Files
dolt/go/performance/serverbench/diff_bench_test.go
2022-06-01 17:04:14 -07:00

59 lines
1.5 KiB
Go

// Copyright 2022 Dolthub, 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 serverbench
import (
"fmt"
"testing"
"github.com/stretchr/testify/require"
_ "github.com/go-sql-driver/mysql"
"github.com/gocraft/dbr/v2"
)
func init() {
connStr := fmt.Sprintf("%v:%v@tcp(%v:%v)/%s",
"root", "", "127.0.0.1", 3306, "diffbench")
conn, err := dbr.Open("mysql", connStr, nil)
if err != nil {
panic(err)
}
sess = conn.NewSession(&dbr.NullEventReceiver{})
}
var sess *dbr.Session
func BenchmarkServerDiff(b *testing.B) {
b.Run("point diff", func(b *testing.B) {
benchmarkQuery(b, "SELECT count(*) "+
"FROM dolt_commit_diff_difftbl "+
"WHERE to_commit=HASHOF('HEAD') "+
"AND from_commit=HASHOF('HEAD^')")
})
b.Run("point lookup", func(b *testing.B) {
benchmarkQuery(b, "SELECT * FROM difftbl WHERE pk = 12345")
})
}
func benchmarkQuery(b *testing.B, query string) {
for i := 0; i < b.N; i++ {
r, err := sess.Query(query)
require.NoError(b, err)
require.NoError(b, r.Close())
}
}