes2Int64(valBytes)
|
|
if val != valGot {
|
|
b.Errorf("Expected %v for %v, got %v",
|
|
val, idx, valGot)
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
db.Close()
|
|
}
|
|
|
|
func int642Bytes(i int64) []byte {
|
|
buf := make([]byte, 8)
|
|
binary.BigEndian.PutUint64(buf, uint64(i))
|
|
return buf
|
|
}
|
|
|
|
func bytes2Int64(buf []byte) int64 {
|
|
return int64(binary.BigEndian.Uint64(buf))
|
|
}
|