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// Copyright 2019 PingCAP, 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package rowcodec_test
import (
"testing"
"time"
"github.com/pingcap/parser/mysql"
"github.com/pingcap/tidb/sessionctx/stmtctx"
"github.com/pingcap/tidb/tablecodec"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/chunk"
"github.com/pingcap/tidb/util/rowcodec"
)
func BenchmarkEncode(b *testing.B) {
b.ReportAllocs()
oldRow := types.MakeDatums(1, "abc", 1.1)
var xb rowcodec.Encoder
var buf []byte
colIDs := []int64{1, 2, 3}
var err error
for i := 0; i < b.N; i++ {
buf, err = xb.Encode(nil, colIDs, oldRow, buf)
if err != nil {
b.Fatal(err)
}
}
}
func BenchmarkEncodeFromOldRow(b *testing.B) {
b.ReportAllocs()
oldRow := types.MakeDatums(1, "abc", 1.1)
oldRowData, err := tablecodec.EncodeOldRow(new(stmtctx.StatementContext), oldRow, []int64{1, 2, 3}, nil, nil)
if err != nil {
b.Fatal(err)
}
var xb rowcodec.Encoder
var buf []byte
for i := 0; i < b.N; i++ {
buf, err = rowcodec.EncodeFromOldRow(&xb, nil, oldRowData, buf)
if err != nil {
b.Fatal(err)
}
}
}
func BenchmarkDecode(b *testing.B) {
b.ReportAllocs()
oldRow := types.MakeDatums(1, "abc", 1.1)
colIDs := []int64{-1, 2, 3}
tps := []*types.FieldType{
types.NewFieldType(mysql.TypeLonglong),
types.NewFieldType(mysql.TypeString),
types.NewFieldType(mysql.TypeDouble),
}
var xb rowcodec.Encoder
xRowData, err := xb.Encode(nil, colIDs, oldRow, nil)
if err != nil {
b.Fatal(err)
}
cols := make([]rowcodec.ColInfo, len(tps))
for i, tp := range tps {
cols[i] = rowcodec.ColInfo{
ID: colIDs[i],
Tp: int32(tp.Tp),
Flag: int32(tp.Flag),
Flen: tp.Flen,
Decimal: tp.Decimal,
Elems: tp.Elems,
Collate: tp.Collate,
}
}
decoder := rowcodec.NewChunkDecoder(cols, -1, nil, time.Local)
chk := chunk.NewChunkWithCapacity(tps, 1)
for i := 0; i < b.N; i++ {
chk.Reset()
err = decoder.DecodeToChunk(xRowData, 1, chk)
if err != nil {
b.Fatal(err)
}
}
}